Optimization Engineer, Working Student (m/f/d)

Join Aqarios to Redefine the Future of Computing!

At Aqarios, we want to change how the world solves hard problems. We use quantum computing to tackle some of the most complex challenges companies face across industries. Join us and you'll work on technology that's still being figured out, in a setup that's flexible and gives you room to own what you do. Ideally you'd be with us in our Munich office, though remote within Germany works too.

Who We Are

Aqarios was founded to close the gap between quantum computing and problems companies actually need solved. Our aim is to make quantum genuinely useful for the hard, complex challenges that come up across industries. We work with large enterprises to do that, sometimes through Luna, our platform, and sometimes through solutions we build for a specific customer. We're a team of just over 10, spun out of LMU Munich's QAR-Lab. That means there's real academic depth behind what we do, paired with the day-to-day of shipping software that customers rely on.

Your Tasks

• Designing reformulations between problem classes, so every solver gets a formulation it supports, across variable domains and the degrees of objectives and constraints
• Pre-solve and preprocessing, tightening formulations, eliminating redundant constraints and deriving valid new ones that shrink the search space
• Post-processing solver solutions with local search, greedy heuristics and feasibility repair
• Making sure the maths behind all of this is actually correct, with arguments that hold up, not just tests that pass
• Implementing your methods in the pipeline yourself, including runtime and memory optimization.

Your Qualifications

• Strong mathematics, especially in combinatorial optimization, linear and integer programming
• You notice when a reformulation is subtly wrong, and you can show why
• Genuine interest in quantum computing, a large part of your work feeds our quantum solvers
• Strong Python, plus enough Rust or C++ to find your way around a codebase
• Nice to have: exposure to QUBO or Ising formulations, decomposition methods like Benders, or pre-solve libraries like PaPILO from the SCIP suite
• Enrolled as a student (Werkstudent requirement) in Math, CS, Physics, or something adjacent. Late Bachelor's or Master's is the sweet spot
• You ask questions when you're unsure and take feedback well. Admitting you don't know something is genuinely fine here
• Based in or near Munich, or elsewhere in Germany if you work remotely

Your Benefits

At Aqarios, you’ll have the chance to grow alongside a company at the forefront of quantum innovation, building a career in a rapidly expanding field.

• A close look at deeptech, right where mathematics meets real software
• Real influence on where our optimization pipeline goes
• Flexible work arrangements that adapt to your studies and exam phases
• A small team that supports each other, an office in central Munich and regular team events
• A Wellhub membership for gyms and fitness

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🚀 Don’t just work - make an impact. Join Aqarios and help us shape the future of computing, one breakthrough at a time!