swe flag På svenska
School of
Electrical Engineering
and Computer Science
KTH / CSC / Theory Group / Jakob Nordström / Open positions / Postdoc position D-2014-0761

The position below is no longer open. This webpage is kept for archival purposes only.

Postdoc Position in Computational Complexity and/or SAT Solving

The Theoretical Computer Science Group at KTH Royal Institute of Technology invites applications for a postdoctoral position in computational complexity and/or SAT solving.

Job Description

The Theoretical Computer Science Group at KTH (www.csc.kth.se/tcs) offers a strong research environment spanning a wide range of research topics such as complexity theory and approximation algorithms, computer and network security, cryptography, formal methods and natural language processing. We have a consistent track record of publishing regularly in the leading theoretical computer science conferences and journals worldwide, and the research conducted here has attracted numerous international awards and grants in recent years.

The postdoctoral researcher will be working in the research group of Jakob Nordström (www.csc.kth.se/~jakobn). Much of the activities of this research group revolve around the themes of proof complexity and SAT solving. On the theoretical side, proof complexity has turned out to have deep, and sometimes surprising, connections to other topics such as, e.g., circuit complexity, communication complexity, and hardness of approximation, and therefore researchers in these or other related areas are more than welcome to apply. On the practical side, some interesting problems are to gain a better understanding of the performance of current state-of-the-art SAT solvers — in particular, solvers using conflict-driven clause learning (CDCL) — and to explore techniques that would go beyond CDCL, such as approaches based on algebraic or geometric reasoning.

Within the overall framework sketched above, the postdoc will be expected and encouraged to contribute to and influence the research agenda. Taking part in teaching graduate seminar courses is encouraged but not required. Travel funding is included, and the group also receives short-term and long-term visitors on a regular basis.

The research project is financed by a Breakthrough Research Grant from the Swedish Research Council and a Starting Independent Researcher Grant from the European Research Council. A more detailed description of the project can be found at www.csc.kth.se/~jakobn/project-proofcplx. The group currently consists of one postdoctoral researcher and four PhD students (in addition to the research group leader).

This postdoc position is a full-time employed position for one year with a possible one-year extension. The successful candidate is expected to start in August-September 2015, although this is to some extent negotiable.


Applicants should have or be about to receive a PhD degree in a subject relevant for the research area, and should have a passionate interest in research. Exceptional candidates are always of interest regardless of formal prerequisites. Problem solving skills and creativity are a must.

The successful candidate is expected to have a solid background in computer science (in computational complexity or SAT solving, respectively) and preferably also in mathematics (in areas such as combinatorics, algebra and/or geometry), and should have a strong research record as witnessed by publications in conferences such as STOC, FOCS, CCC, ICALP, SODA, SAT, CP, AAAI, IJCAI, or similar, or in journals of a comparable quality.

The working language of the TCS group is English, and knowledge of English is also fully sufficient to navigate life in Sweden in general. It might also be worth mentioning that Sweden routinely scores at the absolute top in rankings of quality of life such as, e.g., the OECD Better Life Index.


KTH Royal Institute of Technology is the largest and oldest technical university in Sweden. No less than one-third of Sweden's technical research and engineering education capacity at university level is provided by KTH. Education and research spans from natural sciences to all branches of engineering and includes architecture, industrial management and urban planning. There are a total of 13,400 first and second level students and almost 1,900 doctoral students at KTH, and the university has 4,900 employees.

The School of Computer Science and Communication at KTH (KTH CSC) is one of Sweden's leading research and education institutions in information technology, with activities at both KTH and Stockholm University. We conduct education and research in both theoretical and applied computer science. Our activities in theoretical computer science range from theory building and analysis of mathematical models to algorithm construction, implementation and simulation. Applied computer science covers a wide spectrum including computer vision, robotics, machine learning, high performance computing, visualization, computational biology, neuroinformatics and neural networks, and speech and music communication. We also conduct applied research and training in media technology, human-computer interaction, interaction design and sustainable development. For more information, see www.kth.se/en/csc.


Form of employment: One year temporary position with a possible one-year extension
Work time: Full time
Start date: By agreement, but preferably no later than August-September 2015
Number of positions: 1


Application deadline: January 25, 2015
Employer's reference: D-2014-0761

In order to apply to this position, you need to log in to the KTH recruitment system at kth.mynetworkglobal.com/en/what:login/jobID:48887/. Note that you are responsible that your application is complete as per the instructions below.

The application deadline has passed and it is therefore not possible to submit any documents via the link above. If you want to apply, then send your application by e-mail directly to jakobn@csc.kth.se instead.

To receive full consideration, the application should be received by the application deadline. Applications will be reviewed until the position has been filled.

The application should include the following documents:

  1. Curriculum vitae
  2. List of publications
  3. Brief research statement with description of professional interests and goals in research
  4. Copy of PhD diploma (if applicable)
  5. Names and addresses of three or more individuals who will provide letters of recommendation
Please observe that all the documents above should be in English (or for official documents possibly in Swedish).

Writers of recommendation letters should submit their letters directly to jakobn@csc.kth.se by the application deadline. Please state the reference number D-2014-0761 in the subject line.


For enquiries about the research project please contact:
Jakob Nordström, Assistant Professor
Phone: +46 8 790 6919
Email: jakobn@csc.kth.se

For enquiries about employment conditions please contact:
Maria Widlund, HR Manager
Phone: +46 8 790 9754
E-mail: mwidlund@kth.se

Contact information for the trade union representatives can be found at intra.kth.se/en/administration/rekrytering/annonsering/fackrepresentanter-1.500898.

Published by: Jakob Nordström <jakobn~at-sign~kth~dot~se>
Updated 2018-06-07