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Nederlands
$
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Rakib Hossain
@rakibmihossain
Level 1
Web3 Dapps, Smart Contract, Solidity, Nodejs, Python
Bangladesh
Urdu, Engels, Bengaals, Hindi
Over mij
I am a Web3 and software developer specializing in production-ready smart contracts and full-stack decentralized applications. I build secure Solidity contracts, automated trading bots, and scalable backend systems using Foundry, Python, FastAPI, and React.
I have hands-on experience delivering tokens, presales, staking and farming systems, wallet tools, and end-to-end Web3 products from architecture to deployment. My focus is security, clarity, and systems that work in the real world, not demos.
Skills
Rakib Hossain
US$ 35/uur
offline •
Gemiddelde reactietijd: 1 uur
Bekijk mijn diensten
dApps (decentralized apps)
I will build web3 dapps and automation scripts in python and javascript
dApps (decentralized apps)
I will do web3 development in python, smart contracts, bots, dapps
Wil je op uurbasis werken?
Vertel Rakib Hossain wat je nodig hebt.
US$ 35
/
uurPortfolio
Werkervaring
Backend & Web3 Engineer
Sompay • Freelance
Dec 2025 - Jan 2026 • 1 mo
Worked as a backend and Web3 developer on a fintech application that enables users to buy a stablecoin using fiat payment methods and manage tokens inside the platform. Key contributions: Built backend services using Django to handle user accounts, transactions, balances, and payment workflows Integrated fiat on-ramps including Stripe and Interac e-Transfer Designed an agent-based payment system where agents list supported payment methods, including mobile money providers Developed and deployed ERC20 smart contracts across Ethereum, Polygon, BSC, Arbitrum, Optimism, and Avalanche C-Chain Implemented internal custodial wallet logic allowing users to send tokens to other users within the platform (no external wallets) Built in-app token swapping between the platform token and USDC Integrated blockchain interactions using web3.py Wrote and tested smart contracts using Solidity with Foundry for testing and validation Ensured transaction integrity, security, and correct on-chain/off-chain synchronization
19 Reviews
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1-5 van 19 reviews
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rajaraja643
Terugkerende klant
Marokko
Highly recommend 👌 thank you rakib agen perfect and fast work 👌 👏
Nuttig?
rajaraja643
Terugkerende klant
Marokko
Highly recommend 👌 thank you rakib agen perfect and fast work 👌 👏
Nuttig?
daechong364
Terugkerende klant
Panama
Thank You Rakib - Again, perfect and fast work!!! Thank you!
Nuttig?
daechong364
Terugkerende klant
Panama
Rakib delivered an exceptionally complex and robust system for us. He built a full end-to-end solution that gracefully handles issues even when external components fail. The system includes PDF generation, unique hash calculation, blockchain storage, smart contract development, batch processing, and...
Nuttig?
ayanlle252
Canada
Outstanding experience! This seller went above and beyond the scope of work and delivered far more than expected. Communication was clear, fast, and professional throughout the entire process. He paid attention to details, understood the requirements perfectly, and made sure everything was done properly....
Nuttig?
