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Top freelance Java developers available to hire

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Freelance Java Developer - SALAKO TESLIM
Freelance Java Developer5.0 (37 reviews)

Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.

Freelance Java Developer - Adrian Segui
Freelance Java Developer5.0 (213 reviews)

Working in the IT sector for more than 10 years. With over 10 -years of freelancing and professional experience taught me all kinds of frameworks and languages, ranging from React, Angular, Vue, Node js, Express js, React Native, Redux, Rx JS, JavaScript, Typescript, WordPress, PHP, MySQL, MongoDB, Firebase, Sqlite, Postgresql, ES5+, Python3, Machine Learning, Deep Learning, RNN, CNN, Android Java/Kotlin, iOS Swift/SwiftUI, C/C#/C++, .Net, Assembly, VBA, VB, Excel Macro, Java, Spring Boot Micro-services, Zoho, Salesforce, Hubspot, R, Shiny, STATA, MATLAB, Google Sheet, App Script, Bubble io, etc. Over my long career, I have come across all kinds of challenges and gained vast experience with different kinds of industries like portals, medical industry, perception exercise, employee management, etc. I have good experience with frontend development using React JS along with Typescript, Firebase, GraphQL, React Native, Native Script, React, Material UI, Ionic, Node.js, Web Sockets, and real-time communication. I have also worked on containerization technologies like Kubernetes, Docker, AWS, GCP, Azure etc. I am very good with backend technologies as well like Java Spring boot, Microservices, MySQL, Postgres, Elasticsearch, AWS/Google integration. Please contact me to get the result done in a professional way.

Freelance Java Developer - Ajay Sharma
Freelance Java Developer5.0 (2 reviews)
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I want to become a Codementor because I enjoy sharing my knowledge and helping others grow in their careers. I find it rewarding to evaluate candidates, provide constructive feedback, and contribute to building strong, skilled teams.

Freelance Java Developer - Opeoluwa Lanre
Freelance Java Developer5.0 (138 reviews)
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A full-stack software engineer passionate about crafting scalable, high-performing web solutions. With a strong focus on appealing user interfaces, efficient software design, and outstanding online platforms, I leverage my tech stack to build exceptional products. I thrive on collaborating with other talented engineers to deliver quick and effective solutions.

Freelance Java Developer - RajhaRajesuwari S
Freelance Java Developer5.0 (2371 reviews)
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MY WORK HOURS : 7AM to 11 PM INDIAN STANDARD TIME . 16 HOURS A DAY :) I am an experienced full stack developer 15 years in the field with consistent knowledge in developing web portals with expertise in all opensource of PHP like Wordpress , Opencart, Oscommerce, Shopify, Magento, Joomla and all frameworks of PHP - cake php , larvel, CodeIgniter, YII . I do also offer services in SEO, Malware removal, speed optimizations , Skilled with Javascript ,Node js and React . Hence moving forward with full stack development Faster delivery and 24/7 communication are my greatest plus. I do have a team of 10 . 2 designers and 8 coders to support on large scale web developments

Freelance Java Developer - Christoph Gulden
Freelance Java Developer

Hi! I’m Christoph — a certified Python developer (PCPP1), experienced software engineer, and ex-BCG consultant. I’ve helped professionals and teams debug smarter, prep for certifications, and turn complexity into clarity. **Let’s simplify your next challenge.**

Freelance Java Developer - David Schoutens
Freelance Java Developer5.0 (57 reviews)

Full-stack software craftsman and technical leader with over 15 years of experience. Equally adept at system design, programming, technical leadership, mentorship, and business collaboration. Have a wide breadth of technical experience, but specialize in backend API development, relational databases, and web applications. Passionate about simplicity and efficiency. I have worked at over a dozen companies large and small, in a handful of different domains. Also participated in hundreds of interviews, about half-and-half as the interviewer and the interviewee. I have given dozens of talks and training sessions on a variety of topics, mostly focusing on distributed systems, caching, and testing. My top skills are Java, SQL, testing, and refactoring. I have experience with formal academic and professional mentorship, and would love to help you skill up, solve a problem, or just nerd out with you today!

Freelance Java Developer - Erum Mehmood
Freelance Java Developer5.0 (52 reviews)

Embark on a transformative coding journey with me, a visionary computer science expert and a passionate mentor, bringing over two decades of rich expertise in the dynamic realms of programming, data science, and software architecture. My technical skills span across a broad spectrum, including mastery in programming languages like Python, Java, C++, C, and Scala, along with a profound understanding of algorithms, data structures, and the complex art of software design. My research interests include big data analysis, semi-stream join algorithms, and real-time data warehousing. As a mentor, I've illuminated the path for students globally, from prestigious universities in the USA, Australia, Canada, and the UK, in a vast array of subjects from Big Data Analytics to Cyber Security, and advanced programming languages. Currently, I am a lecturer of Computer Science at a Higher Education Institute. My academic prowess is underscored by a **PhD** in Computer Science, with my doctoral thesis titled: "Integrated Real-Time Distributed Stream-Disk Processing Architecture for Unstructured Big Data". Join me on codementor, where together, we'll navigate the intricacies of technology, unleashing the potential to innovate, solve real-world problems, and excel in your programming career.

Freelance Java Developer - Christian Schlosser
Freelance Java Developer5.0 (6 reviews)

I am a seasoned German C++ coder (10+ years of coding) and have high skills in C, C++, C#, Qt, Java, JavaScript, HTML, CSS, Kotlin, PHP, SQL, and Python. Main Skills: * Developing Windows Desktop and Other Programs (C/C++/C#, ASP.NET, Qt, Java) * Browser Extension, Cross Platform Kernel Driver, Image & Video processing. * Machine Learning and Artifical Intelligence Python * Converting or porting code from one programming language to another. Programming language. * C/C++/C#, Qt, JAVA * Python Experience * Android, iOS mobile development with React and protection * Cross Platform Kernel Driver Development Secondary Skills: * Review project and make design document and analysis document. * Write article or whitepaper Thank you for your reading my profile.. Regards.

Freelance Java Developer - Abdulganiyu Abubakar
Freelance Java Developer5.0 (41 reviews)

I am a software developer with years of experience and proven track record of accuracy and commended performance in modular and object oriented programming with dedicated and exceptional work ethic and passion.

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Frequently asked questions

How long do Java projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Java project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Java request on Codementor, check out our article.

How much does it cost to hire a freelance Java developer?

We don’t charge anything when you post a freelance hiring request for Java developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor Java developers different?

We do a comprehensive technical and communications screen of all Java developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Java developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your Java project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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