Frontend Technical Lead @ Deliveristo
Transformed platform from Vue.js to React/Next.js with server-side componentsReduced initial page load times by 95% (from 3.5s to 150ms)Rebuilt mobile app in Flutter, eliminating 95% of legacy bugsIncreased test coverage from 0% to 90%
Technologies used: TypeScript • React • Apollo GraphQL • Next.js • PostCSS • Jest • Cypress • Flutter Senior Software Engineer @ tal&dev
Migrated from JavaScript to TypeScript with functional approachImproved performance by 70% and increased test coverage to 97%Implemented functional programming principles across codebase
Technologies used: TypeScript • React • Apollo GraphQL • Next.js • PostCSS • Jest • Cypress • Flutter Senior Software Engineer @ BEE by MailUp Group
Led application rewrite with fp-ts, reducing side effects by 90%Reduced load times by 2.5s through architecture optimizationBuilt custom state management improving performance by 60%
Technologies used: TypeScript • React • Fp-ts • styled-components • Jest • Enzyme