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Salman S.
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Salman S.

Blockchain Developer | Smart Contracts | Web3 | DeFi | NFTs

Building a blockchain product takes more than writing smart contracts it requires secure architecture, scalable development, and a seamless user experience. I help startups, founders, and businesses turn blockchain ideas into production ready Web3 solutions. Whether you need a custom smart contract, DeFi platform, NFT marketplace, token launch, or a full-stack dApp, I build solutions that are secure, efficient, and designed to scale. What I Can Help You Build • Smart Contracts (Solidity & Rust) • DeFi Platforms (Staking, Yield Farming, Liquidity Pools) • ERC-20, ERC-721, ERC-1155 & SPL Tokens • NFT Marketplaces & Minting Platforms • Full-Stack Web3 dApps • Crypto Wallet Integration (MetaMask, WalletConnect, Phantom) • Token Launches, DAOs & Tokenomics • Smart Contract Audits & Gas Optimization Tech Stack Blockchains: Ethereum, Solana, BNB Chain, Polygon, Avalanche Tools: Solidity, Rust, Hardhat, Foundry, Truffle, OpenZeppelin, Ethers.js, Web3.js, IPFS, Chainlink Frontend & Backend: React, Next.js, Node.js, TypeScript, Python I believe in writing clean, secure, and well-tested code while keeping communication clear throughout the project. If you're looking for a reliable blockchain developer who can turn your Web3 idea into a real product, let's connect. Keywords: Blockchain Development, Smart Contract Development, Solidity, Web3, Ethereum, Solana, DeFi, NFT, dApp Development, Token Development, Crypto Wallet Integration, Layer 2, Tokenomics, Smart Contract Audit.

🇵🇰Karachi, Pakistan$15/hr100% JSS5.00 (3)Since May 2023

Earnings and projects

MRR
$92

Last 6 months ÷ 6

World#137,002 / 412k
🇵🇰Country#19,483 / 52.9k
Revenue, last 30 days
—

Read daily since Oct 24, under 30 days

Total earnings
$1.2k

Billed in all: $1.2k

World#381,503 / 412k
🇵🇰Country#47,914 / 52.9k
Per project
$193

$277 in the last 6 months

World#267,006 / 412k
🇵🇰Country#34,296 / 52.9k
Projects, last 6 months
2
100% fixed0% hourly
World#88,918 / 412k
🇵🇰Country#17,051 / 52.9k
Projects in all
6

Across 11 contracts

64% fixed36% hourly
World#250,290 / 412k
🇵🇰Country#39,844 / 52.9k

Earnings, last 30 days

$1.2kNothing earned since Oct 24Billed in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,140$1,160$1,180$1,200Oct 24Oct 31Nov 7

Tracked from Oct 24, 2026.

Skill rankings: Top 16% in DApp Development

Ranked by MRR among everyone on Upwork with the skill.

  1. #7ERC-2026 freelancers · 🇵🇰 #4Top 27%
  2. #9MetaMask20 freelancers · 🇵🇰 #4Top 45%
  3. #10Hardhat31 freelancers · 🇵🇰 #2Top 32%
  4. #21DApp Development131 freelancers · 🇵🇰 #7Top 16%
  5. #45DeFi219 freelancers · 🇵🇰 #14Top 21%
  6. #47Smart Contract Development225 freelancers · 🇵🇰 #12Top 21%
  7. #53Solana270 freelancers · 🇵🇰 #18Top 20%
  8. #89Ethereum531 freelancers · 🇵🇰 #17Top 17%