Nikita N.

Most used technologies: Ruby, Ruby on Rails, PostgresSQL, Sidekiq, Rspec, Docker. Main challenges: - Develop Rails API for mobile and frontend clients - Build integration with electronic document workflow system - Build Payment gateway microservice - Build mail gateway microservice

Most used technologies: Ruby, Ruby on Rails, Grape, CoffeeScript, MySQL, Sidekiq, Rspec, Docker, AWS, ElasticSearch. Main challenges: - Took part in the development of the project architecture; - Optimized the loading of the private messages page and the deals page (rendering optimization, SQL query optimization, N + 1 queries); - Wrote integration with Primetrust (a product providing services for FinTech companies); - Worked with services for checking documents Blockscore, Jumio; - Participated in the development of the White Label project; - Participated in the development of a new KYC / AML process; - Developed REST API based on Grape for mobile app and frontend in React; - Eliminated SQL injection and XSS vulnerabilities. - Wrote integration and unit tests (Rspec)