Full Stack Developer Needed

@Tafsol

Good day! Thanks for sharing the project details. Could you share the current code repository and functional specifications so I can review the existing implementations and plan improvements? Based on your description, I understand that you need a Java backend developer to improve and maintain existing Spring, JEE, and JPA services, exposed via REST and SOAP. The goal is clean, modular, and well-tested code that supports a Spartacus storefront and third-party integrations, with clear documentation for long-term maintenance. We will ensure all modified extensions build and deploy without regression, API contracts remain backward-compatible, and performance metrics are maintained or improved. We can start immediately once development environment and repositories are accessible. I would love to schedule a meeting or have a detailed conversation about the project to clarify some concerns about the project, this way I can demonstrate my capabilities perfectly and suggest the best result possible. Regards! AN from TAFSOL TECHNOLOGIES Budget and timeline are placeholders

@diektech

Hi — Elias here from Miami. I see you're looking for a full-stack developer experienced with Java-based services, particularly in Spring and JEE. The goal here seems to be ensuring robust functionality across your systems while maintaining a seamless user experience. What usually matters most here is scalability and maintainability. A common issue with systems like this is the complexity in managing integrations and user permissions, which can lead to future challenges if not addressed early. The tricky part is usually ensuring that the API development aligns with both current needs and future expansion. My approach would involve structuring your services with a clear focus on modularity and stability. I advocate for well-defined interfaces and thorough documentation, which can ease future updates and integrations. I've worked on similar projects, optimizing backend interactions and ensuring reliability in RESTful API implementations. A few questions to better understand the scope: Q1 – What specific user roles and permissions do you envision for the system? Q2 – Are there particular integrations or third-party services you’re planning to incorporate? Q3 – What are your expectations for scalability as user demand increases? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand the need to dive into Java-based services in your project. My background in scaling for 1 million users and working with high-security FinTech systems directly applies to your goal of analyzing and improving current implementations in a modular and maintainable way. One strategic insight I can offer is to prioritize clean and reusable code while also focusing on meaningful test coverage to ensure smooth future upgrades. I have successfully implemented similar improvements in past projects, like the Telegram Mini Apps serving over 1 million users, proving my ability to handle complex systems like the one you're working on. I encourage you to reach out so we can discuss the roadmap for strengthening the backend of your platform. Let's work together to ensure new commerce features can roll out faster and more reliably.

@ZohaibRoy

⭐⭐⭐⭐⭐ Enhance Java Services with Spring and JPA for Better Performance ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a Java developer to enhance your services. Look no further; Zohaib is here to assist you! My team has successfully completed 50+ similar projects focused on Java development. I will analyze your current implementations, identify pain points, and propose improvements that follow Hybris best practices. I will create clean, reusable code while ensuring thorough testing for smooth upgrades. Additionally, I will document all changes clearly for your in-house team to maintain the platform effectively. ➡️ Why Me? I can easily enhance your Java services as I have 5 years of experience in Java development, Spring, JEE, and JPA. My expertise includes REST and SOAP API integration, performance optimization, and unit testing. Not only this, I have a strong grip on related technologies, ensuring a comprehensive approach to your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Java Development ✅ Spring Framework ✅ JEE ✅ JPA ✅ REST API Development ✅ SOAP Web Services ✅ Code Optimization ✅ Unit Testing ✅ Integration Testing ✅ Documentation ✅ Performance Tuning ✅ CI/CD Pipeline Waiting for your response! Best Regards, Zohaib

@kamran2012

Hello there, I will analyze your Hybris extensions, refactor pain points, and deliver modular improvements across your Spring/JPA services — ensuring backward-compatible REST and SOAP contracts while maintaining or improving response time and memory footprint. One area I will focus on early: auditing the JPA query paths feeding your Spartacus storefront. Poorly optimized fetch strategies in Hybris often cause N+1 queries that silently degrade under load. Fixing these at the FlexibleSearch and JPA level typically yields measurable latency gains before any architectural changes are needed. Questions: 1) Which Hybris version and Spartacus release are you running — and is the CI pipeline based on Commerce Cloud or a custom setup? 2) Are there specific extensions or API endpoints already flagged as performance bottlenecks? Looking forward to discussing further. Best regards, Kamran

@Microlent

Maintaining backward compatibility for your legacy SOAP endpoints while refactoring Java extensions is usually where these Hybris upgrades get complicated. It sounds like technical debt in the Spring and JPA layers is currently acting as a bottleneck for your Spartacus storefront releases. I focus on cleaning up SAP Commerce backends by following strict extension structures rather than adding quick patches. In past enterprise projects, I have streamlined CI pipelines by ensuring unit and integration tests actually catch regressions before they hit staging. I handle the migration of legacy logic into modular services so your in-house team can manage the platform without deciphering undocumented code later. I'll start by auditing your current extension dependencies to ensure memory footprints stay low during the refactor. I can put together a quick optimized Hybris backend architecture for free so you can see the approach first. Rajesh

@corpmember29

HELLO!! I read your requirements carefully and understood very well about the project scope and will work on strengthening and optimizing your Java-based backend services built with Spring, JEE, and JPA. I am having more than 10+ years of experience in backend engineering, enterprise Java development, and scalable microservices architecture, and I can confidently analyze, refactor, and enhance your existing system while ensuring stability and backward compatibility. I will approach this project by first reviewing the current codebase, identifying performance bottlenecks, architectural issues, and extension-level design improvements aligned with Hybris best practices. Then I will implement modular and maintainable enhancements across Spring services, REST/SOAP endpoints, and JPA data layers, ensuring clean separation of concerns and reusability. Strong focus will be given to maintaining CI pipeline stability, preserving API contracts unless explicitly changed, and improving response time and memory efficiency. I will also ensure proper unit and integration test coverage so future upgrades remain safe and predictable. We will follow structured development practices with clear documentation of all changes for smooth handover to your in-house team. I WILL PROVIDE CLEAN, PRODUCTION-READY CODE, FULL DOCUMENTATION OF CHANGES, TEST COVERAGE SUPPORT, AND 2 YEARS FREE ONGOING SUPPORT FOR MAINTENANCE AND ASSISTANCE. I eagerly await your positive response. Thanks

@skalogir

Hello, I hope you're doing well! I understand you need a Java/SAP Hybris backend developer to analyze and improve Spring, JEE, and JPA services with REST and legacy SOAP endpoints while supporting a Spartacus storefront and third-party integrations. I have strong experience with Java backend development, Spring-based services, JPA persistence, API compatibility, modular extension-based architecture, unit/integration testing, and performance-focused improvements for commerce platforms. I will review the current implementations, identify Hybris best-practice gaps, implement maintainable extension-level enhancements, preserve API contracts, improve response time and memory usage where possible, and document all changes for your in-house team. Q1: Which Hybris/SAP Commerce version and Spartacus version are currently in use? Q2: Are the main pain points related to performance, code maintainability, API stability, or integration failures? Q3: Do you already have CI test coverage requirements, or should I help define practical unit and integration test targets? Looking forward to strengthening your backend services and supporting smoother commerce feature delivery!

@intelliresponse

Hello! With over 13 years of experience in full stack development, I am confident that I'm the perfect fit for your project. My proficiency in Java-based Spring, JEE, and JPA services, combined with my experience in developing clean and reusable code, will ensure that your services are not only robust but also future-proof. Apart from this, I have mastered REST and SOAP endpoints to optimally handle your Spartacus-driven storefront and third-party integrations. Through my extensive background in both backend and full stack development, I have gained valuable insight into identifying pain points within existing implementations and proposing effective technical solutions- an essential aspect of your project. Moreover, I fully understand the importance of thoroughly tested code to facilitate smooth upgrades, maintain extensions, and avoid regression errors. Complementing all these is my excellent documentation practice aimed at ensuring long-term maintenance by your team. Choosing me for this project brings you an adept professional with wide-ranging skills who can deeply analyze and effectively implement the needed improvements while keeping the API contracts stable and performance metrics optimized. My ability to deliver a consistent balance between skillfully handling complex backend development and driving new innovative features would be a major asset to your team as we strengthen the backends into a more reliable one together.

@codefusion53

Hi, I can help strengthen your Hybris backend services by reviewing the current Java, Spring, JEE, JPA, REST, and SOAP implementations, identifying bottlenecks or maintainability issues, and delivering improvements that fit the platform’s extension structure and best practices. My approach would be to first analyze the existing services, API contracts, integration points, and CI build behavior, then implement changes in clean, modular, reusable code without breaking backward compatibility. I understand the importance of stable services feeding a Spartacus storefront and third party integrations, so I would pay close attention to regression risk, response times, memory usage, and contract consistency. I can also maintain meaningful unit and integration test coverage, document each change clearly, and make sure the in house team can support the platform long term. The goal will be practical backend improvements that make future commerce features easier and safer to roll out. I would be glad to review the current codebase and functional specifications, then propose a focused improvement plan before implementation. Best, Justin

@Muhammadzeesha59

Hello Sir/MAM I am a skilled full stack developer. Having rich experience in Java , C++ , C , C# , Python , Eclipse , Sql , Mysql , .Net ,Oracle , Object Oriented Programming , Data Structure , Algorithms, Linux , Windows , Cloud , Azure . I have a perfect grip on “Artificial Intelligence” “Automation” , and work in “Machine Learning” Deep Learning ”. My track record as demonstrated in my 100% job completion and 5-star review rating showcases My ability to deliver exceptional results on time and with utmost quality I believe that my skill set makes me the ideal candidate for this project Please come on chat we will discuss more about this I will be waiting for your reply . Thanks and Best Regards

@samarhabib

Greetings, I'm a full stack developer with 10+ years of experience, I have strong experience with Java, Spring, JEE, JPA, REST/SOAP services, and SAP Hybris/Spartacus ecosystems, focusing on performance optimization, clean extension-based architecture, and backward-compatible API enhancements. I can analyze the current implementation, deliver maintainable improvements with solid test coverage, and ensure all changes deploy cleanly through your CI pipeline without regressions. Why work with me? ★ Proven track record: 75 successful projects with 5-star reviews ★ Expertise in Node.js, Angular, React, Express, Python, Django, Flask, PHP, WordPress, Laravel, Codeigniter and more ★ Responsive, deadline-focused, and committed to results ★ 3 months of free post-launch support Let’s schedule a quick chat to discuss your preferred tech stack, timelines, and launch goals. I’m confident I can bring your vision to life. Best regards, Samar H.

@Mobilehead

Hello, I can improve your Java Spring, JEE, and Hybris services to be clean, tested, and maintainable. I will analyze the code, propose Hybris best-practice changes, implement modular extensions, and add unit and integration tests while keeping REST and SOAP APIs stable. All changes will build and deploy in your CI, preserve backward compatibility unless you approve a change, meet or improve performance, and include clear handover documentation. Best regards, Sherman.

@durgesh8527

With over a decade of experience in Full Stack Development plus proficiency in Java, JavaScript, and RESTful API, my mission has always been to transform complex problems into elegant and efficient solutions. The depth of my skills spans across the entire tech stack in demand for this project, from Java-based services with Spring, JEE, and JPA to REST and SOAP endpoints. My work ethic aligns perfectly with the objectives you've outlined: analyzing current implementations to propose improvements that comply with Hybris best practices, implementing those changes within your platform's extension structure in a modular and maintainable way, and conducting thorough testing every step of the way. One aspect that sets me apart is my ability to ensure backward-compatibility while delivering on enhancements. This will be crucial for the success of your project as I understand that maintaining full functionality amidst upgrades is a priority. I am highly experienced in documenting changes clearly for the wider team's understanding and promote smooth collaboration alongside scalable growth. Finally, as someone who always strives to add value beyond just coding, I am equipped to integrate seamlessly into your existing development environment. This means minimal disruption to your CI pipeline while extracting maximum efficiency from it. Let's combine our strengths to bolster your backend so you can roll out new features faster and more reliably!

@tilalHusain

Hey there, Legacy Hybris services usually slow down when service layers, integrations, and tests drift out of sync. That is where I step in and start stabilizing from the inside out. I work with Java ecosystems built on Spring, JEE, and JPA where REST and SOAP run side by side and changes must not break downstream consumers like Spartacus storefronts or third party integrations. My focus is always on clean extension based structure, not scattered fixes, so each improvement fits naturally into the platform’s modular design. In similar setups I have reviewed existing service flows, traced bottlenecks in persistence and API layers, then refactored with backward compatibility in mind. I keep contracts stable unless explicitly changed, and I pay close attention to CI pipelines so builds stay green after every update. Unit and integration tests are part of the change, not an afterthought, so future upgrades do not turn into risk zones. I will document every adjustment clearly so your in house team can extend without guesswork. Share access and I can start by mapping pain points and proposing a concrete improvement plan right away. Best Regards, Tilal

@mahads31

As a seasoned full stack developer with a sharp focus on Java and JavaScript, I feel uniquely positioned to help improve your platform while aligning it with the latest Hybris best practices. I've accumulated a wealth of knowledge working across various industries, delivering innovative and scalable software solutions. My fluency in API Development and Backend Development will allow me to deeply analyze your current implementation, identifying pain points and proposing strategic improvements. I have no doubt that I can implement these improvements with clean, modular and maintainable code following the Hybris extension structure, ultimately assisting in creating a smoother future upgrade path for your project. Lastly, but vitally, my dedication to quality extends beyond the initial development process. I strongly believe in leaving clients with thorough, well-documented changes ensuring seamless handover to an internal team (which correlates perfectly with your acceptance criterion). Additionally, my commitment to performance enhancement will ensure that metrics such as response time and memory footprint are maintained or improved throughout the project lifecycle. Let's work together to strengthen your backend and enhance the roll-out of new commerce features.

@marjanahmed13

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. l believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.

@abdulhamidh2

Hello I just reviewed your project involving Java-based services with Spring, JEE, and JPA for a Spartacus-driven storefront, and it sounds like a great fit for my expertise. Ensuring clean, modular code with thorough testing aligns perfectly with my approach to backend development. I have extensive experience working with SAP Hybris, developing and improving REST and SOAP APIs while maintaining backward compatibility and optimizing performance. I focus on writing maintainable code within platform extension structures and keeping test coverage robust to ease future upgrades. I’d start by analyzing your current implementation to identify pain points and then deliver improvements that pass your CI pipeline without regression. Could you share more about the specific pain points you’ve noticed so far? Best regards, AbdulHamid

@ishudhiman171

Hi, I am interested in your project and have 5+ years of experience in full-stack development, working with Java, Spring Boot, REST APIs, database design, and enterprise applications. I have experience analyzing existing systems, improving performance, maintaining API compatibility, and delivering clean, maintainable code with proper documentation. I can help review your current Hybris/SAP Commerce implementation, identify bottlenecks, enhance service layers, optimize JPA queries, improve API performance, and ensure all changes follow best practices while maintaining backward compatibility. I also understand the importance of unit testing, integration testing, CI/CD stability, and clear documentation for long-term maintainability. I am comfortable working with existing codebases, collaborating with internal teams, and delivering enhancements that improve scalability, performance, and reliability. I would be happy to discuss the current architecture, challenges, and project goals in more detail. Best regards, Ishu