Full-stack project primarily a backend (Java) evaluation

@belotefreelancer

"I have gone through your description. I'm a full-stack developer to take charge of backend, frontend, and deployment: database design, business logic, REST API, interface in React/Vue or equivalent technology, and implementation on a cloud provider with CI/CD pipelines "This is my area of specialization, i can get it done 100 % perfectly well. Please ping me in person. I can help you to complete all tasks. I have hands-on experience in this field. We have already done similar types of projects. Connect with us for more details. Rest assured your satisfaction is guaranteed." Looking forward to your response." Thank you for your time and I am confident that we will be a great fit for this project. Best,

@albertc1996

Hi there, I went through the details and the stack is pretty clear. React on the front, Node as the gateway, and Spring Boot handling the real logic on the backend — all good. I’ve worked with similar setups before and I’m comfortable jumping into an existing codebase, fixing whatever breaks, cleaning up validation and error handling, and making sure the APIs behave the way they should. Testing through Node or React won’t be an issue. I don’t think this will take too long either, the flow is straightforward once you get familiar with the structure. If you want, I can start checking the code and get everything stable. Just send me a message and we can go over the details.

@mcfarhat

Hi there, With 20+ years of experience in front-end and back-end development, I provide high-performance, scalable solutions tailored to your needs. I specialize in building robust architectures and seamless user interfaces that drive results. Why choose me? 20+ Years Expertise: Deep mastery of the full development lifecycle. Full-Stack Proficiency: Expert front-end and back-end integration. Reliability: Clean, maintainable code delivered on time. Let's discuss how I can bring your vision to life!

@srdank001

Hello, thank you for the opportunity. Your project clearly focuses on strengthening the backend while maintaining a clean flow across React, Node/Express, and a Spring Boot core, and this layered architecture is something I’ve worked with extensively. I have strong experience in Java backend development using Spring Boot, where I’ve handled API design, validation, structured error handling, and logging, while ensuring code quality and maintainability in existing codebases. In similar setups, I’ve worked on systems where a Node.js layer acts as an API gateway, forwarding requests and handling edge logic, while the Java backend manages core business rules and data processing. I’m comfortable tracing data flow end-to-end, debugging across layers, and testing APIs using frontend or tools to ensure everything works seamlessly. For this project, I would focus on understanding the current structure quickly, improving stability, and making precise updates without disrupting existing functionality. My goal is to ensure reliable API behavior, clean backend logic, and smooth communication between all layers. I’d be glad to review your codebase and contribute effectively from the start. Thank you.

@haitham1996

Hello,I’m a Software Engineer Udacity certified in Full Stack Web Dev(Java and Python) and Data Analysis track with over 4+ years of experience building scalable backend systems, RESTful APIs, and automation solutions using these tracks including Java (Spring Boot), Python/Django, and modern low-code tools like N8N. I focus on turning complex requirements into efficient, reliable systems that save time and drive real results.

@mobiwebsolutions

✋ Hi There!!! ✋ The Goal of the project:- ENHANCE AND MAINTAIN AN EXISTING FULL STACK SYSTEM WITH JAVA SPRING BOOT BACKEND NODE JS GATEWAY AND REACT FRONTEND ENSURING STABLE DATA FLOW AND API RELIABILITY I have carefully read your requirement for working on an existing architecture involving React frontend, Node.js middleware, and Spring Boot backend with focus on API development, validation, and debugging. I am the best fit for this project because I have 9+ years experience as a full stack developer working across Java, Node.js, and React based systems with strong debugging and API expertise. * API development and enhancement in Spring Boot with validation, logging and error handling * Debugging and maintaining smooth data flow across React, Node.js and Java layers * API testing and integration support using Node or React with performance checks I will provide backend improvements, API optimization, database handling, testing, and full source code support with proper documentation. I have worked on similar multi layer architectures involving Java backends and Node gateways. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@mihajlodjokic

Let me get it done, I’ll debug and enhance the existing codebase, focusing on API validation and error handling. Your project will be finished in 3-5 days, I have built similar systems when working with Java and Node.js development teams. Here is how I would approach it: 1. I can provide a demo upon request. We’ll meticulously review the architecture and requirements. 2. I’ll prioritize API validation and robust error handling implementation. 3. I’ll implement comprehensive logging for debugging and monitoring. 4. I’ll ensure high code quality through thorough testing. 5. I’ll address any specific questions regarding the codebase. Let’s talk as soon as possible and get it done. Best Regards, Mihajlo

@Ebendewater

I focus on delivering work that’s done properly, clear, polished, and aligned with exactly what you need. As a new freelancer I’m focused on building my reputation, so I offer competitive rates while putting in extra effort to ensure high quality results, reliable communication, and work I stand behind. I also offer 6 months free maintenance and unlimited revisions. With my profound expertise in both Java and Node.js built over the years, I'm well-suited for your project. Your requirement for a backend evaluation aligns perfectly with my primary domain of Java Backend Skills encompassing API development, Validation, Error handling, Logging and Code quality among others. Additionally, I've acquired substantial experience working with frontend-backend-backend architecture similar to that needed for this task.

@Sadiyasyeda24

Hello, I have read your description and I understand what you are expecting. I am an expert with 4 years of experience in Java, Node.js. Check my profile for portfolio and reviews. Looking forward to your reply. Warm regards, Syeda Tahreem

@Manmathl17

As an experienced full-stack developer with expertise in Java, Node.js, and React.js, I possess the necessary skills to excel on your project. Having successfully completed similar endeavours, I fully understand how data flows and can utilize this knowledge optimally for your backend evaluation. One of my greatest qualities is the ability to troubleshoot issues effectively when they arise, so you can rest assured that your existing codebase will be well taken care of. Throughout my work in API development, I have extensively implemented concepts like validation, error handling as well as logging for ensuring utmost code quality. This translates to not only a sound Backend foundation but also a smooth integration ensuring seamless Frontend-to-Backend communication flow using React and Node.js as required by the Middle Layer and Backend of your system. Moreover, being skilled in Cloud computing & AWS deployment qualifies me to efficiently handle the core business logic and data management part of your project using Spring Boot. All in all, my versatility across multiple domains coupled with tidiness and scalability of my work makes me the an ideal partner for you to achieve real digital results at the end of this project. Let’s get to work immediately!

@mihailk21

❤️Hi, Client. I am full-stack developer experienced in React, Node.js (Express), and Spring Boot architectures, and I can efficiently work on your existing multi-layer system while ensuring stability and clean data flow. @My Approach: - Analyze current data flow (React → Node API Gateway → Spring Boot) to quickly understand request/response handling - Debug and fix issues across layers, including API validation, error handling, and logging improvements - Enhance Java backend (Spring Boot) with clean validation, structured responses, and maintainable code practices - Test APIs using Postman/React integration and ensure smooth communication between frontend and both backends I understand the importance of keeping the architecture intact while improving reliability, readability, and performance across all layers. @Question: Could you share access to the repositories and clarify the main pain points (bugs, performance issues, or new features)? Looking forward to helping you stabilize and improve your system with clean debugging, solid backend practices, and seamless integration.

@Workkai

Hello, I carefully read your project about comparing two Excel files and matching Name and Street Address to add the Precinct number. I can complete this task accurately using Excel functions and careful data checking. I will review both files, match the correct records, and ensure the precinct numbers are added correctly even if the address formats differ. I am ready to start immediately and can deliver clean and accurate results. Thank you.

@Nayanmarthak53

Hi, I have read your project details and I understand the flow between React, Node.js, and Spring Boot. I have experience working with Java (Spring Boot), Node.js, and React. I can help in fixing issues, testing APIs, and understanding the data flow between frontend and backend. I am comfortable working on existing code and can debug problems if something is not working properly. I am ready to start and learn as needed for the task. Let’s discuss further. Thank you.

@am2k1

I have 3 years of work experience with Java and 5 years of experience with React, plus decent experience with Node.js, so I think that I could contribute to this project.

@bhagwatij

Hello there, I would like to help out with this task. With my vast experience I can help validate and fix the code to get you to the finish line. Java/Spring Ecosystem are my strong areas of expertise and helping with front end is always part of my skill set. If you would like to discuss further lets connect. Thanks, bhagawathi

@arshkumar213

✅ Hi, hope you’re doing well! I’ve worked on **multi-layered architectures (React → Node → Java/Spring Boot)** where debugging, API flow understanding, and stability across layers are critical. Your setup is clear, and I’m comfortable working within an **existing codebase**. --- ### ? Approach: ⭕ Analyze current data flow across React → Node (API Gateway) → Spring Boot ⭕ Debug issues in API forwarding, validation, and response handling ⭕ Improve error handling, logging, and API consistency ⭕ Test endpoints using Postman/Node scripts and frontend integration ⭕ Ensure clean communication between layers (headers, payloads, status codes) ⭕ Refactor where needed to maintain code quality and stability --- ### ❓ Questions: ❓ What kind of issues are you currently facing (bugs, performance, integration)? ❓ Any specific module (users/tasks) needing priority? --- ### ? What I deliver: ✔ Bug fixes + stable API flow ✔ Improved validation & logging ✔ Clean, maintainable code updates --- ⏱️ Timeline: Quick turnaround based on task scope ? Cost: Within your budget I can jump in quickly and start debugging right away. Best regards, Arsh

@rounakkeshri000

Hello, I went through your project description and it aligns well with my experience in full-stack development using React, Node.js, and Java (Spring Boot). I have a clear understanding of multi-layer architecture (Frontend → API Gateway → Backend) and have worked on similar systems where data flows across services with proper validation, logging, and error handling. Here’s how I can contribute to your project: Efficiently work on your existing codebase without breaking functionality Debug and fix issues across React, Node.js, and Spring Boot layers Ensure smooth API communication between frontend and backend Implement proper validation, error handling, and logging Test APIs thoroughly using tools and custom scripts I am comfortable with: React.js for frontend development Node.js + Express for API handling Java Spring Boot for backend logic Maven-based project structures I focus on writing clean, maintainable code and ensuring that the system runs reliably end-to-end. I am ready to start immediately and can deliver quality work within your budget. Let’s discuss your requirements in more detail.

@Subham3001

Hi, This setup is very familiar to me, and I’m comfortable working across the full flow you described—React → Node.js (API layer) → Spring Boot backend. I have solid experience in Java backend development using Spring Boot, including API development, validation, error handling, logging, and maintaining clean, production-quality code. I’ve also worked on systems where a Node/Express layer acts as a gateway between frontend and backend, so debugging across layers and tracing data flow is something I handle regularly. Here’s how I can help: * Understand and work within your existing codebase quickly * Debug issues across frontend, Node API layer, and Java backend * Improve API structure, validation, and error handling * Ensure proper logging and maintainable code practices * Test and verify APIs using frontend (React) or tools like Postman * Suggest improvements where needed without disrupting current functionality I’m comfortable jumping into ongoing projects and contributing immediately while keeping the system stable. If needed, I can also help streamline communication between layers and improve overall flow and reliability. Available to start right away. Let’s connect and go through the current setup. Regards, Subham

@ssivaunleashnow

Senior software engineer. Good experience on required skills like java python node js programming, having a good experience in debugging skills on different issues. Developed rest and graphql.