About

Full-stack developer who builds the software behind trading products and Web3 apps

I'm Mehdi Khosa, a full-stack developer from Pakistan. I studied computer science at GC University Lahore, started in blockchain during an internship at Vanar, then spent a year writing and auditing smart contracts at ArgonTeq. Today I work on production trading platforms as a full-stack engineer and take on freelance projects for startups, funds, and founders around the world.

What I care about is shipping things people actually use. A trading platform has to stay up when the market moves, a wallet flow has to work for someone who has never used one, and a contract has to hold real money without incident. That shapes how I scope, build, and test.

How I work: remote, in English, with a clear written scope and weekly demos. I'm in UTC+5, which overlaps European working hours and US mornings, and I'm reachable on WhatsApp for anything urgent.

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Mehdi Khosa

At a glance

Based in
Pakistan
Time zone
UTC+5 (overlaps EU and US mornings)
Languages
English, Urdu
Focus
Trading platforms, Web3 dApps, smart contracts, bots
Chains
Ethereum, Polygon, BSC, TON, SUI, Solana
Engagement
Fixed-price projects or weekly rate

Experience

  1. XNerds Solutions logo

    Full Stack Engineer

    XNerds Solutions

    Building and maintaining production trading platforms and web applications.

    • Develop trading platforms, signal engines, and Telegram trading bots used by live customers
    • Work across the stack: Next.js frontends, Node.js backends, PostgreSQL, and real-time delivery
    • Collaborate with cross-functional teams on new features, code reviews, and performance work
  2. ArgonTeq Inc logo

    Blockchain Engineer

    ArgonTeq Inc

    Smart contracts, security reviews, and full-stack integration for client Web3 products.

    • Wrote and audited Solidity contracts for EVM chains: tokens, staking, rewards, bridges, and prediction games
    • Built Node.js backends and connected them to Next.js and React frontends
    • Delivered client projects across Ethereum, Polygon, SUI, and TON, several of which are featured on this site
  3. Vanar Blockchain logo

    Blockchain Developer Intern

    Vanar Blockchain

    Hands-on blockchain development on the Vanar network.

    • Built PeoplesDex, a decentralized exchange, with Next.js, Solidity, Hardhat, and ethers.js
    • Worked with account impersonation, custom RainbowKit wallet flows, and ERC-20 integration
    View certificate

Education

Skills

The tools I reach for on real projects.

  • Frontend

    • Next.js
    • React
    • TypeScript
    • Tailwind CSS
    • Material UI
    • Wallet UX

  • Backend

    • Node.js
    • NestJS
    • Express
    • PostgreSQL
    • MongoDB
    • NATS
    • WebSockets
    • REST APIs

  • Blockchain

    • Solidity
    • Hardhat
    • ethers.js
    • OpenZeppelin
    • ERC-20 / 721 / 1155
    • thirdweb
    • Sequence
    • RainbowKit
    • TON Connect
    • SUI Move
    • Solana Anchor

  • Trading & automation

    • TradingView indicators
    • Signal engines
    • Exchange APIs
    • Telegram Bot API
    • Arbitrage bots
    • Forex Expert Advisors

  • Tooling & delivery

    • Git & GitHub
    • Vercel
    • Docker
    • Postman
    • Remix IDE
    • CI/CD

Have a trading platform, dApp, or bot in mind?

Send a few lines about your project. You'll get a reply within one business day, usually much faster on WhatsApp.

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