I will build a node js typescript backend API

J
john_kenny7
J
john_kenny7
John
build a node js typescript backend API
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build a node js typescript backend API

About this gig

I build backends in Node.js and TypeScript that are organised, tested and easy for the next developer to pick up.


Some of what I've built:

  • A sports prediction platform backend with separate player and admin APIs, plus end-to-end tests
  • An authentication API with email verification, password reset, JWT and social login (Google, Facebook, GitHub, TikTok, Instagram)
  • A SaaS API with subscription payments, 2FA, admin roles and Redis
  • Real-time services that index blockchain events into a database


What I can build for you:

  • REST APIs with Express and TypeScript
  • Databases with Prisma and PostgreSQL, MySQL or MongoDB
  • Login and sign-up: JWT, OAuth, email verification, password reset, 2FA
  • Admin APIs with role-based access
  • Payment and third-party API integrations
  • Docker and PM2 setup for deployment


What you get:

  • Clean, typed code with a sensible folder structure
  • Automated tests
  • API documentation and a README


If you already have a frontend or a spec, send it over and I'll build the API to match.

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Programming language

    • TypeScript

  • Frontend framework

    • Next.js

  • Backend framework

    • Express.js
    • Fastify
    • NestJS
    • Node.js

Get to know John

John

FullStack, Blockchain Rust Developer

  • FromNigeria
  • Member sinceOct 2026
  • Avg. response time1 hour

  • Languages

    English, Yoruba
I am a Full-Stack, Blockchain, and Rust Developer building web apps and Web3 projects since 2022. I specialize in smart contracts, NFT marketplaces, and DeFi dashboards, owning projects end-to-end from the API to the frontend. I am proficient in Node.js, TypeScript, and Rust, ensuring high test coverage and clear documentation for every project I deliver.

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