Developing interfaces between humans & technology.

Senior frontend consulting with 10+ years of experience on large-scale, regulated projects. Now extending into AI integration and building MCP servers.

Build & Ship

Services

Areas of expertise.

  • 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.

  • Legacy App Modernization

    Rebuilds and progressive migrations of aging platforms. Framework upgrades, refactoring, technical debt reduction, while preserving what works.

  • 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.

  • 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.

  • 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, 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

Stories

R&D
field notes.

Let's talk
about your
next challenge

EYN SRL
Lexy Callemeyn