Freelancer profile translated to English.
Back to original languageAbout Christopher
Laureate of the FINTOC data science competition (automatic document structure understanding) in 2021
Author of the book "Deep learning with Theano" in 2017
15,000 unique visitors on christopher5106 github
Graduate of the "mathematics, computer vision and machine learning" (MVA) master's program from ENS Cachan in the 4th year of Ecole Polytechnique
I have worked on numerous projects and POCs, starting from my expertise in computer vision (pedestrian detection, automatic analysis of invoices, identity documents, license plates, counterfeits, visual search, image-based geolocation, ...) and then in natural language (automatic document analysis, contracts, expense line classification, chatbots, deduplication of legal entity or product databases, ...).
I am available to support you, either as a Python/Machine Learning/AI/data science/data engineer, or in the upstream phase of your projects to discuss feasibility: nothing beats a good study before starting.
French
Native or bilingual
English
Fluent
German
Conversational
Can work on-site
Paris (up to 50km), Massy (up to 100km), Bordeaux (up to 100km), Toulouse (up to 100km), Marseille (up to 100km)
Experience
- ScenarioSenior AI developerVIDEO GAMES AND ANIMATIONOctober 2023 - Today (2 years and 8 months)Paris, FranceWorld-First Innovation: Developed a seamless attention mechanism for transformer-based diffusion models, enabling 360-degree skybox and texture generation.Model Training & Optimization: Implemented Flux 2 model training from scratch and integrated advanced pipelines (Flux 1, Qwen Image, WAN).Performance Engineering: Accelerated Flux 1 Schnell using scaled_fp8 and caching techniques; built a custom Flux 1-based upscaler.Open Source & Tools: Created model-police for LoRA classification and contributed to musubi-tuner.
- IvaluaAI DeveloperSOFTWARE PUBLISHINGJanuary 2018 - January 2022 (4 years)Île-de-France, FranceAutomatic extraction of values from scanned invoicesAutomatic analysis of contracts (segmentation into clauses, keyword extraction).Classification of expense linesDeduplication of supplier and product dataChatbotParticularly with Microsoft technologies (CNTK, ML.Net, ONNX), and ABBYY.
- Disrupting!Freelance ConsultantCONSULTING AND AUDITSMarch 2014 - October 2019 (5 years and 7 months)Paris, FranceSeveral jobs as freelancer:FITLY July 2016 – Sept 2016 https://getsmartplate.comDeep neural network trainings and optimizations. Work on request latencies.Gcloud AppEngine / Storage buckets / Datastore / Python Flask / Stackdriver monitoring. Scalability of GPU with AWS EC2 G2 and nvidia-dockerSELECTIONNIST March 2014 - July 2015Mobile website and mobile application for Android and IOS with image recognition. Image indexing and recognition technology. Transfer agreement with INRIA. Fullstack JS development. Mobile app development in AngularJS + Cordova. Webservice development in NodeJS. Test strategy and development (Jasmine+Protactor). Modernization + scalability : SI migration to Amazon Web Services. Mounting of former website with FUSE/S3FS (step 1). Worldwide acceleration and cache with content delivery network technology. Full migration of the PHP site (step 2) with S3 stream wrapper: no more data on instances' disks. Tablet version of the mobile app thanks to responsive design. Push notifications, Facebook Integration, and Deep Linking / Custom URL Schemes Virtual private cloud instantiation (route table, gateway, security profiles for instances). Continuous development (DevOps) with Chef, Docker, Vagrant and Opsworks. Technical development and management. Release V1: June 2014 Release V2: October 22, 2014 Note: Selectionnist is the best startup in France in 2015 at the IMC Awards http://lentreprise.lexpress.fr/marketing-vente/ebusiness/les-champions-de-l internet-francais-en-2015-sont_1645107.htmlTESSI Nov 2013 - March 2014Study on digital opportunities and technologies for corporate companies Technology watch and preparation of business meetings.
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Education
- Master, Mathematics and Computer ScienceEcole Polytechnique2005Master, Mathématiques et informatique