# Razvan Puscasu — Resume

**Product Engineer · London, UK · Available remotely**

- Website: https://razvanpuscasu.dev
- LinkedIn: https://linkedin.com/in/razvanpuscasu
- GitHub: https://github.com/puscasurazvan
- PDF version: https://razvanpuscasu.dev/assets/razvanpuscasudev.pdf

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## Summary

Product Engineer with 8+ years of experience building secure, scalable products. Specialises in React, TypeScript, and modern web technologies. A product-first developer who blends complex engineering with intuitive design — thinks about why a feature matters, how users interact with it, and how to ship it better.

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## Experience

### UI / UX Engineer — Aker Systems

**September 2025 – Present** · London, UK

- Pioneering the integration of robust React applications within highly secure environments, ensuring seamless performance and enterprise-grade scalability.
- Architecting and maintaining a comprehensive multi-thematic design system to accelerate development cycles and ensure visual consistency across all product lines.
- Engineering AI-powered features and automated workflows to enhance user efficiency and deliver intelligent data-driven insights.

**Stack:** React, Design Systems, Zustand, Tauri, Electron, EmotionJS, Claude Code

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### Frontend Developer — Seenit

**April 2020 – May 2025** · Remote · https://seenit.io

- Led features in frontend development for Seenit's next-gen video editing platform as part of a 3-person team, contributing to a 50% increase in platform engagement year-over-year.
- Built scalable UI components with React and Atomic Design, reducing frontend development time by 30% and improving design consistency.
- Developed an AI-powered in-house editor using Adobe Express assets and automation tools, cutting manual editing effort.
- Implemented intelligent features like content recommendations and auto-enhancements to boost creativity.
- Integrated GraphQL APIs to streamline data fetching, leading to a 35% decrease in API call overhead and faster frontend rendering.
- Optimised UI performance through profiling, testing, and following development best practices.
- Resolved 100+ production issues and deployed critical hotfixes with under 24-hour turnaround, ensuring 99.9% platform uptime.
- Collaborated effectively in a remote environment, mentoring juniors across distributed teams.

**Stack:** React, TypeScript, GraphQL, AI/ML, Video Editing

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### Frontend Developer — Vodafone UK

**September 2018 – April 2020** · London, UK · https://vodafone.co.uk

- Helped develop Vodafone UK's new checkout system as part of a 6-person frontend team, contributing to a 25% increase in checkout conversion rates post-launch.
- Built scalable, consistent UI components using React and Atomic Design.
- Boosted app performance and responsiveness by optimising critical rendering paths and reducing bundle size by 35%, improving page load time by 1.8 seconds.
- Fixed production bugs and deployed hotfixes to ensure a smooth user experience.
- Supported feature releases with staging tests and CI/CD deployment.
- Collaborated effectively in Agile squads with product and design teams, increasing sprint velocity by 15%.
- Onboarded new developers by sharing workflows and codebase knowledge.

**Stack:** React, Atomic Design, CI/CD, Agile, Performance

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### Frontend Developer (intern) — BitBee Ltd UK

**April 2018 – September 2020** · United Kingdom

- Collaborated with cross-functional teams to design and optimise high-converting landing pages, resulting in a 20% improvement in user engagement.
- Conducted performance audits and implemented front-end optimisations, reducing page load times by up to 40% using tools like Lighthouse.
- Applied UX best practices to improve user flows and interface responsiveness, leading to increased session duration and conversion rates.

**Stack:** HTML, CSS, JavaScript, Lighthouse, UX

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## Skills

**Frameworks & libraries:** React, Next.js, Vite, Storybook
**Languages:** TypeScript, JavaScript, HTML5, CSS3
**Styling:** Tailwind CSS, EmotionJS, CSS-in-JS, Atomic Design
**Data:** GraphQL, REST APIs
**State & animation:** Zustand, Framer Motion (Motion), GSAP
**Tooling:** Vite, Webpack, Node.js, Tauri, Electron
**AI tools:** Claude Code, GitHub Copilot, Cursor
**Practices:** Design Systems, Performance Optimisation, Web Accessibility (WCAG), CI/CD, Agile
**Languages spoken:** English (fluent), Romanian (native)

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## Highlights

- **8+ years** shipping production frontend.
- **25% conversion uplift** on Vodafone UK checkout.
- **35% bundle size reduction**, **1.8s** page-load improvement at Vodafone.
- **50% YoY engagement increase** at Seenit.
- **35% API overhead reduction** via GraphQL integration at Seenit.
- **99.9% uptime** sustained at Seenit.
- **100+ production issues** resolved with under 24-hour turnaround.

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_Last updated: 2026-05-15._