samshak

Senior Node.Js & Web3 Backend Engineer

Senior Node.js, Web3 & AI Backend Engineer building high-performance backends, EVM event listeners, and automated AI workflows.

⚡ Core Competencies:
• Backend Engineering: Node.js, Express.js, MongoDB, REST APIs, Webhooks.
• Web3 & Crypto: EVM Event Listeners, Ethers.js, Web3.js, USDT/Token Gateways.
• AI & Automation: OpenAI APIs, Telegram Bot Infrastructure, Custom RAG Systems.

🤝 Collaboration Terms:
• 100% Text-Based Communication via Telegram (@sam_shak)
• Pay-After-Satisfaction: Zero upfront risk. Build first, test, pay when satisfied.
• Secure Settlement: USDT (Cryptocurrency).

📁 Portfolio: https://www.remote3.co/p/samshak


Experience: 7 years

Yearly salary: $50,000

Hourly rate: $50

Nationality: 🇨🇭 Switzerland

Residency: 🇨🇭 Switzerland


Experience

Senior Web3 & AI Backend Engineer
Freelance / Self-Employed
2020 - 2026
• Developed high-performance backend systems using Node.js, Express.js, and MongoDB. • Built EVM smart contract event listeners and automated Web3 transaction processors. • Integrated OpenAI APIs, custom Telegram bots, and automated AI workflow pipelines.

Skills

ethereumjs
evm
javascript
mongo
web3js
node
english
spanish