About Haroun
I help startups and companies design and build AI/LLM-powered applications: RAG pipelines, FastAPI microservices, and full-stack dashboards (React/Next.js + Tailwind).
With experience in a YC-backed startup (Nexus), public sector modernization (DB2 migration, APIs), and medical AI research (CNN, imaging), I combine hands-on engineering with product thinking.
My focus: ship fast prototypes, scale reliable pipelines, and bridge AI research with productio
French
Native or bilingual
English
Fluent
Dutch
Conversational
Can work on-site
Bruxelles (up to 50km)
Experience
- Public SectorProductOwner / Software ModernizationAugust 2024 - Today (1 year and 10 months)Belgium• Leading modernization of financial management systems (DB2 migrations, legacy refactor into APIs).• Designed theoretical software architecture and supervised a team of 3 developers.• Wrote SQL queries and migration logic to ensure data consistency.• Defined business features and aligned dev team with administrators and legal requirements.
- YC startupML/Full-Stack EngineerDecember 2023 - June 2024 (6 months)• Shipped AI/LLM workflows as containerized servers (RunPod deployments).• Designed summarization & chunking strategies for RAG pipelines.• Built FastAPI microservices and managed queues (Kafka).• Developed workarounds for restrictions affecting EU users.• Implemented KPIs to monitor server load and performance.• Prototyped frontend components (React + TailwindCSS).• Explored voice integrations (Microsoft Speech API, ElevenLabs).• Translated business requirements into LLM-oriented solutions.
- Université libre de BruxellesComputer Vision Researcher – Medical ImagingDecember 2022 - November 2023 (11 months)• Conducted one year of applied research on CNNs for medical image analysis.• Built reproducible pipelines: dataset preprocessing, CNN training, and model evaluation.• Applied rigorous methodology and experimental design.
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Education
- Master of Engineering in computer ScienceUniversité Libre de Bruxelles (ULB)2022Summa Cum Laude
- Exchange Program in Computer ScienceKeio University2022Exchange Program in Computer Science GPA 4/4