Elliot Négrel-Jerzy
Design engineer with an MSc in Computer Graphics & Vision and several years of production experience building React/TypeScript interfaces for geospatial and data-heavy platforms. Comfortable partnering closely with product, design, and engineering to ship technically complex, high-quality UI, from rendering-layer optimisation to end-to-end frontend architecture.
Languages
- FrenchNative, C2
- EnglishProficient, C2
- SpanishAdvanced, C1
- PolishUpper-intermediate, B2
- GermanIntermediate, B1
- RussianElementary, A2
Experience, 5 items
- Built the frontend and design of Macrodata Labs' data observability platform, enabling AI teams to process, understand, and scale multimodal datasets
- React
- TypeScript
- Next.js
- De facto UI/UX lead: owned frontend architecture, design language, and product experience across the platform
- Engineered geospatial dashboards for carbon monitoring at scale; built a production LLM-powered chat interface with real-time streaming Markdown and full PWA support
- Unified authentication across all Kanop apps into a centralised SSO system
- React
- TypeScript
- GCP
- Framer Motion
- Mapbox GL
- D3.js
- LLM
- GitLab CI/CD
- Sole frontend lead: rewrote the entire platform in React/Redux/i18n, delivering significant performance gains
- Built a Google Slides-style presentation editor from scratch, with complex state management and deep rendering optimisations
- Containerised backend services using Docker, reducing developer onboarding time by 70%
- React
- Redux
- Framer Motion
- Docker
- Django
- i18n
- Designed and built a Svelte component library aligned with Material UI guidelines, increasing development speed and design consistency
- Researched and implemented a contrast-aware palette generation algorithm using oklab/oklch colourspaces, significantly improving aesthetics and WCAG compliance
- Redesigned the company website, driving a 30% increase in traffic and 20% increase in conversion
- Svelte
- GraphQL
- Node.js
- Figma
- UI/UX
- Pioneered SaaS web applications using React, TypeScript, D3.js, and Mapbox GL for advanced geospatial data visualisations
- Automated frontend/backend type synchronisation via RTK Query codegen; led major website overhauls improving navigation and SEO
- React
- TypeScript
- Mapbox GL
- D3.js
- Node.js
- RTK Query
Education, 3 items
Computer Science & Applied Mathematics · MEng
Computer Graphics & Vision · MSc
Klagenfurt, AustriaExchange year
Lycée Déodat de Séverac
Mathematics & Physics · CPGE PCSI/PSI*
Skills
- React
- TypeScript
- JavaScript
- frontend architecture
- UI/UX design
- design systems
- Node.js
- Next.js
- GraphQL
- Redux
- Svelte
- D3.js
- Mapbox GL
- WebSockets
- Framer Motion
- Django
- Docker
- GCP
- GitLab CI/CD
- computer graphics and rendering
- geospatial and data visualisation
- accessibility (WCAG)
- colour science (oklab/oklch)
- Jest
- Playwright
- Agile/Scrum
- Figma
- Git
- Claude Code