Senior Software Engineer - Optimization

The opportunity

“Artificial Intelligence has shifted from prediction to practice, ushering in the autonomous enterprise—where systems of intelligence drive operations, not just support them.”

For the past eight years, we've been supporting some of the most iconic enterprises to embrace the potential of AI. Building on our experience and proven impact, we are now more committed than ever to our vision: creating a world of possibility through Superlinear productivity gains. The next step is clear: we are broadening our horizon throughout Europe, supporting the world’s most critical enterprises in their transformation. To realize this ambitious vision, we’re seeking sharp minds and steady hands: people who care deeply, are mission-driven, build boldly, and own the outcome.

That's why we are hiring a Senior Software Engineer - Optimization.

The role

As our Software Engineer specialized in Mathematical Optimization, you'll be building the mathematical engines that solve large-scale industrial optimization problems. You'll work on challenges where optimal solutions can drive millions in economic value.

What you’ll build

Optimization Solutions

• Model complex real-world problems as constraint programming problems
• Determine the model scope to maximize impact while guaranteeing tractability
• Decompose large-scale problems to achieve tractability
• Design hard and soft constraints to achieve real-world feasibility
• Design (lexicographic) objectives to achieve maximal real-world impact
• Implement multi-objective optimization with Pareto frontier computation

Natural Language Interfaces

• Design Python APIs to make constraint programming accessible to developers
• Design Python APIs to enable Large Language Models to implement and modify optimization models
• Design Natural Language Interfaces that enable business users to efficiently mitigate operational disruptions
• Design Natural Language Interfaces that enable business users to simulate and compare different scenarios
• Design Natural Language Interfaces that provide intuitive explanations for decision proposals

Scalable Solver Algorithms

• Design compilers that translate high-level optimization problem representations into efficient constraint programs
• Design (meta-)algorithms that prioritize finding good feasible solutions quickly
• Apply Reinforcement Learning to accelerate optimization algorithms
• Design distributed optimization solvers wherein multiple strategies collaborate to find good feasible solutions

Robust Software

• Develop robust and maintainable Python packages and APIs for optimization
• Develop benchmarks and evaluate software performance on those benchmarks
• Build comprehensive test suites that validate correctness and robustness
• Implement monitoring and observability for optimization systems

Who are you

Essential Experience

• Background in Mathematical Optimization through academic or industry experience
• Ideally experienced with Constraint Programming, though strong expertise in Operations Research, Metaheuristics, or Convex Optimization is equally valuable
• Proven Python programming skills with production-quality code
• Track record of solving real-world optimization problems
• Aptitude to translate business requirements into mathematical models

Skills That Matter

• Experience with optimization solvers (OR-Tools, Choco, Gurobi, CPLEX, etc.)
• Operations Research techniques and Mixed-Integer Linear Programming
• Metaheuristics
• Experience with large-scale distributed optimization
• API design and developer experience
• Knowledge of Large Language Models and their potential applications
• Reinforcement learning
• Fluency in English, any other languages is a plus

Mindset & Approach

• Pragmatic problem-solving mindset
• Clear communication of complex concepts to diverse stakeholders
• Passion for applying mathematical techniques to real-world impact
• Interest in pushing the boundaries of what's computationally possible

Why this role matters

You’ll be working on optimization problems that directly impact critical European infrastructure and enterprises. Your solutions will optimize billions in economic activity, from coordinating complex logistics operations to scheduling critical resources.

This is a unique opportunity to work with cutting-edge optimization techniques while solving problems of unprecedented scale and real-world importance. You’ll have the freedom to explore novel approaches, including the integration of AI techniques with traditional optimization methods.

What we offer

• Impact : Your algorithms will transform operations for Europe's most critical enterprises
• Challenge : Work on complex constraint satisfaction problems at massive scale
• Innovation : Freedom to explore novel techniques and AI integration
• Growth : Shape the technical direction of our optimization capabilities
• Collaboration : Work closely together with our Brussels team
• Compensation : Competitive salary with performance bonus and equity
• Benefits : Comprehensive health insurance, group insurance, meal/eco vouchers, full transportation coverage, internet allowance, and additional Superlinear holidays.
• Tools : MacBook Pro, cloud compute resources, and optimization solver licenses
• Team : Collaborate with brilliant minds in AI

Ready to solve the unsolvable?

If you have expertise in mathematical optimization and are excited about applying it to transform how complex systems operate, we want to hear from you.

Join us in building optimization solutions that will power the next generation of intelligent enterprise systems.

#J-18808-Ljbffr