Developing interfaces between humans & technology.
Senior frontend-focused software engineer with 10+ years of experience on large-scale, regulated projects. Now extending into AI integration and building MCP servers.
Services
Areas of expertise.
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Frontend Engineering
Custom interfaces in TypeScript and Angular. Design systems, complex state management, component libraries, micro-frontends. Architected to stay maintainable as the product grows.
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Legacy App Modernization
Rebuilds and progressive migrations of aging platforms. Framework upgrades, refactoring, technical debt reduction, while preserving what works.
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AI Integration
LLM application engineering, building MCP servers, agentic workflows. Cloud APIs or self-hosted local models, for sensitive data that can't leave your infrastructure.
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UX & Accessibility
Balancing modern, polished interactions with accessibility for everyone, guided by empathy, A/B testing, and metrics. Backed by a UX/UI design degree and a lifetime building interfaces, since my teens.
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Performant Architecture
SSR, frontend architecture decisions, build optimization, CI/CD, Core Web Vitals.
For platforms where speed and reliability are non-negotiable.
Beyond the code
A collaborative teammate
At home in Agile teams, working closely with design, product, and backend, and ready to lead when it adds value.
Scrum Master · PSM I
Toolbox
Languages
TypeScript, JavaScript, HTML5, CSS, Sass, LESS, PHP, Rust
Frameworks
Angular, Angular Universal, RxJS, NgRx, NGXS, Nx, React, Node.js, NestJS, Bootstrap, jQuery
AI
Claude / Anthropic, MCP, AI agents
Quality & DevOps
Unit testing (Jasmine, Karma), E2E, Puppeteer, Storybook, CI/CD, Git, GitHub, GitLab, Jenkins, Azure DevOps, Tailscale, Webpack
Integrations & CMS
Okta / IAM, Google Maps API, Google Analytics, Google Tag Manager, WordPress, WooCommerce
Let's talk
about your
next challenge
EYN SRL
Lexy Callemeyn
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Avenue Arnaud Fraiteur 15-23
1050 Ixelles, Brussels
Belgium - lexy@eyn-solutions.com