The researchers will be working in the Mathematical Insights into Algorithms for Optimization (MIAO) group headed by Jakob Nordstrom (www.jakobnordstrom.se), which is active at both the University of Copenhagen and Lund University on either side of the Oresund Bridge. We are closely affiliated with the Basic Algorithms Research Copenhagen (BARC) centre, and are part of a world-leading environment in algorithms and complexity theory encompassing also the IT University of Copenhagen and the Technical University of Denmark (DTU). We aim to attract top talent from around the world to an ambitious, creative, collaborative, and fun environment. Using the power of mathematics, we strive to create fundamental breakthroughs in algorithms and complexity theory. While the focus in on foundational research, we do have a track record of surprising algorithmic discoveries leading to major industrial applications.
The MIAO research group has a unique profile in that we are doing cutting-edge research both on the mathematical foundations of efficient computation and on state-of-the-art practical algorithms for real-world problems. This creates a very special environment, where we do not only conduct in-depth research on different theoretical and applied topics, but where different lines of research cross-fertilise each other and unexpected and exciting synergies often arise. Much of the activities of the group revolve around powerful algorithmic paradigms such as, e.g., Boolean satisfiability (SAT) solving, Groebner basis computations, integer linear programming, and constraint programming. This leads to classical questions in computational complexity theory—though often with new, fascinating twists—but also involves work on devising clever algorithms that can exploit the power of such paradigms in practice.
Our most recent new line of research is on how to verify the correctness of state-of-the-art algorithms for combinatorial optimization. Such algorithms are often highly complex, and even mature commercial solvers are known to sometimes produce wrong results. Our work on designing a new generation of certifying combinatorial solvers, which output not only an answer but also a machine-verifiable mathematical proof that this answer is correct, has already received several international awards, but many more exciting problems are still waiting to be solved!
The postdoc position is a full-time research positions for an intended duration of 2 years. The PhD position is a four-year full-time employed position, but PhD positions usually (though not necessarily) include 20% teaching, in which case they are prolonged for one more year. The starting dates are negotiable, but should ideally be in August-September 2026 or earlier. All positions in the research group are fully funded, employed positions (including travel money) that come with internationally competitive salaries.
The application deadline for both positions is January 16, 2026. For more information about the postdoc position see https://jakobnordstrom.se/openings/Postdoc-Lund-260116.html and for the PhD position see https://jakobnordstrom.se/openings/PhD-Lund-260116.html. Informal enquiries are welcome and may be sent to jakob.nordstrom@cs.lth.se.
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