
Hadi Hijazi
Forward-Deployed AI Engineer | Building production-grade LLM agent systems for real operations
Salary / Daily rate
91120 Palaiseau, France
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Most AI systems fail not because models are weak, but because they are deployed without supervision, evaluation, or operational ownership. I'm an AI engineer with production experience building LLM agent systems that run inside real business workflows, not demos. My work spans agent reasoning, evaluation pipelines, and multi-agent orchestration, with a strong focus on reliability, auditability, and gradual automation. Technically, I work on LLM fine-tuning (QLoRA), hybrid rule + LLM reasoning, RAG, knowledge-graph-assisted workflows, and automated evaluation loops using tools like DSPy, Langfuse, and Arize Phoenix. I build end-to-end systems, from model training and backend APIs to production deployment and frontends. Through BLOQ, I've built and deployed vertical AI products in finance and hospitality, including: – an AI financial workforce for Saudi/GCC companies (ZATCA-compliant) – an AI operations layer for hotels that sits on top of existing PMS systems and delivers daily actionable recommendations Across both startups and enterprise contexts, my focus is consistent: – supervised agents over autonomous ones – clear agent roles and permissions – evaluation, logging, and failure analysis as first-class citizens I think of AI agents less as tools and more as managed employees. Currently interested in teams building AI-native products, agent infrastructure, applied reasoning systems, and production ML where trust and correctness matter more than hype.
Work experience
Applied AI/ML Engineer & System Architect
BLOQ AI
Feb 2023 - Present
3 years 9 months
91300 Massy, France
– Built Fikrah, an AI financial workforce that learns company workflows via screen recordings and deploys supervised agents for finance operations, compliant with Saudi/GCC ZATCA requirements. – Built OsmoseIQ, an AI operations layer for hotels that integrates with existing PMS systems, unifies guest and revenue data, and delivers daily, role-specific operational recommendations. – Architected City, a multi-agent orchestration layer using LangGraph, FastAPI, and Supabase, featuring agent roles, workflow execution, supervision logs, and observability via Langfuse. – Delivered 5 paid client projects, including F&B business intelligence systems and sales automation agents deployed in real operations. – Designed evaluation and supervision layers to ensure correctness, traceability, and controlled autonomy across agent workflows.
AI/ML Engineer
Tata Consultancy Services
Jul 2025 - Dec 2025
6 months
Paris, France
– Built an MBSE copilot using Gemini Flash and Neo4j to automate requirement extraction and traceability in aerospace systems, reducing review cycles by ~40%. – Developed a supervised S/4HANA field-mapping agent combining deterministic rules with LLM reasoning, cutting reconciliation workload by ~70%. – Designed self-improving agent evaluation loops using DSPy and Arize Phoenix to score, monitor, and refine model outputs automatically. – Built a video-to-process-flow tool using vision-language models to extract operational workflows from screen recordings.
Data Science Intern
Ekimetrics
Jun 2024 - Oct 2024
5 months
Paris, France
– Enhanced Bayesian marketing mix models by refactoring priors and feature interactions, improving ROI forecasting accuracy by ~15%. – Built unsupervised behavioral clustering models (KMeans + sequence features) for a multinational automotive client. – Optimized Databricks ETL pipelines, reducing compute time by ~40%.
Financial Data Analyst
Infovista
Jul 2022 - Sep 2022
3 months
91300 Massy, France
– Automated multi-entity reporting workflows in Power BI (-50% reporting cycle time).
Education
ESSEC | CentraleSupélec
Master's degree, Data Science & Business Analytics
2023 - 2025
1 year 10 months
Esade
Bachelor's degree, Business Administration and Management, General
2019 - 2023
3 years 10 months
HEC Paris
Exchange Semester, Data Science and Entrepreneurship
2022 - 2022
4 months
Lycée Français de Djeddah
Baccalaureate, Sciences and Mathematics with Mathematics Specialization, Mathematics
2005 - 2019
13 years 10 months
Licenses & certifications
Certificate of completion - Mathematics
Issued: –
Certificate of completion - Introduction to Python
Issued: –
Certificate of completion - Mathematics
Issued: –
Certificate of completion - Intermediate Python Programming
Issued: –
Certificate of completion - Python Programmer Bootcamp
Issued: –