stapan2002
Senior Blockchain & Ai Backend Developer
Senior Blockchain & AI Backend Developer with 5+ years of experience in designing scalable backend systems, decentralized applications (DApps), and AI-powered platforms. Expertise in smart contracts, distributed systems, API development, and machine learning integration. Proven track record in fintech, Web3, and AI-driven services, with strong skills in system architecture, DevOps, and cloud infrastructure.
Experience: 5 years
Yearly salary: $40,000
Hourly rate: $25
Nationality: 🇺🇦 Ukraine
Residency: 🇺🇦 Ukraine
Experience
AI Backend Developer
ConnexAI 2023 - 2024
Designed backend microservices architecture with Spring Boot, Kafka, Redis. Developed AI-powered fraud detection system using Python, TensorFlow, Scikit-learn, integrated with backend APIs. Built blockchain-based remittance prototype using Hyperledger Fabric.
Senior Blockchain Developer
Peiko 2022 - 2025
Developed and deployed smart contracts on Ethereum (Solidity) and Solana (Rust). Built backend APIs for DeFi platform (Node.js, NestJS, PostgreSQL). Integrated on-chain data pipelines with AI models for anomaly detection.
Backend Developer
Tech Innovations 2022 - 2023
Developed enterprise backend applications using Java, Spring MVC, MySQL, Oracle, Red. Migrated legacy infrastructure to AWS cloud. Designed REST APIs for third-party integrations.
Skills
backend
blockchain-engineer
defi
dot-net
hardhat
java
python
react
rust
solana
tokenomics
truffle
web3js
solidity
english
polish
ukrainian