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Fiverr Pro
English
$
USD
I will develop backend API and do the deployment
Zaid Naeem
About this gig
Need a Node.js backend developer for an API that holds up under load?
I build REST and GraphQL backends in Node.js, NestJS and Express pipelines handling 15 million records and APIs behind platforms with 60,000+ users.
WHAT I BUILD
- REST and GraphQL APIs with clean, documented, testable architecture
- Authentication: JWT, OAuth2, refresh tokens, role-based access control
- Database design and optimisation in MongoDB, PostgreSQL, MySQL
- Stripe and PayPal integration with webhooks and reconciliation
- Real-time backends with Socket.IO and server-sent events
- Background jobs, schedulers, queues and email pipelines
- Performance work: slow queries, memory leaks, N+1 problems
- Third-party API integrations and data migrations
MY STACK
Node.js · NestJS · Express · TypeScript · MongoDB · PostgreSQL · MySQL · Prisma · Mongoose · Redis · Socket.IO · AWS S3 · Docker · ASP.NET Core
PROOF
Rebuilt a sitemap generator to handle 15M+ records without running out of memory.
Cut a PDF certificate pipeline from 12 seconds to 2-3 seconds with browser pooling and caching.
Send me your API spec or a description and I'll scope it before you order.
Get to know Zaid Naeem
Zaid Naeem
Full Stack Developer AI SaaS MERN and Nextjs Platforms
- FromPakistan
- Member sinceJul 2016
Languages
Urdu, Punjabi, English
I build AI-powered SaaS platforms and full stack web apps that reach production, not demo day.
4 years, 10+ shipped products for clients in the US and Middle East: an Arabic publishing platform at 10,000+ monthly users and 1,000+ paid subscribers, an AI construction intelligence platform with four role-based dashboards, and a multi-tenant property SaaS with 4-tier access control.
Next.js, React, TypeScript, Node.js, NestJS, MongoDB, PostgreSQL, Stripe, AWS. AI: OpenAI, Gemini, RAG.
I lead a 5-person team and handle client communication myself, so scoping is honest and delivery is on time.
My Portfolio
Other Software Development Services I Offer
FAQ
Do you write documentation?
Yes. Swagger or Postman collections for every endpoint, plus a README with setup steps and environment variables. Included in all packages.
Can you optimise my existing slow backend?
Yes, and it is some of my favourite work. Slow queries, missing indexes, memory leaks and N+1 problems. Send me the repo and I will profile it before quoting.
Which database should I use?
MongoDB suits flexible, document-shaped data; PostgreSQL suits relational data with strong consistency. Tell me what you are storing and I will make a recommendation rather than a default.
Do you write tests?
Unit and integration tests are included in Premium and available as an extra on other packages. For anything handling payments I strongly recommend them.
Can you connect to third-party APIs?
Yes. Payment gateways, logistics, CRMs, email providers and custom partner APIs, with webhook handling and retry logic so failures do not silently lose data.
