u
usmankhan78677

Usman K

@usmankhan78677

Senior Blockchain Engineer, EVM, Solana and AI Web3 Developer

Paquistão
Inglês, Urdu
Algumas informações são exibidas no idioma inglês.
Sobre mim
Hi, I'm Usman Khan, a Senior Full-Stack Blockchain Engineer with 5+ years building Web3 dApps, smart contracts, and automation systems across Ethereum, Solana, Tron, and Stellar. What I Build: • Smart Contracts: Solidity, Rust (Solana), Rust (Stellar), DeFi, DAO • Web3 & AI Automation: Trading Bots, Web3 Integration, Payment Gateways • Launchpads & RWAs: Tokenomics, Bonding Curves, Marketplaces • Full-Stack: Next.js, React, Node.js, PostgreSQL • AWS, Azure, Docker, CI/CD I deliver secure, production-grade code from contract to deployment. Message me to start!(Message before placing an order)... Saiba mais

Habilidades

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usmankhan78677
Usman K
offline • 
Tempo médio de resposta: 1 hora

Conheça meus serviços

Design da Moeda e Tokenização
I will deploy your erc20, bep20, or trc20 token with custom smart contract
A partir deUS$ 100 /projetoMais detalhes
CI/CD
I will set up your server, deploy your app, and configure ci cd pipeline
A partir deUS$ 100 /projetoMais detalhes

Portfólio

Experiência profissional

Kaizen_Global

Senior Full-Stack Blockchain Engineer / Team Lead

Kaizen Global • Período integral

Jan 2022 - Present • 4 yrs 7 mos

Led end-to-end delivery of blockchain products from smart contracts to production frontends. Designed and deployed custom Solidity contracts including ERC-20, ERC-721, ERC-721A, and ERC-1155 tokens for marketplaces, wallets, voting, and e-commerce. Built React and Next.js frontends with Node.js backends integrated with Ethers.js for minting, trading, and on-chain data flows. Led code reviews, architecture decisions, and mentored junior developers while managing client timelines. Key projects: - Guess.meme — Pump.fun-style memecoin launch platform with bonding curve mechanics on Solana and Ethereum. Built token creation flow, bonding curve pricing, automated liquidity migration, real-time trading UI, admin panel, and leaderboard. - Smart contract audits — Manual security review of BEP-20 tokens, multisig wallets, and DeFi contracts using Slither, Mythril, and manual code review against SWCRC checklist. Delivered vulnerability reports with severity ratings, exploit scenarios, and gas optimization recommendations. Stack: Solidity, Rust, React, Next.js, Node.js, Hardhat, Foundry, AWS, Docker.

BLOCKCHAIN_SHERPA — London (Remote)

Blockchain Engineer

BLOCKCHAIN SHERPA — London (Remote) • Período integral

Feb 2023 - Dec 2023 • 10 mos

Honed smart contract auditing skills across multiple blockchain projects. Developed and audited Solidity contracts for DeFi modules, raffle systems, and cross-chain integrations. Built Chainlink oracle integrations for real-time price feeds and automation. Implemented LayerZero cross-chain proof of concept for multi-chain token transfers. Large-scale raffle system project with complex drawing mechanics, winner selection, and prize distribution. Converted Figma designs to production-ready React and Next.js frontends integrated with smart contracts. Stack: Solidity, Rust, React, Next.js, Node.js, Ethers.js, Chainlink, LayerZero, Hardhat.