Julien Almarcha

Julien Almarcha

Senior AI Architect / Full Stack Developer

Go from idea to 

Services

With 15 years of experience in software and AI, I build your applications from idea to production. I focus on delivering practical, high-performance tools that solve real problems.

Example: AI integration into your systems (RAG)

Internal docs → semantic retrieval → context → grounded answers.

Docs & data
AI engine
Retriever + embeddings + LLM (guardrails, eval, monitoring)
Prompt (example)
User:
Assistant:
Sources:
  • AI Audit / Architecture Package (3–5 days) Diagnostics of AI/LLM pipelines, model strategy, scalable architecture, and ROI recommendations.
  • Turnkey AI engine setup RAG, OCR, fine-tuning, evaluation framework, and application integration.
  • Prototype delivered in 10 days Business chatbot POC, medical OCR pipeline, automated agent, etc.

Profile

Full Stack Engineer with 15+ years building complex systems across Python and React. Recent hands-on experience with RAG systems, LLMs, and AI-powered platforms at scale. I thrive in fast-paced, loosely-defined environments where I can ship features end-to-end. Passionate about making technical knowledge accessible—I've built document processing pipelines, search systems, and developer-facing tools.

Skills

Team management
Python
Full Stack
RAG/LLM
Data Engineering
DevOps

Portfolio

Two representative, production-focused projects (OCR/LLM, multi-agent orchestration, self-hosted LLM gateway).

IOLSolver

Web application for ophthalmologists to define the parameters of an intraocular lens implant. The calculations require entering dozens of values coming from ocular measurement devices. A multi-agent workflow extracts data from photos of device screens or medical reports, reducing manual entry.

Multi-agent OCR/LLM workflow diagram (photo → OCR → structure → validation → autofill)
  • OCR extraction + LLM interpretation
  • Multi-agent orchestration for reliability and coverage
  • Big time savings on forms with dozens of fields
Multi-agent OCR LLM

OpenGateLLM

API gateway to simplify self-hosted LLM usage (load balancing, cost controls, standardized access).

OpenGateLLM interface showing dashboard and cost controls
  • Single entry-point across models and servers
  • Usage guardrails (quotas, costs, etc.)
  • Designed for application integration and production rollout
Gateway LLM RAG

Experience

AI Platform Engineer

DINUM

Paris | Feb 2025 - Sep 2025

  • Built OpenGateLLM, open-source platform managing multiple GenAI servers.
  • RAG systems for context-enriched AI answers using internal documents end-to-end.
  • Integrated OCR services for automatic document extraction.
Stack: Python, FastAPI, PostgreSQL

Technical Lead

Flowbird

Besançon | Aug 2021 - Dec 2024

  • Led 10-engineer team building mission-critical ticketing for Paris transit.
  • Designed Python microservices architecture handling millions of daily transient transactions.
  • Technologies: Python, Python, React, Docker, MQTT.
Stack: Python, Flask, React, Docker, MQTT

Technical Lead

Hyvilo

Besançon | Feb 2021 - Aug 2021

  • Led 10-engineer team building mission-critical ticketing system for Paris transit microservices architecture handling millions of daily transactions.
  • Technology Stack: Python, React, Docker, MQTT.
Stack: Django, GraphQL, React, TypeScript, PostGIS

Research Engineer

University

Besançon | Sep 2019 - Feb 2021

  • Bioinformatics: built data pipelines for genomic analysis (RNA-Seq, metagenomics).
  • Processed large datasets with Python, Pandas, R.
Stack: Python, Pandas, R, Snakemake

Python Developer

QuarksSafety

Besançon | Jan 2018 - May 2019

  • Built web scraping and data extraction tools for chemical document analysis.
Stack: Python, Scrapy, BeautifulSoup

Co-founder

BlouseBrothers

France | Dec 2016 - Feb 2019

  • Built collaborative platform for medical students.
  • Full stack development.
Stack: Django, PostgreSQL, JavaScript

Lead Developer

LaboOnline

Paris | Feb 2009 - May 2014

  • Document management platform for 500+ medical labs.
  • Managed 50+ production servers.
Stack: Python, Twisted, SQLAlchemy

Education

🎓

MSc Distributed Systems & Networks

University of Franche-Comté

2004 - 2005

Key Strengths

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