11/12/2026 updated

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Forward Deployed Engineer & Senior Full-Stack Developer | AI Integration | Fractional CTO

Messancy, Belgium
Only remote
Master in Music/Audio Engineering
Messancy, Belgium
Only remote
Master in Music/Audio Engineering

Profile attachments

CV_Pierre_Haegeli_2026_FDE.pdf

RAGPostgreSQLNode.jsNext.jsReact.jsReact NativeDocker
AI Engineering
Expertise in LLM integration (Claude, OpenAI), RAG, pgvector, computer vision (YOLO), Speech (STT/TTS), LLM evaluations, AI privacy and consent, as well as MCP and Claude Code for agentic development with production-grade security and GDPR compliance.

Full-Stack Development
Proficiency in JavaScript/TypeScript, React/Next.js, TanStack Start, Node.js, React Native/Expo, PHP and REST APIs, enabling end-to-end delivery of custom software from prototype to production.

Cloud & DevOps / Production Architecture
Strong background in CI/CD (GitHub Actions), Docker, cloud platforms (AWS, Azure, Hetzner, Cloudflare), Supabase, security and GDPR standards, ensuring robust and scalable production deployments.

UI/UX & Design Systems
Experience with Tailwind CSS, shadcn/ui, MUI, Mantine, design systems and Figma for building consistent and user-friendly interfaces.

Databases
Hands-on experience with PostgreSQL, MySQL, MongoDB, SQLite and Oracle for data management across various project types.

Client & Delivery Management
Skills in discovery and scoping, stakeholder workshops, technical leadership, agile delivery and project management to ensure successful project outcomes.

Mobile Development
Development of cross-platform mobile applications using React Native and Expo, including iOS and Android deployments.

CMS & Web Platforms
Integration of CMS workflows using WordPress and development of multilingual CMS solutions for enterprises and public institutions.

Security & GDPR
Implementation of security standards, GDPR compliance, eIDAS-compliant e-signature integrations and AI disclosure and encryption mechanisms across projects.

Experience

Professional experience10+ years
Freelancer since2026

Languages

EnglishFluentFrenchNative speaker

Project history

Founder / Forward Deployed Engineer - AI

ABECEDIA
End-to-end delivery of custom software for SMEs and startups, from scoping to production. Embedded AI coaching including AI dev tooling setup, prototype upgrades, architecture, code and security reviews. Projects include HR decision-support platform, computer-vision POC (YOLO) for football video, and staff scheduling app. Security, GDPR and CI/CD standards applied on every project. Based in Belgium and Luxembourg.

Fractional CTO

DEVELUX
Technical lead across a SaaS portfolio including My Garage Manager, Keep Focus, InfoEcole, Devifast and KeepFood. Took an AI-built garage management app to production (web, admin, mobile app, payments, automated deployments). Rebuilt the Keep Focus interface: web + 42-screen mobile app in 6 languages. Based in Luxembourg.

Founder

GRIMZOO
Solo, end-to-end project. Memory journal with a conversational AI clone (Claude + RAG). Features include photo vision, voice transcription, text-to-speech and AI image generation. Automated LLM evals, GDPR consent and AI disclosure, encryption. Built with Web + iOS/Android (Expo), FR/EN, TanStack Start, Supabase and Hetzner.

Senior Front-End Developer

CLUBEE
Built and maintained front-end components in React and Next.js (MUI). Built MCP servers connecting the platform to AI assistants. Based in Luxembourg.

Senior Web Developer

VOUS AGENCY
Developed websites for clients in health and media. Integrated CMS workflows using WordPress. Based in Luxembourg.

Front-End Expert

SQUAREMILED
Delivered custom interfaces using React and Next.js. Based in Luxembourg.

IT Project Manager

SVB TENNIS & WELLNESS CENTER
Launched a club management system and booking site. Based in Zephyrhills, FL, USA.

Co-Founder / IT Project Manager / Front-End Lead

DOCUNIFY
B2B document platform for fund administrators and PE firms. eIDAS-compliant e-signature (DocuSign integration), hosted on Azure. Managed a team of 5 developers (Agile); Angular front-end. Based in Luxembourg.

Full Stack Developer

Earlier Roles (European Institutions, POST Group, ArcelorMittal and others)
Developed multilingual CMS, secure intranets and mobile web tools for European Institutions, POST Group and ArcelorMittal. Based in Luxembourg.

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