Real-time product interfaces
Responsive dashboards and financial workflows built for live, high-volume data without sacrificing clarity.
- WebSockets
- TanStack Query
- Zustand
Open to senior front-end opportunities
Senior Front-End Engineer
I build fast, scalable interfaces that make complex products feel simple.
I'm Masoud Mousavi, a Senior Front-End Engineer building real-time fintech and SaaS products—from scalable architecture to accessible, production-ready interfaces.
Engineering with product context
From architecture and accessibility to the final interaction detail.
Core stackReact 19 & Next.jsTypeScriptReal-time systemsWeb performance
4+
Years building production products
30%
Faster initial load on key dashboards
<5ms
Critical widget render time, down from ~50ms
~50%
Fewer emergency rollbacks through testing
What I bring
Senior execution without losing sight of the user.
Architecture & UI systems
Typed component libraries, predictable state, and migration strategies that help teams move faster.
- TypeScript
- Design systems
- React migrations
Performance & quality
Measured performance work and pragmatic automated testing that make releases faster and safer.
- Core Web Vitals
- Cypress
- CI/CD
Selected work
Projects where craft meets engineering.
RBTex (opens in a new tab)
01I own front-end delivery across cryptocurrency exchange, wallet, and payment workflows—from technical design and state architecture to testing, accessibility, and production performance.
- Next.js
- React
- TypeScript
Bitbine (opens in a new tab)
03I built resilient REST and real-time market-data flows for Bitbine’s spot and futures trading interfaces, with performance-sensitive transforms and production-focused test coverage.
- React
- TanStack Query
- WebSockets
Live Market Telemetry (opens in a new tab)
05A focused React 19 dashboard consuming live Binance ticker streams. Zustand selector subscriptions isolate coin-widget updates while Panda CSS keeps the interface type-safe and responsive.
- React 19
- TypeScript
- Zustand