Hire the Best Solidity Freelancers
in Nigeria

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Obasanjo E.

Lagos, Nigeria

$50/hr
5.0
4 jobs

I build and audit smart contracts and I know exactly where they break. Most developers write contracts. Most security researchers find bugs. I do both, which means I can ship Web3 products that are secure from day one not after an exploit drains your protocol. What I do: Smart contract development (ERC20, ERC721, DeFi, staking, DAOs) on Ethereum, BSC, and EVM-compatible chains Smart contract security audits reentrancy, access control, integer overflow, flash loan attacks, and more Full-stack Web3 dApps (frontend + Solidity + backend APIs) Penetration testing for Web3 projects and backend systems My stack: Solidity · Hardhat · Foundry · Python · Node.js · React · Web3.js · Ethers.js I've worked on Cardano NFT projects (SpaceBudz, CNFT ecosystems), DeFi tools, and automation bots. I write clean, gas-optimized code and deliver detailed audit reports with proof-of-concept exploits and fixes not just a list of warnings. If you're launching a protocol, token, or dApp and need it done right and done securely, let's talk.

  • Solidity
  • Blockchain
  • Blockchain Development
  • Back-End Development
  • API Testing
  • Penetration Testing
  • Smart Contract Development
  • web3.js
  • Hardhat
  • DeFi
  • Python
Femi A.

Lagos, Nigeria

$25/hr
5.0
4 jobs

I build decentralized applications that work. If you need a DeFi protocol, token launch platform, or blockchain fork deployed quickly and securely, I can deliver. Recent Projects: ✅ Aave lending protocol clone (full-stack DeFi) ✅ PancakeSwap DEX fork with custom tokenomics ✅ Pinksale launchpad implementation ✅ DEX aggregator with real-time data visualization What You Get: • Clean, auditable smart contracts (Solidity/Rust) • Full-stack web3 integration (React/Next.js + Web3.js/Ethers.js) • API integration for on-chain/off-chain data • End-to-end project management from brief to deployment • Regular updates – I communicate daily via your preferred channel Tech Stack: Backend: Node.js, NestJS, Express, PostgreSQL, MongoDB Frontend: React, Next.js, TypeScript, Tailwind, Material-UI Blockchain: Solidity, Hardhat, Ethers.js, Web3.js Mobile: React Native, Swift, Android Native Let's build something secure and scalable. Message me with your project details.

  • Solidity
  • Blockchain
  • Web Application
  • JavaScript
  • React
  • Node.js
  • Web Development
  • RESTful API
  • Cryptocurrency
  • Computer Engineering
  • Web3
  • Front-End Development
  • Computer
  • NFT Marketplace
  • NFT Minting
Michael S.

Ado-Ekiti, Nigeria

$30/hr
5.0
1 jobs

🔴 WARNING: This is NOT a typical AI-generated Web3 / Blockchain Developer profile - so no need to skip. ✅ Blockchain Made Simple — No Buzzwords, Just Secure & Scalable Solutions ✅ Reliable Solidity & EVM-Based Smart Contract Developer ✅ No Missed Deadlines — Transparent Updates Every Step of the Way With over 5 years of hands-on full-stack development experience and a strong focus on Blockchain & Web3 technologies, I help startups, founders, and businesses build secure smart contracts, decentralized applications (DApps), and blockchain-powered platforms that are production-ready and scalable. Your project complexity becomes my responsibility. You can count on me to deliver clean code, secure contracts, and reliable Web3 solutions, whether you’re building a DeFi product, NFT platform, or a Web3 MVP. ✅ 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗳𝗼𝗿 𝗬𝗼𝘂 : 📍 𝑩𝒍𝒐𝒄𝒌𝒄𝒉𝒂𝒊𝒏 & 𝑺𝒎𝒂𝒓𝒕 𝑪𝒐𝒏𝒕𝒓𝒂𝒄𝒕 𝑺𝒌𝒊𝒍𝒍𝒔: 🔹 Solidity (EVM-compatible blockchains) 🔹 Smart contract architecture & development 🔹 DeFi protocols (staking, liquidity, token logic) 🔹 NFT standards (ERC-721, ERC-1155) 🔹 Secure contract deployment & interaction 📍 𝑾𝒆𝒃3 & 𝑫𝑨𝒑𝒑 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕: 🔹 DApp development (Frontend + Smart Contracts) 🔹 Web3.js / Ethers.js integration 🔹 Wallet integration (MetaMask, WalletConnect) 🔹 Token-based authentication & transactions 📍 𝑭𝒓𝒐𝒏𝒕𝒆𝒏𝒅 𝑺𝒌𝒊𝒍𝒍𝒔: 🔹 HTML5, CSS3, JavaScript 🔹 React.js, Next.js, TypeScript 🔹 Tailwind CSS, Bootstrap 📍 𝑪𝒐𝒎𝒑𝒐𝒏𝒆𝒏𝒕 𝑳𝒊𝒃𝒓𝒂𝒓𝒊𝒆𝒔: 🔹 Mantine UI, Material UI, Chakra UI, ShadCN 🔹 Tailwind UI, Chart.js, D3.js 📍 𝑩𝒂𝒄𝒌𝒆𝒏𝒅 𝑺𝒌𝒊𝒍𝒍𝒔: 🔹 Node.js, Express.js, GraphQL 🔹 MongoDB, PostgreSQL, MySQL, Supabase 📍 𝑻𝒆𝒔𝒕𝒊𝒏𝒈 𝑻𝒐𝒐𝒍𝒔: 🔹 Smart contract & unit testing 🔹 Jest 📍 𝑼𝑰/𝑼𝑿 𝑻𝒐𝒐𝒍𝒔: 🔹 Figma (design-to-code workflow) 📍 𝑪𝒍𝒐𝒖𝒅 & 𝑫𝒆𝒗𝑶𝒑𝒔: 🔹 AWS (EC2, S3, Lambda, DynamoDB) 🔹 Docker, GitHub, GitLab, Vercel ✅ 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵: 𝚆𝚎𝚋3 & 𝙱𝚕𝚘𝚌𝚔𝚌𝚑𝚊𝚒𝚗 𝚂𝚘𝚕𝚞𝚝𝚒𝚘𝚗𝚜 𝙸 𝙱𝚞𝚒𝚕𝚍: 🔅 DeFi platforms & protocols 🔅 NFT minting & marketplaces 🔅 Token-based applications 🔅 Blockchain-powered MVPs 🔅 Web3 SaaS platforms 𝚆𝚎𝚋 𝙰𝚙𝚙𝚕𝚒𝚌𝚊𝚝𝚒𝚘𝚗𝚜 (𝙵𝚛𝚘𝚗𝚝𝚎𝚗𝚍 & 𝙱𝚊𝚌𝚔𝚎𝚗𝚍): 🔅 Custom Web3 applications 🔅 Secure admin dashboards 🔅 API & blockchain integrations 🔅 MVP development with long-term support Imagine your Web3 project working securely and at scale. Now, let’s make that a reality. 𝙎𝙚𝙣𝙙 𝙢𝙚 𝙖 𝙢𝙚𝙨𝙨𝙖𝙜𝙚 ➤ 𝙊𝙧 𝙄𝙣𝙫𝙞𝙩𝙚 𝙢𝙚 𝙩𝙤 𝙩𝙝𝙚 𝙟𝙤𝙗 ➤ 𝙄’𝙡𝙡 𝙧𝙚𝙨𝙥𝙤𝙣𝙙 𝙞𝙣 ❷ 𝙢𝙞𝙣𝙪𝙩𝙚𝙨

  • Solidity
  • Blockchain
  • Blockchain Architecture
  • Blockchain Development
  • Smart Contract
  • NFT
  • Smart Contract Development
  • web3.js
  • Node.js
  • Blockchain Tokenization
  • Blockchain Security
  • DeFi
  • Utility Token
  • React
  • Ecommerce Website Development
Olusola A.

Ifo, Nigeria

$35/hr
4.9
102 jobs

Full Stack Blockchain Developer | Ethereum | Solidity | Rust | Solana | EVM | Web3.js | Anchor | Next.js | NFT | Trading Bot Looking for a secure, gas-optimized smart contract or a high-performance Solana program? I help Web3 founders, startups, and technology companies build production-ready blockchain applications across Ethereum, Solana, and EVM-compatible networks. From smart contract architecture and DApp development to testing and mainnet deployment, I build decentralized applications focused on security, scalability, reliability, optimized gas usage, and real-world usability. My expertise includes Solidity smart contracts, Rust/Solana programs, EVM development, Web3.js integrations, NFT, Anchor Framework, Next.js DApps, token development, DeFi applications, and blockchain integrations. I specialize in developing reliable blockchain products — not just prototypes. Whether you need a custom smart contract, DeFi platform, Web3 application, token ecosystem, or complete decentralized infrastructure, I help transform ideas into functional products ready for users and market growth. My approach combines technical expertise with scalable architecture to deliver efficient, maintainable, and future-ready blockchain solutions. My experience covers Ethereum, EVM-compatible networks, Solana, and modern Web3 technologies, enabling me to build solutions tailored to different blockchain ecosystems. My Blockchain Development Services:: ✅ Smart Contract Development: Solidity smart contracts. ERC-20, ERC-721, ERC-1155 token development. Token creation and deployment. Staking, vesting, governance, and reward systems. Smart contract testing, optimization, and security improvements. Contract verification and mainnet deployment. ✅ Ethereum & EVM Development: Ethereum blockchain development. EVM-compatible networks (Polygon, BNB Chain, Arbitrum, Optimism, Base). Solidity development. Web3 integrations. Layer 2 blockchain solutions. Wallet and blockchain infrastructure integration. ✅ Web3 DApp Development: Full-stack decentralized applications. React.js / Next.js Web3 applications. Node.js backend development. Web3.js and Ethers.js integration. MetaMask, WalletConnect, and Phantom wallet integration. User dashboards, admin panels, and blockchain-powered platforms. ✅ DeFi Development: Decentralized exchanges (DEX). AMM protocols. Liquidity systems. Staking platform. Yield farming applications. DAO and governance systems. DeFi MVP development. ✅ Solana Development Solana token development. SPL token creation. Solana ecosystem integration. Phantom wallet integration. Rust-based blockchain solutions. Blockchain MVP Development: I help founders move from concept to a working blockchain MVP ready for testing, investors, and market launch. Services include: Blockchain product architecture. Smart contract MVP development. Token-based platforms. Web3 startup solutions. Prototype-to-mainnet development. Scalable blockchain infrastructure. My Technologies: Blockchain: Ethereum | EVM | Solana | Polygon | BNB Chain | Arbitrum | Optimism | Base. Smart Contracts: Solidity | Rust | ERC Standards | SPL Tokens | OpenZeppelin. Web3: Web3.js | Ethers.js | WalletConnect | MetaMask | Phantom. Frontend & Backend: React.js | Next.js | Node.js | APIs | Blockchain Integrations. Why Clients Choose Me: Specialized Blockchain Developer focused on Ethereum, EVM, Web3, and DeFi. Experience building production-ready blockchain solutions. Strong understanding of smart contracts and decentralized applications. Security-focused development approach. Clear communication and reliable delivery. Focused on creating scalable products that can grow beyond MVP stage. If you are building a Web3 startup, launching a blockchain product, developing a DeFi platform, or need an experienced Ethereum/EVM developer, I can help you build and deploy your solution. Let’s discuss your blockchain project and turn your idea into a working product.

  • Solidity
  • Blockchain
  • Blockchain Architecture
  • Blockchain Development
  • Ethereum
  • Smart Contract
  • Cryptocurrency
  • Smart Contract Development
  • Blockchain Platform
  • Crypto Marketing
  • ICO Marketing
  • ReddCoin
  • Blockchain, NFT & Cryptocurrency
  • JavaScript
  • Node.js
  • web3.js
  • Blockchain Development Framework
  • PHP
  • API
  • React
AbdulHamid O.

Ilorin, Nigeria

$10/hr
5.0
3 jobs

Experienced Web3 Software Engineer specializing in smart contract development and security auditing. I combine deep technical expertise with a mission-driven approach to deliver secure, gas-optimized blockchain solutions. Core Expertise: - Smart Contract Development & Security Auditing - DeFi Protocol Testing & Implementation - Blockchain Integration & Frontend Development Technical Skills: - Token Standards: ERC20, ERC721, ERC1155, ERC6551, ERC777, ERC4337, EIP712, etc - Smart Contract Patterns: UUPS, Beacon proxy, transparent proxy - Development Tools: Hardhat, Foundry, Ethers.js, Web3.py, Viem - Testing: Unit testing, integration testing, fuzzing, Echinda, formal verification Notable Projects: - Monadex (WIP): Co-founder and Solidity developer building a custom DEX and gamified experience on Monad L1 - Sabre DAO: Decentralized VC platform (6th place in LW3 hackathon) - PayStream: Peer-to-peer money streaming platform integrated with PayPal stablecoin - DTesla: On-chain Tesla stock tokenization using Chainlink oracles and Alpaca Security Expertise: - Completed major security CTFs: Ethernaut, Capture the Ether, Damn Vulnerable DeFi - Specialized in gas optimization and secure smart contract development - Expert in smart contract testing and vulnerability assessment Education & Certifications: - Bachelor's Degree in Mechanical Engineering, University of Ilorin - Cyfrin Updraft: Solidity 101, Foundry 101, Advanced Foundry - Patrick Collins' Full Hardhat Course

  • Solidity
  • Blockchain
  • Ethereum
  • Web3
  • NFT
Dominion O.

Ibadan, Nigeria

$25/hr
5.0
1 jobs

Hi there, I’m a full-stack blockchain developer. I build smart contracts, dApps, and DeFi apps that are secure, clear, and ready for real use. I can handle the full stack - frontend and backend, and also on-chain logic so you don’t need separate developers. 🔹 What I Do: Smart Contracts - ERC20, BEP20, and SPL tokens (mint/burn, ICO/IDO, reflections) - NFTs (ERC721/1155) with royalties, presales, auctions, IPFS, and metadata - dApps like crowdfunding, marketplaces, lotteries, and airdrops Full-Stack Development - Frontend: React, Next.js, TypeScript - Backend: Node.js, Python, Hardhat, Foundry - Smart contracts: Solidity (Ethereum, BSC), Rust (Solana, Near), Motoko (ICP), Tezos, zkSync - Integrations: Uniswap, PancakeSwap, Aave, Raydium, bridges, and rollups Custom Scripts - Swap bots, liquidity tools, automation for DeFi protocols 🔹 Why Work With Me - Security first — audit-ready and resistant to exploits - Gas-efficient — optimized code to save deployment and transaction costs - Multi-chain — Ethereum, Solana, Tezos, zkSync, TON, Injective, and more - End-to-end — frontend, backend, and contracts handled in one place - Clear communication and reliable support after launch

  • Solidity
  • DApp Development
  • Blockchain Architecture
  • Blockchain Development
  • Ethereum
  • Smart Contract
  • Rust
  • Sui
  • React
  • Next.js
  • Blockchain, NFT & Cryptocurrency
  • Hardhat
  • DeFi
  • Ethers.js

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