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$
USD
I will develop, audit, and deploy smart contracts on ethereum, solana, and bnb c
Full Stack and Rust Backend Engineer Scalable Production Systems
Hi, I’m Muhammad Salal Qadir, a Rust Systems Engineer, Backend & Mobile App Developer with 7+ years of experience building high-performance, secure, and scalable systems for startups and production pl...
About this Gig
Expert Smart Contract Developer | Ethereum · Solana · BNB Chain · Polygon
With 5+ years of hands-on blockchain experience, I build secure, gas-optimized, and production-ready smart contracts for startups, enterprises, and Web3 projects.
What I offer:
ERC-20, ERC-721, ERC-1155 token contracts
DeFi protocols DEX, staking, yield farming, lending
NFT minting contracts with whitelist, royalties & metadata
DAO & governance contracts
Cross-chain bridge contracts
Solana programs (Anchor / Rust)
BNB Chain & Polygon deployments
Smart contract audits & security reviews
Upgradeable contracts (OpenZeppelin proxy patterns)
Full test suite (Hardhat / Foundry)
Security first: all contracts go through rigorous testing and follow best practices to prevent reentrancy, overflow, and access-control vulnerabilities.
Every delivery includes:
Fully documented, clean source code
Deployment scripts
Unit tests with 90%+ coverage
ABI & bytecode
Post-delivery support
Whether you're launching a DeFi protocol, an NFT collection, or a DAO I've got you covered. Message me before ordering to discuss your project requirements.
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
FAQ
Which blockchains do you support?
I work across Ethereum, Solana, BNB Chain, Polygon, Avalanche, and Arbitrum. If you need a specific chain, just ask before ordering.
Do you provide a security audit?
Yes. All Standard and Premium packages include a manual security review covering reentrancy, access control, overflow, and common attack vectors. A written audit report is included in the Premium package.
Will you deploy the contract for me?
Yes, I can handle mainnet or testnet deployment. Deployment costs (gas fees) are covered by the client and are not included in the gig price.
Can you work with an existing codebase?
Absolutely. I can audit, extend, or refactor existing smart contracts. Share your repo details in the chat before ordering so I can assess the scope.
