Freelancer profile translated to English.
Back to original languageAbout Keenan
Software engineer specializing in quantitative development, with a dual background in software engineering and financial markets (Master ESGI Paris, Master ESG Finance).
I work on pricing, risk management, and trading infrastructure issues, combining mathematical rigor with low-latency system expertise.
🛠 Technical Expertise
✅ C++ (C++17, SIMD, HPC optimization, L1/L2/L3 cache)
✅ C# / .NET (async/await, Span, LINQ, design patterns, Clean Architecture)
✅ Quantitative Modeling (Black-Scholes, Greeks, Historical / Parametric / Monte Carlo VaR, CVaR, Kupiec / Christoffersen backtesting)
✅ Financial Infrastructure (FIX Protocol, Kafka, gRPC, REST API, SQL Server)
✅ Machine Learning applied to Finance (LightGBM, SHAP, PU-Learning, LSTM/GARCH/HMM)
💡 Flagship Projects
👉 VaREngine — C++17 VaR/CVaR calculation engine, 3-level cache (x180 speedup), 139 unit tests, REST API
👉 QuantLens — Multi-service platform: C++/gRPC risk engine, Python ML service (LSTM/GARCH), Kafka, Streamlit
👉 MLScoringKYC — AML/KYC scoring on ~100k real entries, LightGBM + PU-Learning, SHAP, FastAPI, Redis
📢 Available for missions in pricing, risk, trading infrastructure, or quantitative data. Contact me!
French
Native or bilingual
English
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- PCi33Software EngineerDIGITAL AND ITMarch 2023 - March 2026 (3 years)Paris, FranceDevelopment of an AML/KYC scoring engine (MLScoringKYC) on ~100,000 real entries, combining LightGBM, PU-Learning, and SHAP explainability, with a 35% reduction in false negatives and improved AUC-ROC. Cross-base SQL Server extraction pipeline, FastAPI + Redis + APScheduler deployment for automatic retraining.Backend development C# / VB.NET / ASP.NET WebForms on a multi-tenant BackOffice CRM (Telerik), with integration of regulatory KYC fields (SIREN, NAF, legal entities), PDF generation iTextSharp, and SHAP scoring popup via RadWindow/PageMethods.Reduction of manual processing on compliance flows by 70%.
- Theodo FintechFintech Software EngineerBANKING AND INSURANCEMarch 2023 - August 2023 (5 months)Paris, FranceAssignment at Yomoni (robo-advisor, managed ETF investments), within the quant team.Development of front-office and risk tools in Python: automation of quantitative analysis workflows, elimination of operational friction points, reduction of processing time by 80% to 95% on pricing and risk pipelines through vectorization (NumPy/Pandas).Real-time distributed architecture for feeding pricing and portfolio management models: ingestion via Kafka, normalization, and streaming quality controls.Optimization of stochastic algorithms (Monte Carlo), with speedup x4 to x12 on option pricing simulations.
- CamCha
On Malt
VBA Script DeveloperMEDICALFebruary 2025 - February 2025Bordeaux, FranceDuring this assignment, I developed and optimized a VBA solution in Excel to perform optimized searches in a CCAM database. The objective was to implement a keyword-based filtering system, display results in a structured manner, and add interactive features using checkboxes and action buttons.
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Education
- Computer Engineering and Information Systems DegreeESGI
- Financial Markets / TradingESGF2023
Certifications
- Differential EquationsMIT OpenCourseWare2024