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I run a growing web-development agency in Bengaluru and need a reliable full-stack engineer who can jump straight into an existing [login to view URL] 15 (App Router) code-base, keep it healthy, and steadily improve it. For at least the first three to six months you will concentrate on maintaining and optimizing existing code rather than building green-field features. That means tracking down bugs, tightening database queries written with Prisma ORM against MySQL 8.0, cleaning up React 19 components, and squeezing more speed out of TailwindCSS-styled pages served behind Nginx. Time commitment starts at 10–15 hours per month; if we work well together I expect that to grow toward 40–60 hours monthly. You will work remotely and independently, but the workflow is structured—Git branches, concise pull-request descriptions, and occasional video check-ins. Initial focus areas • Bug fixing and regression testing across both frontend and backend • Performance tuning (query optimisation, bundle size reduction, caching strategies) • Light CMS support and refactors that modernise older patterns to current best practices Acceptance criteria for each ticket • All automated tests and CI checks pass • No new ESLint, type or Lighthouse errors introduced • Clear, commented commits and a short hand-over note If you are confident with [login to view URL] 15, React 19, Prisma, MySQL, TailwindCSS and Nginx, and you enjoy polishing existing products until they shine, I’d like to hear from you.
Project ID: 40695742
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137 freelancers are bidding on average ₹962 INR/hour for this job

Drawing on my solid career as a Full Stack Developer and AI Solutions Expert, I confidently bring to the table 8+ years of hands-on expertise. Over this period, I've successfully delivered over 200 projects precisely like yours: solving complex tech problems while keeping an unwavering focus on business growth - a philosophy that aligns perfectly with your requirements. Metrics matter and I understand that well. So, you can rely on me not only to track down bugs, but more importantly, to successfully fix them with diligent regression testing across both frontend and backend processes to ensure no new errors are introduced into the system. To top it all off, my communication skills are top-notch, ensuring smooth collaboration in our structured workflow characterized by concise pull-request descriptions and Git branches – both critical in project maintenance. Choose me to entrust this job to – not only will I dedicate meticulous attention to optimizing your existing codebase, but I'll provide long term support post-implementation for optimal results. Let's turn your web applications into swift, scalable marvels that breathe brilliance!
₹750 INR in 40 days
5.5
5.5

Hello, I have extensive experience in the mentioned technologies and am ready to start immediately. Let’s connect via chat to discuss the project requirements further. Thank you, Jignesh
₹750 INR in 40 days
5.3
5.3

Hi, I would like to grab this opportunity and will work till you get 100% satisfied with my work. I just applied after read your job posting carefully and I believe that I am good fit to your project. I'm a serious bidder. I will satisfy you with my high skills! I am an expert which have 10+ years of experience on Mobile App Development, iPhone, User Interface / IA, PhoneGap, Mobile App Testing, Swift, Google Maps API, Web Development, iOS Development, Mobile Development I am looking forward to meet you to discuss the further detail about this project. Looking forward to hearing from you. Warm Regards
₹750 INR in 40 days
5.0
5.0

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹1,000 INR in 40 days
3.1
3.1

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. Happy to share a quick plan if you're open to it. Regards, Rajesh
₹1,000 INR in 40 days
3.1
3.1

The trickiest bit here isn't the bug fixing - it's doing it in a live App Router codebase without introducing new Lighthouse or type errors. My approach: reproduce each ticket locally first, add a regression test before touching anything, then keep the PR small so CI and your review stay clean. For the Prisma/MySQL side I'd profile the slow queries (indexes, N+1 patterns from the ORM) and check what's bloating the bundle before caching anything. I've shipped Node/Next full-stack products and worked plenty with Prisma against MySQL, so the Git branch + PR + handover-note workflow is how I already work. What's the size of the current test suite - is CI already set up, or would part of early tickets be filling gaps there? - Prateek
₹950 INR in 30 days
2.7
2.7

Hello, I'm perfect in maintaining existing projects, tracing bugs, testing edge cases, writing clean well organized code and documenting everything. I'm enjoying that!. I'm a full stack developer with 5+ years of experience. Specialized in Nodejs, React, Nextjs, Laravel and Vuejs. I can start immediately. You will get daily follow-ups and clear communication. If you have any questions or would like to discuss the details, I’d be happy to chat. Looking forward to working with you!
₹750 INR in 20 days
2.4
2.4

I’m interested in this because a large part of my work involves maintaining and improving existing production applications rather than only building greenfield projects. My background includes React, Node.js, MySQL, REST APIs, Nginx, Git and full-stack performance/debugging work. I’m comfortable tracing issues across frontend components, backend services, database queries and deployment configuration rather than treating each layer independently. For your current application, I can handle React component cleanup, MySQL query optimisation, API/backend debugging, bundle/performance improvements and regression fixes while following your Git branch and pull-request workflow. My strongest ORM/database experience is with Eloquent/Mongoose and MySQL rather than Prisma specifically, but the relational concepts and query optimisation work transfer directly, and I’m comfortable working within an existing Prisma schema. I also like that this is maintenance-focused and potentially grows from 10–15 to 40–60 hours monthly. My proposed rate is ₹870/hour.
₹870 INR in 40 days
0.0
0.0

I’m a Computer Science student and Full-Stack Developer skilled in Java, Spring Boot, React.js, JavaScript, SQL, and REST APIs. I build responsive, scalable web applications with clean and user-friendly interfaces. I’m interested in developing real-world web applications, backend APIs, AI-powered features, and automation solutions. I’m available for website development, portfolio websites, full-stack applications, REST API development, and AI integration projects.
₹800 INR in 10 days
0.0
0.0

Bengaluru, India
Member since Sep 7, 2026
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