Position: Python Backend Developer
Category: Python
English level: intermediate
Years of experience: 4

I`ve been participating in Serial Hackathon and I developed a patient-controlled health records system using proxy re-encryption schema and Solidity smart contracts. I took II place among NuCypher tasks participants.
OnGrid Systems 2018-2020
 ICO platform. A template for different crowdfunding projects. I’ve been extending the
features to make compatibility with different types of Ethereum smart contracts and
payment methods. (Django, MySQL).
 Geniepay. Non-custodial crypto wallet mobile application. I wrote REST API for it to get
transactional data. (aiohttp)
 Bitcoin Payment Gateway. Service used to accept BTC payments without third-party
API interacting with BTC node directly. (aiohttp, sqlalchemy, RabbitMQ, PostgreSQL).
 Blockchain Indexer. Service used for continuous indexing of bitcoin-like and
ethereum-like blockchains transactional data into PostgreSQL database written in
python.
EVO.Vchasno 2020-2022
 Vchasno. Legal e-signature service with rich enterprise features. I’ve been implementing
new functionality and optimizing SQL queries. (aiohttp, graphene, sqlalchemy,
PostgreSQL, Kafka, Elasticsearch)
 Vchasno.EDI. Service is an intermediate of EDI documents exchange between retail
networks and goods providers. I had to make a lot of test coverage and slowly refactor
the current codebase to suit both Configuration Driven Development and Test Driven
Development practices the project required to increase its growth. (aiohttp, graphene,
sqlalchemy, PostgreSQL, Kafka)
I'm looking for a backend role in developing data-intensive applications.