Andrew Volozhanin Email & Phone Number

Haarlem, Nh, Nl

Amsterdam, North Holland, Netherlands

- Dealt with a major change to a crucial part of the business. I had to adapt quickly and closely collaborate with stakeholders to meet their requirements without breaking the existing user experience.- Lead a switch to a better image processing solution based on ImgProxy.- Rewrote a search implementation using a deeper understanding of Elasticsearch fundamentals.- Participated in a deprecation of a legacy monolith application and worked on improving the new microservice architecture based on Kafka.- Helped to facilitate a productive work environment by organising architectural discussions and writing better documentation.

Saint Petersburg, Russian Federation

- Developed a fintech service (ePayService) featuring multiple API integrations with external services, PSD2-compliant Open API, and support for KYC and PCI DSS requirements.- Built APIs for mobile and frontend applications.- Comfortable with a variety of databases, including PostgreSQL, Redis, ElasticSearch, Clickhouse, InfluxDB, and Mnesia.- Dealt with scaling issues (ca. 50 million database rows and ca. 70 million files).- Introduced Elixir and Elm languages into the company.- Implemented Github flow and code review practices.- Managed a team of junior developers.- Set up self-hosted continuous integration and deployment, logging and metrics services.

Tyumen Region, Russian Federation

Maintained the internal CRM system of a real estate agency.

Tyumen Region, Russian Federation

- Created a website, aimed at parents, listing and advertising family-friendly local events and companies.- Switched to Ruby on Rails and PostgreSQL.- Contributed to the open source.

Tyumen Region, Russian Federation

- Maintained multiple government and private-sector PHP websites.- Developed a service for booking museum tours for the regional Department of Culture.