Position: Senior Software Engineer
Category: Ruby
English level: intermediate
Years of experience: 11

Building system of detecting of relations and output layers of relations with real time calculation SVG also data and schema migration from Dynamo to Neptune database (AWS Gremlin implementation).

Data and schema migration from relation to NoSQL database. Designed and developed database schema migrated around 1TB of commercial data in real time to new DB (incoming load up to 100 req/sec) without the system availability interruption. Implemented mechanism to provide long term availability and consistency of both schemes. Implemented asynchronous reporting system that allowed significantly reduce loading on the system and improve its performance. 

Implemented classified advertising platform with audience ~ up to 70000 unique visitors per day from scratch and worked on it throughout the whole life cycle.
M, Ruby, Rails, DynamoDB, Neptune, Gremlin, Mongo, MySQL, RabbitMQ, Chef, Docker, AWS, INFURA
Position oriented at data processing.

Front-end less interesting for me.