- Mixed Integer Nonlinear programming- Matheuristics- Prototyping

Optimization projects for decision-making.

Tech cofounder of Atoptima, a company that produces optimization software applications for complex operations planning in supply chain. - Supervised development and deployment of the stack: design, proofs of concept, business rules, productivity tools, technology intelligence.- Main author of Coluna, an open-source branch-cut-and-price framework in Julia.- Front-end lead developer (marketing website, solution visualizations, product UIs) - Mentor of a front-end software engineer and of MSc student on the branch-cut-and-price

Research on exact mathematical optimization methods for the two-echelon capacitated vehiclerouting problem for urban logisitics.- Developed of an exact optimisation method which is the state-of-the-art for the two-echelon vehicle routing problems.- Closed all the literature instances for the two-echelon capacitated vehiclerouting problem.- Closed 90% of literature open instances for the two-echelon capacitated vehiclerouting problem with precedence constraints at intermediate warehouses and time-windows at customers.- Taught linear programming, database design, and SQL to MSc students.- Recipient of "Bourse de Mobilité Internationale" from Programme Doctorat International IdEx de l'Université de Bordeaux and spent 3 months in Universidade Federal Fluminense (Brazil).- Main contributor to Coluna, DynamicSparseArrays, and BlockDecomposition.- Three papers published in top-tier academic journals.

Research, support, and maintenance of BaPCod, large-scale problem optimization framework of the research team.- Development of the subgradient algorithm for column generation. Benchmarks against the generalized assignment, the single-mode multi-item lot-sizing, the cutting stock, and a machine scheduling problem- Integration of BaPCod with JuMP (a mathematical programming language in Julia). Most parts of my work became public as the Julia low-level interface of VrpSolver.- Bug fixes and support for PhD candidates of the research team.

Sheet metalwork to build custom commercial kitchen equipment. Worked on sheet cutting and folding.

Crew member. Worked in the kitchen, front desk, drive, and dining room. Sometimes responsible for "working areas" and trained some newcomers.

- Migration of websites hosted PHP3-4/MYSQL4 servers to new PHP5/MYSQL5 servers- Development of a website to benchmark different hosting packages (LAMP stack)