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Programming & Development blockchain, nft, cryptocurrency, tokens

Backend Developer

$15/hr Starting at $28


I build production-grade backend systems for startups and tech teams — specializing in payment infrastructure, Solana blockchain integrations, and scalable REST APIs.

What I bring to your project:

  • Payment Systems — Webhook handlers, transaction pipelines, wallet auth, P2P flows, and bank API integrations built from scratch
  • Solana & Web3 — Wallet connectivity, transaction signing, on-chain payment flows
  • Backend Architecture — Node.js, Express, Next.js API routes, Prisma ORM, PostgreSQL, MongoDB, Redis caching
  • Real-time Systems — WebSocket-based live data, IoT device control via Firebase
  • Infrastructure — Docker, CI/CD pipelines, Cloudflare Workers, Turborepo monorepos, serverless deployments
  • Auth & Security — JWT, Zod validation, CORS, rate limiting, secure API design

Proven track record:
GSoC 2026 contributor with 4 merged PRs in open source. Built a full Solana payment system, a real-time IoT controller, and a digital payment wallet with webhook simulation. Participated in Smart India Hackathon 2025.

I work best with early-stage startups and small teams who need clean, maintainable backend systems shipped fast. I communicate clearly, write documented code, and treat your product like my own.

Tech Stack: Node.js · Express · Next.js · TypeScript · PostgreSQL · Prisma · MongoDB · Redis · Docker · WebSockets · Solana · Cloudflare Workers · JWT · REST APIs



About

$15/hr Ongoing

Download Resume


I build production-grade backend systems for startups and tech teams — specializing in payment infrastructure, Solana blockchain integrations, and scalable REST APIs.

What I bring to your project:

  • Payment Systems — Webhook handlers, transaction pipelines, wallet auth, P2P flows, and bank API integrations built from scratch
  • Solana & Web3 — Wallet connectivity, transaction signing, on-chain payment flows
  • Backend Architecture — Node.js, Express, Next.js API routes, Prisma ORM, PostgreSQL, MongoDB, Redis caching
  • Real-time Systems — WebSocket-based live data, IoT device control via Firebase
  • Infrastructure — Docker, CI/CD pipelines, Cloudflare Workers, Turborepo monorepos, serverless deployments
  • Auth & Security — JWT, Zod validation, CORS, rate limiting, secure API design

Proven track record:
GSoC 2026 contributor with 4 merged PRs in open source. Built a full Solana payment system, a real-time IoT controller, and a digital payment wallet with webhook simulation. Participated in Smart India Hackathon 2025.

I work best with early-stage startups and small teams who need clean, maintainable backend systems shipped fast. I communicate clearly, write documented code, and treat your product like my own.

Tech Stack: Node.js · Express · Next.js · TypeScript · PostgreSQL · Prisma · MongoDB · Redis · Docker · WebSockets · Solana · Cloudflare Workers · JWT · REST APIs



Skills & Expertise

API DevelopmentBlockchainCryptocurrencyDAppDatabase DesignDigital WalletSmart ContractsSoftware DevelopmentSolanaTokensWeb3

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