I build RAG pipelines, AI agents, and LLM backends that run in production, not just in a notebook. One cut clinical report writing from 3 hours to 45 minutes. Another answers guests in 8 languages in under a minute.
AI engineer, generative AI specialist, engineering degree in AI and Data from Centrale Méditerranée. I have shipped LLM products in healthcare, edtech, and traveltech, on real user data with real constraints.
▸ What I build
RAG chatbots that answer from your documents instead of guessing
AI agents and multi-step workflows for research, reporting, and automation
LLM backends and APIs (LangChain, LangGraph, FastAPI, OpenAI, Mistral, Claude)
Document pipelines: extraction, structured outputs, PDF generation
LLM MVPs and prototypes to test an idea before you commit budget
▸ Recent work
HealthTech and EdTech, United Crocos (2025 to 2026)
Built the AI engine behind a clinical reporting product used by psychologists: LLMs, retrieval over a curated knowledge base, and agents that draft and refine each section. Report writing dropped from 3 hours to about 45 minutes, and the 3 hour baseline was already AI-assisted. Domain experts rated the output higher in quality than the previous tool. I designed the retrieval pipeline with two research labs, built the FastAPI service with SSE streaming and structured outputs, and migrated the model stack to a self-hosted European provider for compliance.
TravelTech, Autonomya (freelance)
AI messaging system for property managers. Automatic guest replies from a per-property knowledge base, guide translation into 8 languages, upsell suggestions. Response time dropped to under a minute. 5/5 client rating.
▸ Highlights
1st place, Airbus Helicopters NLP hackathon. Fine-tuned BERT for legal text summarization with multi-inference reranking. Team of 5.
+50% realism on synthetic training images for aerospace and defence computer vision (Euranova R&D)
Built a Stripe-integrated marketplace that processed 25K euros in its first months
▸ How I work
I start by telling you whether your problem actually needs an LLM. A lot of what gets scoped as "an AI agent" is really a retrieval problem or a database query, and saying so early saves you money. Once scope is agreed, you get working software in small increments rather than one big reveal at the end.
A good fit if you have documents, workflows, or a support load that should be automated, and you want something maintainable after I hand it over.
Probably not a fit if you need one-off prompt tweaks, or the goal is to add AI because it sounds good.
Stack: Python, LangChain, LangGraph, LangSmith, FastAPI, OpenAI, Mistral, Claude, PyTorch, Docker, SQL, vector databases
English, French, and Arabic. I usually reply within a few hours.
Tell me what you are trying to build and I will tell you how I would approach it, including if I think it is the wrong approach
Python
AI Agent Development
Chatbot Development
Chatbot Integration
Retrieval Augmented Generation
AI Model Training
LangChain
Generative AI
LLM Prompt Engineering
API Integration
Automation
OpenAI API
Claude
ChatGPT
FastAPI
Machine Learning
Data Extraction
Artificial Intelligence
Natural Language Processing
Vector Database
Khales N.
Paris, France
$25/hr
5.0
3 jobs
I' am developer experienced in building iot devices including programing and design PCB
Programming for 8 to 32 bit MCUs ESP32, Arduino
Design PCB EASY EDA Pro
Design PCB 4 Layers
Design pcb 4 layer stm32h743 hd lcd 7 inch
ili9488 lcd complete pcb integration
Skills in rs 485 UART and CANBUS .
Skills in 5G 4G 3G sms data transfert. Security iot for Wifi failure
Skills Simcom dual sim A7600 serie
Standalone Mcu with Simcom connected to Firebase
Websocket data process with esp32
Stm32h7 full LTDC lcd 24bit rgb888 management with sdram, flash ,dma2d and Freertos Integration
Cube programmer boot loader for stm32h743iit6 and Serial debug for cube programmer direct operation erase dowload asset to flash.
🔧 Technical Skills Demonstrated
1. Memory Architecture & Optimization
Skill Achievement
Memory-mapped QSPI Configured W25Q256JV in Quad Mode, memory-mapped at 0x90000000
SDRAM integration 32MB framebuffer at 0xC0000000 with LTDC
AXI SRAM optimization
Performance tuning 84% decode improvement (4075ms → 661ms)
MPU configuration Proper cache policies for QSPI, SDRAM, and AXI SRAM regions
2. JPEG Decoding & Image Processing
Skill Achievement
libjpeg integration Successfully ported to STM32H7 with custom memory allocator
Hardware JPEG Attempted and debugged (learned SR register error decoding)
Color space conversion RGB888 → BGR swap for LCD compatibility
Memory management Custom aligned malloc for JPEG workspace
Large image support Successfully decode 1024×600 JPEGs
3. Display & Graphics
Skill Achievement
LTDC configuration 1024×600 RGB888 display output
DMA2D (Chrom-ART) Hardware-accelerated fills, copies, and alpha blending
Double buffering Multiple decode buffers for tear-free display
Text rendering Custom font engine with Arial fonts (56, 42, 36pt)
Alpha blending Glyph rendering with A8 masks
4. Peripheral Integration
Peripheral Implementation
QSPI Quad mode, memory-mapped, JEDEC ID detection
FMC/SDRAM 32MB configuration, timing tuning
DMA2D M2M, M2M_PFC, R2M modes with R/B swap
LTDC Layer configuration, framebuffer management
I2C Touch controller interface
USART/UART Debug console output
5. System-Level Skills
Skill Application
Cache management SCB_Clean/Invalidate for coherency
MPU configuration Region protection and cache policies
Error handling JPEG header validation, timeout detection
Back end and front-end web development mainly for IoT applications. Node js. Android Studio
Internet of Things Solutions Design
Multilayer PCB
PIC Programming
Internet of Things
Cesar Y.
Paris, France
$50/hr
5.0
2 jobs
Hello ! Im Cesar, an Electronics Design Engineer with over 8 years of experience in various fields such as power electronics, motor control, digital high-speed, low-level embedded programming, and signal integrity/EMI. My goal is to deliver a fully functional and reliable circuit board or electronic product tailored to your needs. This includes providing the schematic, PCB layout, MCU firmware, and everything required for your project. If you're looking for a skilled electronics engineer with a broad range of capabilities, don't hesitate to contact me :)
Multilayer PCB
PCB Design
Electronic Circuit Design
Layout Design
Design Simulation
Embedded System
Engineering & Architecture
Electrical Engineering
Nikita K.
Paris, France
$90/hr
5.0
4 jobs
Software Engineering Consultant and Tech Manager with 15 years
of experience. Credited as UI Engineer of 3 Battlefield games, two
products at Spotify, including the UI ads manager for 300mln MAU.
As a manager, worked as Head of Front End Engineering at
CloudQuery, Co-founder/CTO at 0+X, CTO at Groupon Russia and
Co-founder of gaming startup. Hired more than 30 engineers in
different projects during my career
Passionate about user experience, collaborating with design teams
and conducting user research.
Equally compatible with big corporations and small dynamic startups.
Main stack: React.js, TypeScript, Next.js, Node.js, CSS.
Additional technical experience includes Python, Django, Go,
Docker, Terraform, AWS, Objective C, Erlang and ActionScript.
* Worked on Battlefield 1, Battlefield V and Battlefield 4 games at
DICE/Electronic Arts (React on Frostbite, TypeScript, MobX, etc)
* Worked at Spotify with a team of Machine Learning engineers,
React
TypeScript
D3.js
WebGL
Three.js
WordPress
JavaScript
Node.js
Mathias M.
Paris, France
$50/hr
5.0
6 jobs
I have been working in my own studio over the past 4 years. I will do my best to create or arrange the perfect sound for you!
•••Music production •••
- Original soundtracks for movies, video games
- SFX creation
••• Audio editing and post production for podcasts •••
- Cutting unwanted noises, long pauses, hesitations
- Adding intros/outros
- Dynamism of sound (gain automation, compression, EQ, mixing and mastering)
- Custom music creation (for podcasts, movies, ads etc)
- Make audios ready to upload to platforms (Spotify, Itunes, Audible, Amazon etc)
- Audio restoration (clean background noises, clear voice)
I'm very attentive to client's needs, and always willing to deliver the best work possible.
Looking forward to share my creative ideas!
Music Production
Podcast Editing
Audio Editing
Audio Engineering
Audio Post Production
Music Arrangement
Sound Mixing
Audiobook
Ableton Live
Audio Effects
Sound Design
Audio Mastering
Stem Mixing & Mastering
Soundtrack
Video Game Music
Alexandre B.
Paris, France
$75/hr
4.9
94 jobs
Greetings !
I am a Georgia Tech Engineer, with extra diplomas from the French Arts et Métiers ParisTech. As a Freelancer, I specialize in the full-stack design of products destined for production : 3D printing, machining, injection molding and more, but also electronics and programming in order to create functional prototypes.
I abandoned a career in industrial management in order to start my product design and prototyping company : thus I know all about most production methods, and can advise you as to the manufacturing of your 3D models. I can also offer to make prototypes of your products, using 3D printing and Arduino-based electronics.
I operate my own registered company, called Studio Septentrion. I can therefore offer official invoices, NDAs and other business-related formalities if needed.
Looking forward to working with you,
Alexandre B.
studioseptentrion.com/freelance-3d-design-and-printing
Bonjour !
Ingénieur des Arts et Métiers ParisTech et de Georgia Tech, je suis spécialisé en conception et prototypage de produits destinés à la production : mécanique, électronique, programmation...
Je dispose d'années d'expérience en CAO et méthodes de fabrication, et je peux prototyper vos produits en employant de l'impression 3D et de l'électronique Arduino.
Au plaisir de travailler avec vous,
Alexandre B.
studioseptentrion.com
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