galetka
Middle Python Developer
Experience: 4 years
Yearly salary: $20,000
Hourly rate: $20
Nationality: πΊπ¦ Ukraine
Residency: π Remote
Experience
Python Backend Engineer
Just.AI 2024 - 2025
Designed and implemented backend services for a conversational AI platform with Web3 capabilities, supporting seamless chatbot interactions with decentralized applications (dApps). Developed Web3 modules using web3.py to enable wallet-based authentication and on-chain transaction execution directly through chatbot interfaces. Built a smart contract interaction framework, allowing users to query blockchain data (e.g., token balances) and execute smart contract functions via natural language commands. Implemented a backend pipeline for processing blockchain event subscriptions, enabling real-time notifications for wallet activities and on-chain updates. Collaborated with AI engineers to integrate natural language processing (NLP) models with backend APIs, ensuring smooth data exchange between the chatbot and blockchain layers. Optimized system throughput by 30% by streamlining API endpoints and implementing caching strategies with Redis. Designed a monitoring system to track API performance and detect blockchain network disruptions, reducing downtime for end users.
Backend Developer
Bitok 2022 - 2024
Designed and implemented scalable RESTful APIs to provide secure access to user portfolio data and real-time price updates. Built an automated system for tracking cryptocurrency wallet balances across multiple blockchains (Ethereum, Binance Smart Chain, etc.). Integrated payment gateways for cryptocurrency transactions, including support for stablecoins Developed efficient data processing pipelines (Python, Celery) to handle high volumes of blockchain data. Implemented OAuth2-based authentication and multi-factor security for platform users. Optimized backend performance, reducing database query latency by 40% through query optimization and caching mechanisms. Monitored, debugged, resolved production issues using tools Prometheus and Grafana.
Skills
backend
bitcoin
nosql
pytorch
sql
tensorflow
web3-py
python
english
russian