Math-Driven, Business-Focused
Guillaume Marques, PhD — Freelance Operations Research Consultant. 10 years of experience. I model, I code, I industrialize. From requirements to production deployment.
I solve linear, non-linear, discrete, and continuous optimization problems. My primary focus is on Energy, Logistics, and Mobility.
Don't settle for “off-the-shelf” solutions that don't meet your needs. I formalize your company's specific constraints into mathematical models. I leverage large-scale decomposition techniques, column generation, and matheuristics to solve your most complex instances.
I work with both open-source (HiGHS, Ipopt, SCIP) and commercial engines (Gurobi, CPLEX, Knitro). My code is not just a prototype; it is production-grade software built to tackle your most critical operational challenges.
Mathematical models are useless if they don't integrate. I provide full-stack industrialization: CI/CD, robust APIs, and cloud architecture to ensure your optimization engine is a reliable asset, not just another piece of shelfware.
I offer both time-and-materials (acting as an embedded expert for a specific project) and fixed-price project delivery.
Understanding your business problem, identifying constraints, and defining optimization levers.
Translating the problem into a mathematical model. Everything is fully documented.
Coding the resolution algorithm tailored to your time and quality requirements (exact methods or heuristics).
Designing the architecture to integrate the software into your IT system (API, database, deployment).
Defining the validation strategy, writing technical docs, and training your teams.
Developing mission-critical optimization and simulation software for the French gas distribution network (200,000 km of pipelines). National deployment in progress.
Lead Developer for a DeepTech startup (Inria spin-off). Last-mile delivery planning SaaS.
PhD on exact methods for two-echelon vehicle routing problems (urban logistics). Realopt team was a world reference in combinatorial optimization.
R&D contribution to the Julia ecosystem. Branch-cut-and-price framework.