Full-Stack Developer for WebApp to optimize
Budget: $30 – $250 USD
Looking for an experienced full-stack developer to work on a web platform focused on security hardening, performance optimisation, and SEO improvements.
The project involves backend (Node.js / Express / Prisma / PostgreSQL) and frontend (Next.js 15 / React 19) work. A detailed technical audit has already been completed — you will receive a prioritised list of issues with file references, root cause analysis, and recommended fixes. No discovery work needed.
What the work covers:
• Security: fixing authentication gaps, hardening API routes, correcting middleware configuration
• Performance: eliminating N+1 database queries, optimising indexes, improving caching
• SEO: server-side rendering improvements, structured data, metadata
• Code quality: removing dead code, resolving dependency conflicts, minor refactors
Required skills:
• Strong Node.js / Express backend experience
• Next.js App Router (not Pages Router)
• Prisma ORM and PostgreSQL
• Solid understanding of web security fundamentals (auth, CORS, JWT, rate limiting)
• Ability to work from a written brief without hand-holding
• Clean, testable code — no cowboy fixes
Nice to have:
• Experience with Stripe webhooks
• Pusher / real-time features
• Cloudinary uploads
• VPS deployment (not Vercel)
This is a fixed-scope engagement. Looking for someone detail-oriented who reads the brief before asking questions.
The project involves backend (Node.js / Express / Prisma / PostgreSQL) and frontend (Next.js 15 / React 19) work. A detailed technical audit has already been completed — you will receive a prioritised list of issues with file references, root cause analysis, and recommended fixes. No discovery work needed.
What the work covers:
• Security: fixing authentication gaps, hardening API routes, correcting middleware configuration
• Performance: eliminating N+1 database queries, optimising indexes, improving caching
• SEO: server-side rendering improvements, structured data, metadata
• Code quality: removing dead code, resolving dependency conflicts, minor refactors
Required skills:
• Strong Node.js / Express backend experience
• Next.js App Router (not Pages Router)
• Prisma ORM and PostgreSQL
• Solid understanding of web security fundamentals (auth, CORS, JWT, rate limiting)
• Ability to work from a written brief without hand-holding
• Clean, testable code — no cowboy fixes
Nice to have:
• Experience with Stripe webhooks
• Pusher / real-time features
• Cloudinary uploads
• VPS deployment (not Vercel)
This is a fixed-scope engagement. Looking for someone detail-oriented who reads the brief before asking questions.