Aalto University is where science and art meet technology and business. We shape a sustainable future by making research breakthroughs in and across our disciplines, sparking the game changers of tomorrow and creating novel solutions to major global challenges. Our community is made up of 16 000 students and 5 200 employees, including 446 professors. Our campus is in Espoo, Greater Helsinki, Finland. Diversity is part of who we are, and we actively work to ensure our community’s diversity and inclusiveness. This is why we warmly encourage qualified candidates from all backgrounds to join our community. We are currently seeking two highly motivated doctoral researchers to join the Cyber-physical Systems Group at Aalto University’s School of Electrical Engineering for an ERC Starting Grant-funded project focused on continual reinforcement learning for real-world systems. The grant provides a stable, well-resourced four-year research environment to tackle a problem that classical RL theory is not built for: real systems don’t reset, failures can be irreversible, and the real world keeps changing. Standard RL finds policies by optimizing over many hypothetical futures. Under non-ergodic dynamics, such an average may differ arbitrarily from what the individual agent experiences as it lives out one trajectory over time. Furthermore, RL typically seeks a time-invariant policy that cannot adapt to a changing environment. This project addresses both challenges simultaneously, combining trajectory-centric objectives with adaptive, context-dependent policies. This enables autonomous vehicles to adapt to seasonal changes over years, manufacturing systems to evolve with production demands without downtime, and medical monitoring to personalize to patients over decades. The successful candidates will develop fundamental theory and practical algorithms that move reinforcement learning closer to real-world systems. Position 1 will focus on trajectory-centric optimization, Position 2 on adaptive policies, and both will work jointly to integrate the two approaches into a single RL algorithm. While the work is mainly methodological and theoretically focused, our Aalto robot lab offers the possibility to evaluate the algorithms through practical experiments, e.g., on robot arms or quadruped robots. Research focus This project sits at the intersection of two problems: connecting ergodicity theory to reinforcement learning is a very recent development, and enabling RL agents to safely detect and adapt to a changing environment is a timely and active research area. Combining trajectory-centric objectives and adaptive, context-aware policies is new territory. The two doctoral researchers will drive this forward from these two complementary angles and will work closely together to integrate both into a single algorithm: Developing theory for trajectory-centric stochastic optimization under non-ergodic dynamics; Implementing practical RL algorithms that optimize long-term performance of individual agents; Developing change detection algorithms to infer when a policy is no longer valid and needs to be adapted; Implementing efficient policy-adaptation algorithms with safety guarantees; Integrating those advances into state-of-the-art RL algorithms; Validating the algorithms in relevant simulation environments and hardware experiments. Requirements Eligible candidates should have Master’s degree in computer science, mathematics, electrical engineering, or related fields; Fluent written and verbal communication skills in English; Ability to work both independently and collaboratively as part of a research team. If you are chosen for this position, you will apply for the study right in doctoral studies at Aalto University School of Electrical Engineering. Thus, please see the student information and admission criteria at https://www.aalto.fi/en/study-options/aalto-doctoral-programme-in-electrical-engineering. Desired background We are looking for candidates with a strong background in one or more of the following areas: Stochastic processes, ideally including a background in ergodicity theory; Reinforcement learning, dynamic programming, and Markov decision processes; Programming skills (Python). What we offer Fully funded doctoral researcher’s position at Aalto University, which is consistently ranked among the top universities in Europe; The position is fixed term and follows the school’s standard 2+2 model. It will be made initially for two years, with a six-month probationary period, and extended by two further years after a successful mid-term review, giving a total duration of four years; The position starts in January 2027 or as mutually agreed; The starting salary for a doctoral researcher is 3143 €/month; Opportunity to work on a high-impact research project; You will join a young and dynamic research group with ample opportunities for collaboration and exchange of ideas. The group is well connected internationally, with active research ties to institutions including RWTH Aachen University, KTH Stockholm, and the London Mathematical Laboratory, among others, and there is potential for research visits to these and other partners over the course of the PhD. Ready to apply? To apply, please submit your application through our recruitment site (“Apply now!” at the bottom of the page) by October 23, 2026 by 23.59 (EEST). Please include the following application materials in English and pdf-format: Motivation letter, please indicate in the letter also which of the two positions you apply for; CV including information of at least two referees; Copy of your academic transcripts and diplomas for Bachelor’s and Master’s degrees. Please note: Aalto University’s employees should apply for the position via our internal HR system Workday (Internal Jobs) by using their existing Workday user account (not via the external webpage for open positions). If you are a student or visitor at Aalto University, please apply with your personal email address (not aalto.fi) via Aalto University open positions. For more information about the roles, please contact Dominik Baumann (dominik.baumann@aalto.fi). For questions related to the application process, please contact HR Advisor Johanna Haapalainen (hr-elec@aalto.fi). We will go through applications, and we may invite suitable candidates to interview already during the application period. We aim to have a transparent and equal recruitment process, so feel free to ask us for feedback. Want to know more about us and your future colleagues? You can watch these videos: This is Aalto University! Aalto University – Towards a better world and Shaping a Sustainable Future. Read more about working at Aalto: https://www.aalto.fi/en/careers-at-aalto and check out our new virtual campus experience: https://virtualtour.aalto.fi About Finland Finland is a great place for living with or without family – it is a safe, politically stable and well-organized Nordic society. Finland is consistently ranked high in quality of life and was listed again as the happiest country in the world: World Happiness Report For more information about living in Finland: Aalto Careers for International Staff. More about Aalto University: Aalto.fi youtube.com/user/aaltouniversity linkedin.com/school/aalto-university/ www.facebook.com/aaltouniversity instagram.com/aaltouniversity To view information about Workday Accessibility, please click here. Please see more of our Open Positions here. Aalto University is where science and art meet technology and business. We shape a sustainable future by making research breakthroughs in and across our disciplines, sparking the game changers of tomorrow and creating novel solutions to major global challenges. Our community is made up of 16 000 students and 5 200 employees, including 446 professors, working on our dynamic campus in Espoo, Greater Helsinki, Finland. Diversity is part of who we are, and we actively work to ensure our community’s diversity and inclusiveness. This is why we warmly encourage qualified candidates from all backgrounds to join our community.

2 Doctoral Researchers in Reinforcement Learning.

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