Ex Quant Ex team lead

Haroun Guessous

Ex Quant Ex team lead

Available to hire

Ex Quant Ex team lead

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

French
Fluent
English
Fluent
Arabic
Advanced
Spanish; Castilian
Intermediate

Work Experience

Applied AI Software Engineer at Stingray Digital
January 1, 2026 - Present
Architected a Kubernetes multi-tenant agent platform with isolated per-user execution environments and a custom MCP gateway routing tool calls across 16 internal services; reduced end-to-end agent latency by 9% and eliminated cross-tenant state leakage. Built an LLM API proxy (APISIX + Rust) unifying 7 providers with per-request cost attribution; surfaced $9K/month in previously untracked inference spend across 11 teams, enabling model-level budget enforcement. Refactored production conversational AI layer (Teams chatbot + Electron desktop app, 900 users): decomposed monolithic inference loop into typed pipeline stages, reducing error rate by 35% and p95 latency by 55%.
Software Engineer, Quantitative Research at CDPQ
October 1, 2024 - January 1, 2026
Built a multi-factor portfolio optimization engine (Python/cvxpy) with risk-parity and mean-CVaR constraints backed by a Snowflake pipeline; reduced tracking error by 15% and solver runtime by 40% via constraint reformulation and warm-starting. Developed a TypeScript dataset processing library consolidating 3 divergent visualization pipelines into a single typed interface; cut cloud costs $13K/year and reduced per-analyst setup time from hours to minutes.
Software Engineer, Intern at CDPQ's Otera Capital
May 1, 2023 - January 1, 2024
Built a Monte Carlo portfolio simulation tool (Flask + React + PostgreSQL + Airflow) replacing a manual Excel process; compressed per-report analysis time from 15 hours to 3 hours (5× speedup). Automated currency rate updates and cashflow reporting via AWS-deployed Airflow DAGs; reduced report generation time by 40%.
Software Engineering Intern at OneDesk
May 1, 2022 - December 1, 2022
Implemented a matrix factorization recommender (C++) over user-workflow configuration data; surfaced personalized automation suggestions that reduced setup time by 87%.
Software Engineering Lead at McGill Formula Electric
September 1, 2021 - December 1, 2024
Led 6-person embedded/vision team (C/C++, OpenCV) for Formula SAE EV; shipped ABS (32% faster response) and a driver-fit measurement system (99.3% accuracy).

Education

Master’s in Computer Science, Machine Learning at Université de Montréal
January 11, 2030 - June 29, 2026
Bachelor of Engineering in Software Engineering, Minor in Finance at McGill University
January 11, 2030 - June 29, 2026

Qualifications

Georges-Baril Scholarship
January 11, 2030 - June 29, 2026
Bourse d'excellence ESP
January 11, 2030 - June 29, 2026
Rubin Gruber Scholarship
January 11, 2030 - June 29, 2026

Industry Experience

Software & Internet, Media & Entertainment, Financial Services, Professional Services