finds bugs

@chandankandar007

As an experienced full-stack developer with over 13 years of hands-on expertise, I have spent extensive hours resolving issues, expanding functionality and making performance improvements in existing web applications. Given immediate access to your repo and database files, I guarantee to diagnose and address all the pain points in your current architecture, ensuring that your data layer performs reliably under heavy loads. With my diverse skill set in Node.js, Django, and Ruby on Rails, working within any modern environments you've adopted like this would be second nature to me. My proficiency in PHP (including Core PHP, Laravel and CodeIgniter), APIs, payment gateways and system architecture makes me the ideal candidate for this project. This is further reinforced by my experience working with large databases such as MySQL, SQLite and MongoDB. Moreover, I am a strong advocate for clean and well-tested codes. I will provide thoughtful refactors where necessary if they offer real performance or maintainability gains and ensure that my changes are accompanied by up-to-date documentation for easy understanding of what has been done. My previous projects demonstrate that my pull requests pass CI pipelines ending with smooth deployment to staging without any regression error. I'm confident that my troubleshooting problem-solving skills coupled with clear communication will add immense value to your team. Let's get started!

@hareshfinadiya

Hi, I am Haresh, having 14+ years of experience in Software Testing Industry. - Having unique blend of knowledge in Quality Product Delivery, Processes Management, Functional testing, Integration and regression testing, load and Perfromance Testing which help me to take the Quality of the software to the next level. - Hands on experience on testing Desktop, Web Based, Mobile application and ERP based application. - Hands on experience on automation testing tools on selenium webdriver, jmeter, katalon studio, Appium, cypress, selenium with TestNG freamwork etc.. - Thorough understanding of Product Delivery Life Cycle, Software Testing Life Cycle and Software Development Life Cycle. - Experience in Well conversant with writing Test plan,Test Cases,Bug report, Release Note and Product Health Report. - Worked in various domains like Finance, Retail, Web Portals, Healthcare, ecommnerce, CMS, Eduction Portal, Life Insurance, ERP system etc. - I do have require mobile devices to test mobile view or applications like android and iOS applications. - I have hands on experience with Git, postman, MSSQL Server. Kindly review my profile and let me know you view over the same. Thanks, Haresh

@mayankinnovative

Hi, As per my understanding: You need a backend developer to quickly onboard into your existing codebase, resolve current issues, extend server-side functionality, and ensure the database layer performs reliably under load while maintaining clean, testable, and well-documented code. Implementation approach: I’ll begin with a focused codebase and DB review to understand architecture, bottlenecks, and failing areas. Based on your prioritized tickets, I’ll implement fixes and enhancements following existing coding standards. I’ll introduce targeted refactors only where they improve performance or maintainability. Each change will include unit/integration tests to protect critical paths, and all PRs will be CI-compliant for smooth staging deployment. I’ll also document setup, endpoints, and logic clearly to support long-term maintainability and team collaboration. A few quick questions: Which stack is currently in use (Node, Django, Rails)? What are the main performance pain points right now? Do you have existing test coverage or should I expand it from scratch?

@ViktorTrefilov01

✨✨✨✨✨ Hi, I can start working right now. I have experience in manual testing and bug hunting, including identifying UI/UX issues, broken flows, and edge-case failures while documenting bugs clearly with screenshots and structured reports. I’m a reliable and detail-oriented tester, ready to thoroughly test your platform, simulate real user scenarios, and deliver accurate bug reports following your required format. Regards,

@Hemantt841

Ensuring the stability and scalability of your production web application’s backend requires not only identifying and fixing bugs but also enhancing the architecture to handle load efficiently while maintaining clean, maintainable code. Your need for a developer who can immediately integrate with the existing codebase and database, troubleshoot issues, and extend functionality with precision aligns perfectly with a focused, methodical approach to backend refinement and optimization. Understanding the critical nature of seamless data flow and robust API endpoints is central to delivering the reliability and performance your users expect. Leveraging expertise in modern backend frameworks such as Node.js, Django, or Ruby on Rails, combined with a strong command of JavaScript and database management, the approach will emphasize writing clean, well-tested code that integrates smoothly into your architecture. Automated testing will cover all critical paths to prevent regressions, while thoughtful refactoring will be applied selectively to improve performance and maintainability without disrupting existing workflows. Comprehensive documentation and adherence to your CI/CD pipeline standards will ensure every change is transparent and deploys without friction. Committed to delivering high-quality results on schedule, the work will begin with a thorough walkthrough of your architecture and prioritized tickets to align on goals and expectations. Clear, ongoing communication will keep you informed of progress, and rigorous testing will guarantee that new or modified endpoints meet agreed performance targets. Let’s collaborate to enhance your backend’s robustness and functionality—ready to dive in as soon as access is provided.

@amaank66

You already have the hardest part in place—a live codebase and data layer. What you need now is precision: someone who can step in, stabilize, and scale it without disruption. That’s exactly how I work. I specialize in backend systems where performance, clean architecture, and reliability matter. I’ll quickly get familiar with your repo, identify bottlenecks, and start resolving issues while keeping everything aligned with your existing structure. **How I’ll contribute:** • Debug and stabilize current endpoints with measurable performance improvements • Extend functionality with clean, testable code (Node/Django/Rails ready) • Add/strengthen automated tests across critical paths • Refactor only where it delivers real gains (no unnecessary rewrites) • Ensure every PR passes CI and deploys smoothly to staging • Maintain clear, updated documentation (README + inline) I work sprint-based, communicate clearly, and keep changes predictable—so your system evolves without regressions. **Availability:** Immediate start **Approach:** Dive in → audit → execute tickets → optimize progressively If you need someone who can own backend stability and performance from day one, I’m ready. Best regards, Amaan Khan L. (CUBEMOONS PVT.)

@mariamz24

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on JavaScript, Software Testing, Backend Development, Database Management, API Development, API Integration Please come over chat and discuss your requirement in a detailed way. Regards

@kunalk229

With a team as dedicated and experienced as ours at VeltrionyxAI, you can count on us to approach your project head-on. Over the years, we've built and tested various modern web applications, utilizing stacks like Node.js, Django, and Ruby on Rails - exactly what you're looking for! Our expertise in backend development and focus on clean, well-tested code make us the perfect candidate to tackle bugs in your application. We take pride in our ability to identify problems accurately and fix them swiftly, ensuring optimal performance every step of the way. Beyond troubleshooting, we offer refined refactoring capabilities to enhance both performance and maintainability. Building on that, we place great value on comprehensive documentation. This means that not only will your new code be diligently integrated with the current database files, but any changes made will be meticulously documented. And don't worry about the actualized changes falling through - passing your CI pipeline and seamless deployment is our specialty. All of these are supported by our holistic approach to QA Automation which includes regression testing and API validation. In summation, with VeltrionyxAI you're not just getting a team of programmers; you’re getting a focused and hardworking solution provider at every step of the process who'll expertly address bugs while focusing on increasing your application's reliability under load. We look forward to being part of your successful project journey.

@aryanr480

I have worked as full stack developer in many projects and solved real life problems in projects. Now i am workin as backend engineer but i also have experience in developing full stack projects. I also have team for both frontend and backend. so we are charging 25k for this and i'll deliver this in 10 days.

@dmitrygnedoj

Hi, I’m confident I can dive into your existing codebase and deliver reliable back-end improvements from day one. With solid experience across Node.js, Django, and Rails, I specialize in debugging production issues, extending APIs, and optimizing database performance while keeping code clean and maintainable. I will start by reviewing your repository, database, and walkthrough notes to quickly identify bottlenecks and critical issues. Next, I will work through your prioritised tickets, implementing fixes and new endpoints with proper test coverage and performance validation. Finally, I will refactor where it adds real value, ensure all PRs pass CI, and update documentation for every change to support smooth staging deployment. I take pride in writing well-tested, production-ready code and maintaining clear communication throughout each sprint. My focus is to meet your performance targets, avoid regressions, and ensure your system remains stable under load. Let’s align on the first sprint priorities so I can get started immediately and contribute effectively.

@rishus875

Are you looking for a reliable software developer to bring your idea to life? You're in the right place! I specialize in building high-quality, scalable, and efficient software solutions tailored to your business or personal needs. Whether it's a web application, desktop software, or backend API, I ensure clean code, performance, and user-friendly design. ? What I can do for you: Custom software development Web application development (frontend + backend) RESTful API development & integration Bug fixing & performance optimization Database design and management Automation tools & scripts ? Technologies I work with: Languages: Python, JavaScript, Java, C++ Frameworks: React, Node.js, Django, Flask Databases: MySQL, PostgreSQL, MongoDB Tools: Git, Docker, AWS (basic cloud deployment) ? Packages Basic – Starter Fix ($10–$30) ✔ Small bug fixes or minor feature ✔ 1 revision ✔ Delivery in 1–2 days Standard – Development ($50–$150) ✔ Small application or API ✔ Clean, documented code ✔ 2–3 revisions ✔ Delivery in 3–5 days Premium – Full Project ($200+) ✔ Complete custom software/web app ✔ Scalable architecture ✔ Documentation + support ✔ Unlimited revisions (within scope) ✔ Delivery in 7–14 days

@sethh100

Back-end problem solving is exactly where I operate whether that's tracking down a subtle query bottleneck, extending an API cleanly, or refactoring a data layer that's grown brittle over time. What you'll get from me: I will start right away. Give me repo access and a database dump and I'll have a working local environment and a list of questions within hours, not days. Code that fits. I write to the conventions already in the codebase, no alien patterns, no unnecessary abstractions. Tests that matter. I focus coverage on critical paths and edge cases, not just line-count metrics. Clean PRs. Descriptive commits, updated docs, and nothing that surprises your CI pipeline. I'm comfortable across Node.js, Django, and Rails — and I adapt quickly to whatever stack you're running. Once I see the architecture, I can flag quick wins alongside the longer-term fixes so you get visible progress early. I take clear, prioritised tickets seriously and communicate blockers early rather than going quiet. If that's the working style you're looking for, I'd like to start with a walkthrough whenever you're ready.

@hemant2011414213

Hello, This is exactly the kind of work I enjoy—diving into an existing codebase, fixing what’s broken, and making it faster, cleaner, and more reliable without unnecessary disruption. Since you already have the source code and database ready, I can start immediately and focus purely on what matters: stability, performance, and maintainability. What you can expect from me: Quick onboarding into your architecture with minimal hand-holding Clean, production-ready code that aligns with your existing structure Smart refactoring only where it adds real value (no over-engineering) Well-documented changes (README + inline where needed) PRs that are structured, review-friendly, and CI-safe How I’ll approach your project: Identify and resolve current bottlenecks and bugs first Optimize database queries and API performance where needed Ensure all critical flows are covered with reliable tests Maintain strict regression safety for smooth staging deployments I’m comfortable working across modern backend stacks like Node.js, Django, and Rails, so adapting to your environment won’t be an issue. Clear communication, consistent updates, and delivering exactly what’s agreed—no surprises. If you’re looking for someone who can step in and start contributing from day one, I’m ready. Let’s get your backend running exactly the way it should.

@rishabhKu28

Hi, I’d love to help you stabilize and enhance your backend system. I’m a backend-focused developer with solid experience working on production-grade applications, debugging complex issues, and improving performance at the data and API layers. I’m comfortable diving into an existing codebase and getting productive quickly. Whether it’s troubleshooting current issues, optimizing database queries, or extending endpoints, I focus on writing clean, maintainable, and well-tested code that integrates smoothly with the existing architecture. You can expect: • Clear and consistent progress updates • Well-structured pull requests that pass CI/CD pipelines • Thoughtful refactoring only where it adds real value • Proper documentation for every change I have hands-on experience with backend technologies like Java (Spring Boot), REST APIs, MySQL, and I’m adaptable to environments like Node.js, Django, or Rails. I’m confident I can meet your acceptance criteria and contribute effectively from day one. Looking forward to discussing the project in more detail. Best regards, Rishabh Kumar

@sanjeev1xy

Hi, I have read your project description and clearly understand your requirements. I am ready to start working on your project immediately and will deliver high-quality results within the agreed timeline. Please feel free to message me so we can discuss the project in more detail. I also invite you to review my 5-star ratings and portfolio. You will see positive feedback from many of my previous clients. Thank you for your consideration. I look forward to hearing from you soon.

@lucast279

The job description mentions troubleshooting current issues and extending backend functionality — that is exactly what I do daily. I work with Django, Node.js, and FastAPI, and I am comfortable diving into unfamiliar codebases. My approach: 1. Clone the repo, set up locally, reproduce reported issues 2. Trace root causes using logs, debuggers, and systematic testing 3. Fix with minimal, clean changes — no unnecessary refactors 4. Write tests for critical paths, ensure CI passes 5. Document every change clearly I can start immediately and will communicate progress on each ticket. Simple fixes same-day, complex ones within 48h with clear status updates. What CI/CD pipeline are you using, and are there existing tests I should be aware of?

@devsurajkp

I have experience working on a hotel SaaS platform where I conducted 200+ API endpoints related to security issues. If this aligns with your requirements, let’s connect and get started.

@podurysravani

Hi, I’m very interested in supporting your backend-focused project. While my core expertise is in QA and testing, I specialize in validating backend systems, APIs, and data integrity, which can add immediate value to your development process. With 5+ years of experience, I can help you by: • Testing and validating API endpoints to ensure correct data and performance • Identifying root causes of backend issues through detailed analysis and reproducible test cases • Performing regression testing to ensure no breakages after code changes • Verifying database integrity, workflows, and edge cases under different scenarios • Supporting your team by ensuring all critical paths are well-tested before staging I also have exposure to modern environments and can comfortably work alongside Node.js/Django/Rails-based systems from a testing and validation perspective. What you can expect from me: • Clear bug reports with exact reproduction steps and impact analysis • Thorough testing aligned with your acceptance criteria • Quick turnaround and consistent communication • Strong focus on quality, stability, and user impact I understand that backend reliability and performance are critical, and I can help ensure your releases are stable, error-free, and production-ready. I’m available to start immediately and would be happy to discuss how I can best support your team. Thanks, Nagasravani

@kirans418

You don’t just need a developer you need someone who can jump into your existing system, fix issues fast, and make it perform flawlessly under pressure. That’s exactly what I do. I’m a Full-Stack Architect with 3+ years of experience in high-performance backends and distributed systems, and I specialize in: ✔ Debugging complex production issues ✔ Optimizing APIs and database performance ✔ Writing clean, testable, production-ready code - What You’ll Get Immediate impact from day one Clean PRs that pass CI without friction Smart refactors that actually improve performance Strong test coverage on critical paths Clear, useful documentation I don’t overcomplicate things I fix what matters, improve what counts, and keep your system stable and scalable. - Why I Stand Out I’ve built and optimized systems using Node.js, distributed architectures, and high-load databases, so working inside an existing production environment is second nature to me. Let’s Get Started Give me access to your repo, and I’ll start delivering results immediately. If you want reliability, performance, and zero headaches let’s talk.