Open to opportunities

Sergei Bocharov

@sergeibocharov

Senior Software Engineer at Emerging Travel Group, building secure authentication and faster React experiences.

At Emerging Travel Group, I designed production systems across React, TypeScript, and Node.js, including a secure two-factor authentication system and AWS Lambda integrations. I also optimized React rendering and API requests, improving page-load performance across core user flows by 15%.

Previously, at Yandex, I led an engineering team and developed a shared React and TypeScript component platform used across approximately 42 internal teams. My work also included migrating core corporate UI infrastructure to React and TypeScript and contributing to the launch of Yandex Cloud.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Software Engineer

Current

Emerging Travel Group

Aug 2023 - Present (3 years 2 months)

Designed and delivered production systems across React, TypeScript and Node.js, including a secure two-factor authentication system and serverless backend integrations. Profiled and optimised React rendering and API request patterns, improving page-load performance by 15%.

React TypeScript NodeJS AWS Lambda Serverless Performance Optimization Authentication

Senior Full-Stack Software Engineer

Nornickel

Feb 2022 - Aug 2023 (1 year 6 months)

Led full-stack development of CityOnline, integrating 30+ municipal services across 5 regions and contributing to a 25% increase in DAU. Designed a real-time public transport monitoring system using TypeScript, WebSockets and 2GIS APIs, improving ETA accuracy by 35%.

TypeScript WebSockets 2GIS REST APIs PostgreSQL Fullstack Development

Senior Frontend Software Engineer / Frontend Lead

Sber

May 2021 - Feb 2022 (9 months)

Built and technically led a 6-engineer frontend team responsible for re-architecting and relaunching the product on a modern frontend stack. Designed a Real User Monitoring and analytics pipeline with production telemetry stored in ClickHouse, reducing advertising load time by 40%.

Frontend Architecture React TypeScript Clickhouse A B Testing Bayesian Statistics Real User Monitoring (RUM)

Software Engineer / Engineering Lead

Yandex

May 2016 - Oct 2020 (4 years 5 months)

Led a technical documentation engineering team, scaling it from 5 to 12 engineers, while remaining hands-on with architecture and development. Architected a shared React/TypeScript component platform serving approximately 42 internal engineering teams and led migration of core corporate UI infrastructure from i-bem.js to React and TypeScript.