Doctoral Researcher/Postdoctoral Researcher, AI/ML-assisted RF transceiver linearization, control, modeling, and optimization

We are now looking for a

Doctoral Researcher or Postdoctoral Researcher

to join us in the Radio Engineering Group at the Centre for Wireless Communications (CWC) at the Faculty of Information Technology and Electrical Engineering (ITEE).

The research group has a broad focus on RF transceivers, spanning RF integrated circuits and antenna design, signal processing, modeling, and system-on-chip development. Our research is interdisciplinary, at the intersection of wireless communications, radio engineering, and experimentally oriented signal processing. Researchers in the group combine theory and practice to tackle future challenges, making use of our world-class RF laboratory and conducting over-the-air experiments.

We are offering a position for a Doctoral or Postdoctoral researcher in AI/ML-assisted RF transceiver linearization, modeling, and optimization. 

About the job

Artificial intelligence is gaining popularity in the field of RF transceivers, spanning from design tools and simulations to real-time control, optimization, and RF impairment mitigation. We have two different topical areas that the researcher can focus on:

Topical area 1:

The first topic is AI/ML-assisted digital predistortion (DPD) and transmitter array optimization. The work involves behavioral modeling of power amplifiers, design of digital predistortion algorithms, and experiments and testing in the RF laboratory using both conducted and over-the-air measurements. The scope, activities, and schedule of the work and activities may include some of the following:

• Develop new AI/ML-assisted models, algorithms, and concepts for the linearization of transmitter arrays, mainly focusing on digital predistortion (DPD) techniques.
• Develop an algorithm framework from theoretical findings up to laboratory proof of concepts and measure results using the University of Oulu's world-class RF laboratory facilities.
• Work together with the wider research team to integrate methods and findings for the combined concept, innovate ideas, and document the work in academic publications

Topical area 2:

The second topic focuses on AI/ML-assisted RF system design, modeling, control, and optimization. The work involves AI-based modeling and control of the transceiver chain, including power consumption optimization, calibration, and beamforming. The work may also involve RF circuit design tasks, depending on the candidate. Experiments and testing in the RF laboratory, including both conducted and over-the-air measurements, are also essential for this position. The scope, activities, and schedule of the work and activities may include some of the following:

• Develop new AI/ML-assisted models, algorithms, and concepts for the RF systems to aid design, control, and optimization of RF transceivers and their controls
• Perform complex conducted and over-the-air measurements and analyze the measurement data to model complex hybrid beamforming transceiver systems and optimize their performance
• Work together with the wider research team to integrate methods and findings for the combined concept, innovate ideas, and document the work in academic publications

In both positions, the work can be expanded in different directions based on the candidate's own interests and project needs. You will also participate in various activities as a coworker on the project team, bringing wide expertise across different areas of transmitter linearization and optimization.

What we offer

• World-class RF laboratory with measurement capabilities from components to complete systems across a wide range of frequencies.
• Industry-connected projects providing opportunities to develop practical skillsets alongside deep academic knowledge. 
• Wellness benefit ePassi covering sport, culture, and well-being. Read more about other staff benefits. 
• Development and career options of the big organization.
• Work that matters and a workplace that promotes flexibility and work-life balance. Read more about working with us.
• Our Buddy Programme and Spouse Network support you and your close ones in settling into Oulu.
• We have an HR Excellence in Research -quality label, which is a recognition awarded by the European Commission for the development of researchers’ working conditions and careers. 
• Finland is one of the most livable countries in the world, with a high quality of life, safety, an excellent education system, and a competitive economy. Read more about living in Oulu.

Who are you?

For the Doctoral Researcher position, we require from you:

• a Master’s degree in Electrical Engineering, Communications Engineering, Computer Science, Mathematics, or a related discipline. A Master's degree must have been completed before the start of the doctoral researcher's work.
• Skills and motivation for doctoral studies.
• Fluency in written and spoken English.
• You must apply for the right to study for a doctoral degree at the beginning of your employment in accordance with the requirements of the University of Oulu Graduate School (UniOGS). 

For the Postdoctoral Researcher position, we require from you:

• A doctoral degree in Electrical Engineering, Communications Engineering, Computer Science, Mathematics, or a related discipline. The degree must have been completed before the application deadline. The degree must have been obtained within the past 10 years.
• Ability for independent scientific or work.
• Fluency in written and spoken English.

In order to succeed and enjoy the position, we also expect;

• Experience in, and/or passion for, combining theoretical ideas with practical measurements and applications.
• Familiarity with at least one of the following, depending on the topical area: Digital Predistortion, PA modeling, AI/ML methods and tools, algorithm design for digital front ends, RF controls, RF system design, RF circuit design, or hybrid beamforming.
• Ability to work independently and within a diverse, interdisciplinary team consisting of people from different fields, including antennas, RF system design, and signal processing.
• Openness to other scientific disciplines and to multidisciplinary approaches.

We also appreciate:

• Experience in, and/or knowledge of using different RF measurement equipment for performing microwave and/or millimeter-waveThe  measurements with modulated signals and measurement automation.
• Previous experience in AI/ML tools and models, behavioral modeling, and learning architectures.
• Knowledge or experience in algorithm implementation on FPGA platforms and digital front-end signal processing. Knowledge of RF transceivers, RF impairments, antennas, and RF power amplifiers.
• Knowledge of wireless communication systems and signal processing, including beamforming, wireless standards, and standardized waveforms.
• Good mathematical skills and the capability of applying them to various problems.

Salary

Doctoral Researcher position is fixed-term for 3 years as of 01.09.2026 or as soon as possible thereafter. The salary will be based on levels 2–4 of the demand level chart for university-level teaching and research staff at Finnish universities. In addition, a salary component based on personal work performance will be paid (up to 50% of the job-specific component). The starting gross salary will be approximately € 2,800- € 3,000 per month, depending on qualifications. A 6-month trial period applies to the position. 

The postdoctoral researcher position is fixed-term for 2 years as of 01.09.2026 or as soon as possible thereafter. The salary will be based on level 5 of the demand level chart for university-level teaching and research staff at Finnish universities. In addition, a salary component based on personal work performance will be paid (up to 50% of the job-specific component). The starting gross salary will be approximately € 3,800–€ 4,200 per month, depending on qualifications. A 6-month trial period applies to the position. 

How to apply?

Interested? If yes, please apply by 2 August 2026 (23:59 Finnish local time) through our recruitment system.

The application should be written in English and include the following:

• Cover letter (max. 1 page), which should include an introduction of yourself and your academic background, and a description of your research interests and motivation towards doctoral studies. Please also include a description of the preferred topical area.
• CV following the guidelines of the Finnish National Board on Research Integrity TENK (max. 3 pages).
• Coarse research plan proposal following the guidelines of the Academy of Finland (max. 4 pages + references) reflecting the main interest of the researchers in the topic.

Later in the recruitment process, the candidates may be asked to provide contact information for two (2) referees and copies of their degree certificates and transcripts.

The eligible applicants fitting best in the profile expected for the position will be invited to an on-site or remote interview. The shortlisted candidates will also be asked to submit their diplomas, and their references will be contacted. All applicants will be notified during the selection process.

We welcome applicants from all backgrounds, including people of different ages, genders, languages, cultures, and minority communities.

Contact Information

If you have any further questions, please contact:

Assistant Professor, Nuutti Tervo, nuutti.tervo@oulu.fi

Professor, Aarno Pärssinen, aarno.parssinen@oulu.fi