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Comment by polivier
I'm Phil and I have a PhD in computer engineering, specializing in operations research: mathematical optimization (MILP, etc), constraint programming, and others. For the past several years I've implemented custom, production-ready solutions for a variety of problems (scheduling, routing, and so on). Recent work includes a constraint programming solution for goal-based selection of indexes in Postgres, a heuristics-based scheduling tool used in hundreds of vehicle workshops around the world, and an optimization model used for scheduling autoclave cycles in a drug manufacturing facility. I'm also open to freelancing.