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Alex Starodubtsev

@alexstarodubtsev

Frontend Team Lead at Centro Company who developed a product from the ground up and improved its Lighthouse score to 90+.

Cyprus

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At Centro Company, I led frontend development of a product from the ground up and designed its frontend architecture. I also onboarded eight people and managed work across the frontend team.

I improved the Lighthouse performance score from ~30–40 to 90+, optimizing LCP, INP, and FCP, and reduced CI/CD build time from 30–40 minutes to a few minutes. I also improved SEO and Core Web Vitals and maintained localization for six languages.

At Reltio, I developed frontend UI for a large-scale Data Management system and contributed to architecture decisions in a microservices environment. I increased automated test coverage from 20% to 80% and helped modernize legacy frontend code.

Experience

Work history, roles, and key accomplishments

Frontend Team Lead

Centro Company

Jan 2022 - Jan 2026 (4 years)

Led a frontend team of up to 8 engineers, designed frontend architecture, and optimized development workflows. Improved performance scores and CI/CD build times, and conducted A/B testing on a platform serving 2M+ daily active users.

Senior Software Engineer

Reltio

Jan 2021 - Jan 2022 (1 year)

Developed frontend UI for a large-scale data management system within a microservices architecture. Increased automated test coverage from 20% to 80% and documented ~70% of application features and architecture.

React TypeScript JavaScript Microservices Frontend Architecture Testing Jest React Testing Library Enzyme Confluence Mentorship Code Review

Software Engineer

Acroplia

Jan 2020 - Dec 2020 (11 months)

Developed components for an American social network, optimized React rendering and bundle size, and reduced page response time to under 1 second. Built reusable UI components with Storybook.

React JavaScript Performance Optimization Bundle Optimization Storybook Code Review Bug fixing

React Developer

Business Technologies

Jan 2018 - Jan 2020 (2 years)

Developed React-based frontend applications and reduced SPA navigation time from ~5s to under 1s by eliminating full-page reloads. Built and optimized large virtualized data trees, reducing load time to under 1 second.

React JavaScript SPA Performance Optimization Virtualized Data Trees