Bogdan Matei

Profile

Interfaces that are clear, fast and built to last.

What I build
Web and mobile products from start to finish: dashboards, checkout and onboarding flows, real-time features and design systems, built with React, Next.js, React Native and TypeScript.
How I work
I work as the engineer closest to design. I take requirements from conversation to screen, propose UX improvements and raise usability issues while building, instead of waiting for every pixel.
Beyond features
Release cycles, CI/CD with feature-branch environments, Playwright coverage, Sentry and incident response. I mentor through code review and pair programming, and use AI tools like Claude Code and Sentry MCP in my daily work.

Experience

Where I've worked

Mar 2022 – Apr 2026
Frontend Developer
Chiliz · Remote
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Built and maintained the React web app and React Native app behind Socios.com and Fantokens.com, consumer fintech products used by football fans worldwide. Both shipped side by side at 1:1 feature parity for four years, on React 19, Next.js, TypeScript and React Native.
- Built a real-time auction system where fans bid on match-worn shirts and balls from European football games: lightweight WebSocket events, TanStack Query invalidate-and-refetch, and pessimistic minimum-bid validation at submit. Big-game shirts were heavily contested, and it shipped with no breaking bugs.
- Rewrote the majority of the component library on a custom token-based Tailwind design system with theming and Storybook, and replaced Chakra UI with in-house components built on shadcn/ui, cutting load times and unifying the design language.
- Took end-to-end test coverage from 0% to 90% with Playwright, sharply reducing regressions on existing user flows. Unit tests with Vitest.
- Technical champion for 5 major product features: scoped with product and design, coordinated 1 to 3 teams per initiative, and delivered at a 90% on-time rate.
- First responder for 50% of production-critical incidents, typically resolving high-severity issues end to end within 2 to 3 hours. Rotated monthly through Sentry monitoring across feature teams.
- Built a proof of concept integrating TradingView charts as a new charting library on Fantokens.com, then implemented it in production, giving users clearer visibility into the tradability of existing tokens.
- Integrated three in-house services (blockchain, back office and main app) to deliver Fan Token Offering, a purchase and checkout flow using a non-custodial wallet on the Chiliz Chain with fee-free transfers.
- Mentored mid-level engineers through code review (5 to 10 PRs a week) and pair programming, and was the direct replacement for the team’s tech representative.
Mar 2021 – Mar 2022
Junior Frontend Developer
WEvolve · Remote
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Fixed bugs in React and Vue.js projects for external clients (under NDA), then contributed to a consumer fitness web app across the full product lifecycle, from design to production.