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Understanding the Cost to Hire a Software Developer

Yogesh — Mon, 08 Jul 2019 05:51:31 +0000

If you are in this article, it means you are budgeting for software development and, hence, trying to under the various costs of hiring developers. The digital ecosphere is booming every day, and the cost of hiring software developers is also soaring. As per studies by Grand View Research and GlobesNewswire, in 2021, the global market of software development was valued at USD 24.46 billion and is predicted to hit $85.9 billion by 2028.

Hence, several factors should be considered to stay on budget and make smart strategic planning decisions for onboarding developers. The primary is the project’s complexity, which includes assessing the scope, timeline, tech stack, and potential needs for maintenance and support down the line.

Next, consider your hiring model. Are you going with an in-house team or outsourcing the work? Both options come with their own sets of costs. In-house hiring means covering recruitment, salaries, benefits, training, and infrastructure, as well as possible turnover costs. Outsourcing involves contracting fees, communication challenges, quality assurance, and potential time zones and cultural differences.

Another important choice is whether you need a single developer or a whole team, consider the size and mix of skills you will need to bring your project to life efficiently. Cost estimations should include both fixed and variable expenses, hourly rates, and some wiggle room in the form of a contingency budget for unexpected issues.

The final key component of strategic planning is determining the scalability and flexibility of your project. Make sure it aligns with your business goals and return on investment. By considering all these factors, you can develop a thorough budget that will set your software development project up for success.

Hiring a first-rate software developer can be demanding, especially when you need to sift countless candidates to pick up the best. When planning resources and efforts, you ultimately arrive at a cost, which makes having accurate estimates absolutely necessary. Here, in this blog we will simplify those intricate calculations.

Hiring Models on Development Costs

When deciding on a hiring model for your software development needs, it’s essential to weigh your options based on your project’s requirements, budget constraints, and long-term goals as each hiring model comes with its own advantages and drawbacks. Freelance developers may be a good fit for small or specialized tasks, while an in-house team could be more beneficial for long-term, cohesive development. Outsourcing, on the other hand, can offer cost-effective scalability for projects requiring a quick ramp-up.

Here’s a comparative analysis to guide you through the choices:

Freelance Software Development

Flexibility – Hiring freelance developers can offer significant flexibility in terms of when and how much you engage them. This model is great for short-term projects or specialized tasks.
Cost Benefits – Freelance developers typically come with fewer overheads—no benefits or dedicated workspace required. Rates can be lower than full-time employees, but there can be variability based on skill level, experience, and project complexity.
Potential Drawbacks – Coordinating and managing might be a challenge, especially with multiple freelancers working on different aspects of the project. Communication can also be less seamless.

In-House Development Team

Enhanced Collaboration—An in-house team allows for direct communication and more cohesive collaboration, which can lead to higher-quality work and greater focus on your project.
Cost Structure – While comprehensive, the cost includes not only salaries but also benefits, training, and other HR-related expenses. This can add up, making it a larger investment.
Long-Term Focus – Building an in-house team can lead to a deeper understanding of your business and long-term goals, which may enhance innovation and ongoing project improvements.

Outsourcing Software Development

Cost-Effectiveness – Outsourcing can be a cost-effective option, particularly for large projects or when needing specific expertise. Companies can find competitive rates both domestically and internationally.
Scalability – This model is a viable solution for companies looking to scale quickly, as outsourcing firms often have the resources and experience to handle larger projects efficiently.
Considerations – Be mindful of management overheads, such as monitoring progress and ensuring quality assurance. Time zone differences and potential cultural barriers might impact communication and project timelines.

Analyzing Skill Levels and Project Complexity

Skill levels and project complexity play a significant role in determining hiring costs when it comes to budgeting for software development. Business leaders need to weigh the pros and cons of different types of developers and projects to make strategic decisions about how to allocate their resources.

Entry-Level vs. Senior Developer Costs

When comparing entry-level and senior developers, there is a noticeable difference in costs and capabilities. Entry-level developers generally charge lower hourly rates but may lack the experience and advanced skills of their senior counterparts. While entry-level developers can handle foundational tasks, they might struggle with more complex challenges. In contrast, senior developers command higher rates due to their extensive experience and advanced technical skills. They bring substantial value to a project by efficiently addressing intricate problems and providing innovative solutions. Employers must decide whether the lower rates of entry-level developers justify the potential trade-offs in efficiency and quality compared to the higher rates of senior developers.

Simple vs. Complex Project Costs

Project complexity can significantly affect development costs and the skills required from the development team. Simple projects often require fewer development hours and can typically be managed by a mix of skill levels to optimize costs. For instance, creating a basic informational website might be well-suited to entry-level or mid-level developers. These projects can be completed efficiently with fewer resources and less specialized knowledge.

On the other hand, complex projects, such as a custom software platform or an AI application, demand more experienced professionals due to increased risks and technical challenges. Senior developers, though more expensive, bring advanced problem-solving skills and innovation to the table. Their expertise helps mitigate risks and ensures the project’s success. For example, a complex project may involve advanced technologies like machine learning or cloud computing, requiring a higher budget for specialized solutions and additional resources.

Local vs. Overseas Developers

When choosing between local and overseas developers, employers should consider cost, communication, and project management challenges. Local developers offer the advantages of easier communication, similar time zones, and a better understanding of local markets and business contexts. However, hiring local developers often comes with higher hourly rates.

In contrast, hiring overseas developers can lead to cost savings due to lower rates in certain regions. Nevertheless, challenges such as time zone differences, potential communication barriers, and cultural nuances can impact project management and delivery. Employers must balance the cost benefits of overseas hiring against potential challenges in coordination and project quality.

The best way to arrive at accurate cost estimates when hiring for a particular software development role is to have an estimate of hourly rate. However, it’s difficult to provide an accurate per hour rate for software development roles, since as we saw, it can vary depending on several factors such as experience, skills, location, industry, and company. However, here average hourly rates by experience level in known software development destinations. Having an idea of how much hiring a particular technical expertise may cost you can take you closer to accurate estimates. Here is what you can expect to incur when hiring specific roles from above destinations.

Country	Junior Developer	Mid-Senior Developer	Senior Developer
India	$10 – $20	$20 – $40	$40 – $80
Ukraine	$20 – $30	$30 – $50	$50 – $80
China	$15 – $25	$25 – $35	$35 – $55
Mexico	$15 – $25	$25 – $35	$35 – $55
Phillippines	$10 – $20	$20 – $30	$30 – $50

Having an idea of how much hiring a particular technical expertise may cost you can take you closer to accurate estimates. Here is what you can expect to incur when hiring specific roles from above destinations.

Country	Front-End Developers	Back-End Developers	Full-Stack Developers	Mobile App Developers	Blockchain Developers	AI/ML Developers	DevOps Engineers
India	$15-$30	$20-$40	$25-$50	$20-$40	$35-$70	$35-$70	$25-$50
Ukraine	$25-$50	$30-$60	$35-$70	$30-$60	$50-$00	$50-$00	$35-$70
China	$25-$45	$30-$50	$35-$60	$30-$50	$45-$80	$45-$80	$35-$60
Mexico	$20-$35	$25-$40	$30-$50	$25-$40	$40-$70	$40-$70	$30-$50
Phillippines	$15-$30	$20-$40	$25-$50	$20-$40	$35-$70	$35-$70	$25-$50

This data is just an estimate to give you an idea of what rate you can expect if you’re looking to hire a software development professional at a particular level or with particular expertise from a certain country. Rates change constantly and are subject to various factors, including the current global and local economic situation, local regulations and policies, and demand for expertise. So, it’s always best to research the current market trends and rates for a specific role and location before making any hiring or salary decisions.

Sourcing Software Developers Applicants

There are several methods of sourcing software developer applicants, each with its own impact on hiring costs and efficiency. Let’s examine each factor and how it affects the cost of hiring software developers:

Job Boards

Using job boards to post job listings can be a convenient way to reach a large pool of potential candidates. The cost of posting varies depending on the job board and the visibility of your posting—premium or sponsored listings typically come with higher fees. For example, listing a software developer position on a major job board like LinkedIn Jobs might cost more if you want to promote your listing for maximum exposure. While job boards offer a broad reach, you may encounter a mix of candidate qualities, requiring you to invest significant time in reviewing applications and conducting initial screenings to identify the most suitable candidates. This time investment can lead to increased recruitment overheads if you don’t have efficient processes in place.

Applicant Tracking System (ATS)

An Applicant Tracking System (ATS) is a software tool that automates various aspects of the recruitment process, such as resume screening, application management, and interview scheduling. Implementing and maintaining an ATS involves upfront costs for the software itself, as well as potential subscription fees for ongoing use. For instance, a company might invest in an ATS, which streamlines the hiring process by quickly filtering resumes based on keywords and other criteria. This can save you time and money in the long run, as it reduces manual labor and speeds up candidate selection. However, integration and customization with other HR tools or platforms may add to the cost and implementation time.

External Recruiters

Hiring an external recruiter can be a valuable approach, particularly if you need specialized expertise or are struggling to find qualified candidates on your own. Recruitment fees are often based on a percentage of the new hire’s salary, which can be substantial but may be worth it for the recruiter’s industry knowledge and extensive network. For example, a recruiter specializing in software development might have connections with top-tier developers that would be difficult to reach otherwise. This can lead to higher-quality candidates and a quicker hiring process, reducing the risk of a bad hire and its associated costs.

HR/Internal Recruiter Costs

If you have an in-house HR or recruitment team, you need to account for salaries and associated overhead costs, such as benefits, training, and office space. While this can add to your ongoing expenses, an internal team can manage the entire hiring process more cost-effectively for your long-term needs. For instance, internal recruiters handle job postings, initial screenings, interviews, and candidate evaluations, providing a consistent and streamlined experience for both your team and potential hires. Additionally, internal recruiters may have a better understanding of your company’s culture and values, leading to a stronger match with new hires and potentially reducing long-term turnover.

Recruitment

The recruitment process of hiring software developers involves several stages that affect costs in different ways. By understanding the costs associated with each stage of the hiring process, from recruitment to onboarding, you can create a comprehensive budget that accounts for the various expenses involved in bringing a new software developer onto your team. This careful planning can help you manage costs effectively and achieve a smooth and efficient hiring process. Let’s explore each stage:

Recruitment

The recruitment stage involves sourcing candidates and attracting them to apply for open positions. This includes advertising job postings on various platforms, working with external recruiters if necessary, and leveraging networking opportunities. Costs during this stage may include fees for job board postings, external recruiter commissions, or marketing expenses for job advertisements. For example, promoting a job opening on a major job board might involve a substantial fee for increased visibility.

Assessment

Assessment involves evaluating candidates to determine if they meet the required qualifications and skills for the role. This can include technical tests, coding challenges, and other assessments. These evaluation tools can have associated costs, such as purchasing assessment software or hiring specialists to design and administer the tests. For instance, you might invest in an online coding assessment platform like HackerRank or Codility to efficiently test candidates’ technical skills.

Interviews

The interview process is a crucial part of hiring software developers, but it can also be resource-intensive and costly. This stage often involves multiple rounds of interviews, including technical interviews and behavioral assessments. Conducting interviews requires time and effort from your team members, potentially diverting them from other work. If you conduct remote interviews, you might also need to invest in video conferencing tools and software. Additionally, the logistics of scheduling and coordinating interviews can be complex, especially if candidates are from different time zones.

Training Costs

Once a new hire is selected, you need to invest in their training to ensure they can effectively perform their job. Training costs can vary widely depending on the complexity of the role and the developer’s existing skill set. These costs may include purchasing training materials, subscribing to online learning platforms, or hiring trainers for in-person sessions. For example, you might pay for a new developer to attend specialized training in a specific technology stack to get them up to speed quickly.

Onboarding Costs

Onboarding is the process of integrating new hires into your team and company culture. Costs in this stage can include providing equipment such as laptops and other hardware, setting up accounts and software tools, and offering benefits and perks. For instance, you might provide a welcome package or team-building activities to help the new hire acclimate to your company. Effective onboarding can improve employee retention and productivity, but it does involve an initial investment.

Overall Cost Calculation

Multiple factors must be considered when calculating the overall cost of hiring software developers. Both freelance software developers and software teams offer distinct advantages and challenges. Freelancers may be more flexible and cost-effective for specific projects, while hiring a software team, either in-house or outsourced, may be more suitable for larger, ongoing projects. To make the best decision for your needs, carefully consider the project’s scope, timeline, and budget, as well as your long-term goals and team management capabilities.

Freelance software developers and software teams have different cost structures. Let us break down each option.

How much do freelance software developers charge?

The rates for freelance software developers can vary widely depending on factors such as their experience, location, technical skills, and the complexity of the project. Here are some key points to consider:

Hourly Rates – Freelance developers typically charge by the hour. Rates can range from around $20 to $150 per hour or more, depending on the developer’s expertise and the project’s demands. For example, a junior freelance developer may charge around $30–$50 per hour, while a senior developer with specialized skills could command rates of $100–$150 per hour.
Project-Based Pricing – Some freelance developers may offer project-based pricing for fixed-scope projects. This approach can help you manage your budget more effectively by providing a clear cost estimate upfront.
Additional Expenses – You may need to budget for potential additional costs, such as software licenses or tools the freelancer might need to complete the project. Additionally, communication and collaboration tools may add to your overall costs.

How much does it cost to hire a software team?

Hiring a software team can be a more complex and potentially expensive process, depending on whether you opt for an in-house team or outsource the work.

In-House Software Team

Salaries and Benefits – When hiring full-time developers, you must account for their salaries and benefits (e.g., health insurance, retirement plans). Software developer salaries vary depending on experience, location, and skill set. For instance, an entry-level developer in the United States might earn around $60,000–$80,000 per year, while a senior developer’s salary could be $100,000–$150,000 or more.
Overhead Costs – In addition to salaries, you need to consider other costs such as office space, equipment (e.g., computers and software), and ongoing training and development.
HR and Management Costs – Managing an in-house team involves HR expenses for recruitment, onboarding, and ongoing management.

Outsourced Software Team

Contract Fees—Outsourcing to a software development company usually involves contracting fees, which can be structured as project-based or hourly rates. Rates can vary depending on the company’s location and the project’s complexity.
International vs. Domestic Outsourcing – Domestic outsourcing may cost more than international outsourcing, but it can offer benefits such as easier communication and fewer cultural or language barriers. International outsourcing may provide lower rates, but you need to account for potential time zone differences and communication challenges.
Quality Assurance and Management Overhead – Outsourced projects may require additional quality assurance measures and management overhead to ensure the project’s success, especially if working across different time zones and cultures.

The post Understanding the Cost to Hire a Software Developer appeared first on Finoit Technologies.

9 Tips to Hire Java Developers

Yogesh — Mon, 07 Jan 2019 08:06:19 +0000

Java is not just a trend; it is a technology that will stay in the market owing to its versatility, security features, user-friendly applications, and platform independence. Expertise in Java will hence also be a sought-after skill and will show no signs of abating.

Lately, Java has undeniably emerged as one of the most widely used programming languages in the world. Over 222,700 enterprises worldwide, including nearly 91,000 companies in the US, rely on Java’s power and flexibility. As a result, the demand for skilled Java developers is incredibly high. Some of the biggest names in tech, such as Bank of America, Apple, Google, and YouTube, are among the companies vigorously seeking out and hiring Java experts.

With Statista projecting around 28.7 million developers globally by 2024, you must focus on finding candidates with a strong command of Java and its frameworks, as well as the critical skills needed to excel. These include problem-solving abilities, familiarity with various development tools, and the capability to handle complex projects.

Additionally, you can prioritize soft skills such as communication, teamwork, and adaptability. These traits ensure your new hire aligns with your company’s development goals and integrates seamlessly into your team.

Hiring skilled Java developers is crucial for staying competitive in today’s tech-driven market and delivering high-quality software solutions. By targeting individuals who can contribute effectively to your team’s objectives and projects, you’ll set your organization up for success. In the following section of the blog, we will explore nine tips that will help you find the right Java resource from the market.

Java Developers Skills To Look For

When you are hiring Java developers, it’s important to evaluate both hard skills and soft skills. Here are the specific abilities you should be looking for:

Hard Skills

I. Proficiency in Java

Candidates should demonstrate a strong foundation in Java programming, including a solid understanding of object-oriented programming principles. Look for expertise in concepts like inheritance, polymorphism, and encapsulation. Proficiency in advanced Java features such as generics, lambdas, and stream. APIs is also important for writing efficient and modern Java code.

II. Web Development Skills

A well-rounded Java developer should be familiar with both front-end and back-end technologies. This includes working knowledge of HTML, CSS, and JavaScript for building user interfaces, as well as back-end frameworks such as Spring and Hibernate for developing dynamic and efficient server-side applications. Understanding how these technologies work together will enable developers to create seamless and integrated web solutions.

III. Framework Knowledge

Proficiency in Java frameworks is essential for modern Java development. For instance, experience with Spring Boot allows developers to quickly build and deploy microservices with minimal configuration, making it easier to create scalable and maintainable systems. Knowledge of JSF (JavaServer Faces) for web applications can also be advantageous, as it simplifies the development of complex UIs by handling client-server communication efficiently.

IV. Database Skills

Strong database skills are crucial for handling data in Java applications. Developers should be familiar with SQL databases such as Oracle and PostgreSQL, including writing complex queries and managing database schemas. Additionally, familiarity with NoSQL databases like MongoDB is beneficial for working with non-relational data models. The ability to integrate databases seamlessly with Java applications ensures smooth data management and retrieval.

Soft Skills

I. Problem-Solving Skills

Effective problem-solving skills are a must for Java developers. They should be capable of diagnosing and addressing issues efficiently, often under tight deadlines. Creativity in finding solutions and the ability to anticipate potential problems can help prevent costly mistakes and ensure project success.

II. Efficient Communication

Strong communication skills enable developers to articulate their ideas and solutions clearly to team members and stakeholders. Whether it’s discussing technical challenges or explaining project progress, effective communication ensures everyone is on the same page and fosters collaboration.

III. Teamwork

Java development often requires working with other developers, designers, and departments. A good Java developer should be able to collaborate effectively, share knowledge, and contribute to a positive and productive work environment. Team players tend to produce better outcomes and adapt more readily to changing project needs.

IV. Adaptability

The tech landscape is always evolving, so developers must be able to adjust to new challenges and technologies quickly. Being open to learning and embracing change allows them to stay up-to-date and innovate in their work.

V. Time Management

Excellent time management skills enable developers to prioritize tasks and meet project deadlines. This includes knowing when to focus on a specific task and when to seek help or delegate. Good time management not only boosts productivity but also ensures projects are delivered on schedule.

9 Tips To Hire Java Developers

When you are hiring Java developers, there are several critical factors to consider. Here is how you can approach each aspect of the hiring process to ensure you find the perfect candidate for your project:

1. Map Out Java Application Development Requirements

Start by outlining clear project goals and technical needs. Define how your Java application aligns with your business objectives and customer needs. Consider the application’s purpose, the problems it will solve, long-term vision, features, and monetization model. Understanding these aspects will guide you in identifying the technical expertise and soft skills your project requires. Additionally, having a solid plan in place ensures that the developers you hire understand the scope, timeline, and desired outcomes, leading to a smoother development process and successful project delivery.

2. Analyze the Category of Your Java App Development Project

Categorize your project based on its unique requirements, whether it’s web development, custom app creation, game development, or product innovation. This will help you target developers with specific experience in your project’s category. For instance, full-stack web developers excel at creating user-friendly applications, while senior developers are well-suited for complex enterprise projects.

3. Specialization in Industry Verticals

Consider developers’ experience in specific industries such as finance, healthcare, or retail. Industry-specific knowledge can provide valuable insights into compliance, regulations, and best practices, allowing developers to tailor solutions to your sector’s unique needs. This specialization enhances the quality and relevancy of your project. Considering developers’ experience in specific industries like finance, healthcare, or e-commerce can significantly impact the success of your Java project. When a developer is well-versed in your industry, they bring a deep understanding of its unique challenges, requirements, and regulations. Here’s how industry-specific experience can be pivotal:

Compliance and Regulatory Knowledge: Industries such as finance and healthcare have strict regulatory standards and compliance requirements. Developers with experience in these sectors are familiar with the necessary protocols and can build applications that adhere to industry standards.
Domain-Specific Expertise: Industry-specific developers understand the nuances of your field, from industry jargon to specialized functionality. This familiarity can result in more efficient and targeted development, ensuring your project aligns with the needs of your business and end users.
Best Practices and Trends: Developers with a background in your industry are more likely to stay current with the latest trends and best practices. They can offer insights into innovative approaches and solutions that give your project a competitive edge.
Streamlined Communication: When your developers speak the same language as your industry professionals, communication becomes more efficient. This common understanding can lead to clearer project requirements, fewer misunderstandings, and more seamless collaboration.
Tailored Solutions: Developers who specialize in your industry can create solutions that cater specifically to your target audience and their needs. This focus can improve user satisfaction and ultimately contribute to the success of your application.

4. Ability to Leverage Various Java Frameworks and Technologies

Java’s success is partly due to its vast ecosystem of frameworks and tools. Seek candidates who possess a diverse skill set that spans from fundamental Java development to advanced enterprise systems. This versatility allows them to work with a range of technologies and frameworks, from Spring and Hibernate to cutting-edge microservices architectures. By hiring developers who can tackle both basic coding tasks and complex system integrations, you ensure that your team is equipped to handle any challenges that arise during the project lifecycle. Versatile candidates can adapt to changing requirements and provide innovative solutions across different stages of development.

5. Flexible Engagement Model

Choose an engagement model that suits your project’s scope and budget—freelance, part-time, or full-time. A dedicated Java team offers flexibility for evolving projects, while a fixed-price model is ideal if you have a clear vision of your requirements. Consider a company that offers guarantees for satisfaction and quality. Choose an engagement model that best suits your project’s scope, budget, and timeline. Opting for the right engagement type—freelance, full-time, or part-time—can help you meet project demands efficiently.

Freelance: Ideal for short-term projects or specialized tasks, freelancers offer flexibility and can be brought on board as needed. This can be cost-effective and give you access to specialized skills without a long-term commitment.
Full-time: If you have a large-scale, ongoing project that requires consistent effort and dedication, hiring a full-time Java developer ensures you have a committed professional fully engaged with your project.
Part-time: For projects that don’t require full-time attention, part-time developers can offer the best balance. This model allows for a stable, continuous presence on your project while keeping costs in check.

6. Interview Every Certified Java Developer

Interview candidates one-on-one to assess their technical and soft skills. Focus on their understanding of Java frameworks, development methodologies, and key technologies such as MVC, JDBC, and RESTful APIs. Evaluate their ability to work with design patterns, algorithms, and tools. Match the developer’s expertise with your project’s needs to find the best fit. Conduct structured interview processes that thoroughly evaluate candidates’ hard and soft skills, as well as their alignment with your project requirements and qualifications.

This approach ensures you assess their technical proficiency in areas such as coding, debugging, and working with Java frameworks. At the same time, consider their soft skills such as communication, teamwork, and problem-solving abilities, which are crucial for successful collaboration. By using a consistent interview structure, you can compare candidates more effectively and choose those who best match your project’s needs and culture.

7. Select a Java Application Development Methodology to Improve Productivity

Choose a development methodology that aligns with your project’s needs. Agile methods are popular due to their flexibility, iterative feedback, and emphasis on communication. Depending on your preferences and project goals, consider other methodologies like Crystal Methods or DSDM. Choosing the right development methodology is essential for aligning your project with its goals and ensuring efficient progress.

Agile methodologies, such as Scrum, emphasize iterative development, flexibility, and continuous feedback, allowing you to adapt to changes quickly and keep the project on track. These approaches encourage collaboration, frequent communication, and incremental delivery, making it easier to manage risks and meet project milestones. Select a methodology that suits your project’s requirements to optimize productivity, enhance team coordination, and deliver high-quality results.

8. Check out the Case Studies

Review the candidate’s past projects and case studies to assess their experience and success with similar projects. This will give you insight into their problem-solving abilities, creativity, and track record of delivering results. Reference checks can also validate their claims. Evaluating past projects and case studies of potential Java developers is an essential step to gauge their practical experience and effectiveness. This process helps you understand the developer’s abilities and how well they can handle real-world challenges. Here’s how reviewing case studies can inform your hiring decision:

Project Relevance: Case studies provide insight into the types of projects a developer has previously worked on, helping you determine if their experience aligns with your project requirements. Look for projects similar in scope, scale, and complexity to yours.
Problem-Solving Approach: Case studies reveal developers’ approaches to solving problems and overcoming obstacles. Analyze how they tackled challenges and whether they demonstrated creativity, efficiency, and resourcefulness.
Technical Skills and Expertise: By examining past projects, you can evaluate the developer’s proficiency with various Java frameworks, tools, and technologies. This insight helps you determine whether their technical skills match your project’s needs.
Quality of Work: Case studies showcase the quality of a developer’s previous work. Assess their code quality, user interface design, performance optimization, and attention to detail. High-quality work is a strong indicator of a developer’s commitment to excellence.
Client Testimonials: Case studies often include client feedback or testimonials that provide an external perspective on the developer’s performance and professionalism. Positive reviews from previous clients can boost your confidence in the developer’s reliability and capability.
Project Management and Delivery: Case studies can offer information on how well the developer managed and delivered projects, including adherence to timelines and budgets. This aspect is crucial for ensuring your project stays on track.
Outcomes and Impact: Pay attention to the outcomes and impact of past projects. Look for measurable results such as increased user engagement, improved performance, or successful implementation of innovative features.

9. Track Record of Long-Standing Business Relations

Aim for candidates with a proven history of stability and long-term relationships with clients. This reliability suggests they are committed to providing quality work and maintaining successful partnerships. Building a lasting relationship with a Java developer or team ensures continuity and consistent delivery for future projects. When hiring Java developers, prioritize candidates or firms with a proven history of stability and long-term client relationships. This track record often indicates reliability, quality work, and a commitment to building strong partnerships. Developers with a history of maintaining lasting relationships are more likely to deliver consistent results, understand client needs, and adapt to evolving project requirements. By choosing such candidates, you increase the likelihood of a smooth and successful development process supported by trust and clear communication.

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Planning to Hire Freelance Java Developer? Top 11 Questions You Must Ask

Yogesh — Wed, 05 Jul 2017 08:02:56 +0000

Hiring a full stack senior freelance Java developer for a one-time project can turn out to be an expensive endeavor. This is why, lately, the trend of hiring freelancers is emerging in all industries that require the services of Java developers. Fortunately, there are enough of them on the market, willing to sell their services to the highest bidder. Businesses are now considering best freelance Java developers for hire on a diversity of small to large scale projects. Thanks to numerous online communities of freelance professionals, one can, nowadays, easily hire a Java programmer.

But, from the perspective of a business owner, it is not that easy to find a reliable freelance Java developer who will do the job perfectly and on time. Let’s get one thing straight right from the start. For experienced freelance Java developers, you will have to pay anywhere from 30-60 US dollars per hour.

Anyhow, it is better to ask some questions before you hand the project into the freelancer’s hands. These questions will help you determine who is the perfect freelance Java developer for you.

1) Are multitasking and multithreading the same thing?

The answer you should expect is a resounding no. If you get that answer, you should ask the developer to be more specific and to tell you more about both. Here is the answer you are looking for.

Multitasking refers to actions that include simultaneous activities on the computer. There are two types. The first one is named preemptive multitasking. The system automatically pre-empties the running process to another processor. In this scenario, the user is not involved. Non-preemptive multitasking is when the computer has to ask for the user’s confirmation before any process is executed.

On the other hand, multithreading means that the program can manipulate the functionality of multitasking. It divides the program into a thread. After that, each individual thread utilizes the CPU and memory resources as a standalone process. One process can contain multiple threads.

2) Which loop concepts are there in Java?

Loops are very commonly used in programming. A loop concept executes a line of code over and over. Basically, you will have to dig to find a program written in Java that doesn’t use any loops. The answer you are looking for is 3. And, here they are:

* For Loop – this is the standard loop concept. It is used to repeat a task a specific number of times. This loop is used when you know how many time the action has to be repeated.
* While Loop – programmers use this loop when there is the need to execute a line of code only when a certain condition is met. Before executing statements, this loop checks if the condition has been satisfied.
* Do-while Loop – this loop is a mirrored while loop concept. In this loop, statements are executed first, and the loop checks at the end if the conditions are met for breaking out of loop.

3) What are basic Java collections framework interfaces and their advantages?

Java developers must know about Collections as they are core building blocks for using data structures and it reduces development efforts, they are dynamic in size. They also supports thread safety and generic classes.

Also Read: Why should i learn java

Experience freelance java developers must know about implementation of basic interface of collections framework and hands on practice of using following.

Map: Every object stored as key-value pair. Direct implementation of map are HasMap, HashTables, TreeMap. They are used based on requirements like concurrently, data ordering.

Set: Elements are stored with condition that no duplicate elements are allowed. Direct implementation of Set are HashSet, LinkedHashSet, TreeSet.

List: This collection allows duplicate elements to be stored, implementation of this collection framework is done via LinkedList, Vector and ArrayList.

4) How are the threads created? Which one do you use and why?

This is very important, as you want to hire the programmer who is able to build an app that most optimally uses all available resources. Threads can be created in three different ways:
* Extending a thread class
* Implementing a Runnable interface
* The application can create a thread pool by using the Executor framework

Experienced freelance Java developers prefer using a Runnable interface. When you use this interface, there will be no need for objects to inherit the thread class. If your application requires using multiple inheritance, the Java developer you are contacting should know that only interfaces can help you. A runnable interface is very easily implemented and improves the efficiency of your program.

5) How would you store the sensitive data of app users and why?

This answer will help you determine how well the developer is dedicated to their call and whether he or she can extend their knowledge for various purposes.

The answer you are looking for is storing the sensitive data in mutable objects, such as the character array. Once the data has been stored, you can set it to blank so that it is no longer retained in memory and available for exploiting by using a simple memory dump extraction. Storing sensitive data in strings is bad, end of story.

6) What should you avoid when designing an abstract class?

This is a tricky one. The answer you are looking for is avoiding calling abstract methods inside the abstract class constructor. The main problem here is the initialization order. The parent class has to run first, so that the subclass constructor can run as well.

The main reason why this should be avoided is because it places a restriction on how abstract methods can be implemented. If some variable assignments occur after the constructor runs, you will now have access to those in later instances.

7) You code compiles perfectly, but the library is causing the NoClassDefFoundError or NoSuchMethodError. What is going on?

Most Java projects incorporate countless dependencies. All of these dependencies are loaded on the same class path and, in order to handle them, one has to use specific tools, such as Gradle, Ivy, SBT, etc. Using this tools is important. Why? Because when using one of them, you can’t add multiple versions of the same library to the project.

The error messages from above get printed out when there are two libraries in the project that rely on different versions of the same dependency. This happens because Java doesn’t use static linking like some other programming languages do, like C++, for instance. Fixing this issue requires some time and patience. It is important to start from generating dependency reports so that one can see which JAR has a dependency to which libraries.

8) What are enums and how can they be used?

It is always good to check if the Java developer has extensive knowledge on the platform he or she uses. The answer you want to have here should be something like this.

Enums are classes. But, not just any classes; they are final classes with a fixed number of instances. Enums can’t extend another class but they can implement interfaces.

Enums should definitely be used instead of integer constants, as they are flexible and safe to use. Enums can be used in any instance where there is a need for strategy patterns.

9) In Java, can an interface extend to multiple interfaces?

This is a really, really tricky question. It will help you, as an interviewer, see if your candidate is able to think quickly. Also, being able to answer this questions requires extensive knowledge on polymorphism, classes, inheritance, objects, etc.

Java doesn’t have multiple inheritance. This is the main reason why many job candidates may answer “No” to this question. The fact is that this is quite possible and the answer should be yes. The class is the one that can’t extend multiple classes, while the interface can always extend to multiple interfaces.

Make sure not to give up on candidates that say “No” at first and change their answer later on, explaining why they have changed their mind. On the other hand, if you get a resounding “Yes”, make sure to ask why. Some people may know the answers by heart; trust us, you don’t want them developing software for you.

10) Tell me the difference between Errors, Unchecked Exception, and Checked Exception?

Knowing how to handle errors and exceptions is very important for every Java Developer. All of the above mentioned indicate something different. Handling exceptions is especially important when designing large applications.

Errors are more important and more significant than exceptions. They indicate that there is a serious problem that deserves immediate attention. Resolving errors is hard and it usually requires a significant amount of time.

Exceptions are objects. And, any object can be thrown as an exception as long as it is an object the classes of which descend from Throwable. There are two types of exceptions:

* Unchecked Exception – this one inherits from the RuntimeException and treated differently by the Java Virtual Machine. There are usually conditions that reflect errors in the program’s logic.
* Checked Exception – this one inherits from the Exception-class. These are invalid conditions in areas outside the immediate control of the program.

11) What are System.gc(), Runtime.gc() and finalize() methods for?

Resource management is quite important in modern Java development. By asking this question, you will check if your job applicant knows the basic garbage collector’s methods. Besides, this question is also a tricky one, because System.gc() and Runtime.gc() are effectively equivalent. There is some difference though; Runtime,gc() is an instance method while System.gc() is a class method. System.gc*() is more convenient for coding, and it suggests to the Java Virtual Machine to start garbage collection.

Finalize() method is called by the garbage collector. When using the finalize() method, it is advised to release resources that are being held by the object inside the finalize() method.

Well, there you go. If you get satisfying answers to all these questions, don’t lose time, hire the freelancer that has answered them. In case you still have any doubts or you generally feel unsure, interview more candidates. This way, you can compare them and go with the one that got all the answers right and seems the best for you to cooperate with.

In case this subject got you interested, and you want to find out about other means to find a perfect Java freelancer , feel free to read other articles online. Contact Finoit if you are looking to hire freelance Java developers or for a Java application development company. Finoit has experts Java developers and have delivered numerous enterprise projects.

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