Full-Stack Blockchain Development | Ethereum, Solidity, DApps

Olanrewaju Alaba

Contact for pricing

About this service

Summary

I provide expert blockchain development services, specializing in smart contracts, decentralized applications (DApps), and Web3 integrations. Whether you need a custom ERC-20 token, NFT marketplace, DeFi platform, or a full-stack DApp, I deliver secure, scalable, and gas-optimized solutions. With deep expertise in Solidity, Hardhat, and Ethereum, I ensure your blockchain project is built to the highest industry standards.

I take a security-first approach to blockchain development, ensuring all smart contracts are audited, gas-efficient, and free from vulnerabilities. I also provide detailed documentation, making it easy for you to manage and scale your project. With experience across Ethereum, BSC, and Polygon, I build blockchain solutions tailored to your needs.

Process

1️⃣ Consultation & Requirements Gathering – We discuss your project goals, technical needs, and blockchain integration. 2️⃣ Smart Contract/DApp Development – I write and test Solidity smart contracts and develop Web3-integrated applications. 3️⃣ Testing & Auditing – I conduct rigorous security checks and optimize for gas efficiency. 4️⃣ Deployment & Verification – I deploy the smart contract and verify it on Etherscan, BSCScan, or Polygonscan. 5️⃣ Delivery & Documentation – You receive the full source code, setup guide, and ongoing support if needed.

FAQs

What blockchain platforms do you support?
I specialize in Ethereum, Binance Smart Chain (BSC), and Polygon, but I can also work with other EVM-compatible blockchains.
Can you help me deploy my smart contract?
Yes! I handle end-to-end deployment and verification, ensuring your contract is live and accessible on the blockchain.
Do you provide security audits?
Yes, I perform smart contract audits to identify vulnerabilities and ensure best practices are followed.
What’s the typical delivery time?
Depending on the project, I deliver smart contracts within 3-5 days and full DApps within 1-2 weeks.
Do you offer revisions?
Yes! I include at least two free revisions to ensure the final product meets your requirements.

What's included

Smart Contract Code
Fully functional, optimized, and secure Solidity smart contracts (ERC-20, ERC-721, ERC-1155, custom contracts)
Smart Contract Deployment & Verification
Deployment of contracts on Ethereum, BSC, or Polygon, including contract verification on Etherscan or Polygonscan
Decentralized Application (DApp)
Full-stack DApp with frontend (React.js/Next.js) and smart contract integration using Web3.js or ethers.js
Security Audit Report
Comprehensive security audit with vulnerability assessment and gas optimization recommendations
API & Web3 Integration
Custom API for blockchain interaction, Web3 authentication, and backend logic

Example projects

AssetFlow

Recommendations

(5.0)

Aselemi Divine • Instasew operations

Client • Mar 21, 2025

Recommended

Olanrewaju Alaba is a skilled individual. I have worked with him in numerous projects. I must say that he takes details into consideration when working in a team.

Patience Dalafiari

Client • Mar 21, 2025

Recommended

During our collaboration he showcased his ability to persist in providing a good solutions to a problem. His very dedicated and creative as well. I highly recommend Olanrewaju for any project requiring innovative and reliable Software Engineering expertise.

Adabaale Mayowa

Client • Mar 21, 2025

Recommended

Olanrewaju worked with me on two softwares as a backend developer and did an amazing job. He's very good at what he does and I will recommend him to several other individuals and companies around the world.

Skills and tools

Blockchain Developer

Fullstack Engineer

Smart Contract Engineer