Doctoral Researcher/Postdoctoral Researcher, AI/ML-assisted RF transceiver linearization, contr[...]

University of Oulu; Oulu; On-site; EUR 31,248 - 46,872; Full time

Benefits offered by this job

Wellness benefit ePassi

Development and career options

Support for settling into Oulu

Job summary

The University of Oulu is offering two research positions in AI/ML-assisted RF transceiver development within their esteemed Centre for Wireless Communications. Candidates will engage in innovative research that involves developing algorithms for digital predistortion, system optimisation, and conducting extensive experiments.

The roles require relevant academic qualifications and provide a stimulating research environment complemented by access to a world-class RF laboratory, along with a comprehensive benefit package and a commitment to work-life balance.

Qualifications

• Master's degree completed before starting the doctoral work.
• PhD degree completed before application deadline for postdoctoral research.
• Experience in combining theoretical ideas with practical measurements.

Responsibilities

• Develop new AI/ML-assisted models for RF transceivers.
• Conduct both conducted and over-the-air measurements.
• Collaborate with the research team for integrated methods.

Skills

AI/ML methods

Digital Predistortion

Power Amplifier modeling

Fluency in English

Education

Master’s degree in Electrical Engineering, Communications Engineering, Computer Science, Mathematics, or related discipline

Doctoral degree in related field

Tools

RF measurement equipment

FPGA platforms

Job description

The University of Oulu is a multidisciplinary, international research university, with about 4000 employees who produce new knowledge based on high‑standards research and provide research based education to build a more sustainable, smarter, and more humane world. The University of Oulu community has about 19,000 people in total. Our northern scientific community operates globally and creates conditions for the emergence of innovations. The University of Oulu is ranked in the top 3% of the world’s universities.

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, optimisation, and RF impairment mitigation.

Topical area 1

The first position topic is AI/ML‑assisted digital predistortion (DPD) and transmitter array optimisation. The work involves behavioural modelling 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 linearisation 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 position focuses on AI/ML‑assisted RF system design, modelling, control, and optimisation. The work involves AI‑based modelling and control of the transceiver chain, including power consumption optimisation, 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.

• Develop new AI/ML‑assisted models, algorithms, and concepts for the RF systems to aid design, control, and optimisation of RF transceivers and their controls.
• Perform complex conducted and over‑the‑air measurements and analyse the measurement data to model complex hybrid beamforming transceiver systems and optimise 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 co‑worker on the project team, bringing wide expertise across different areas of transmitter linearisation and optimisation.

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 skill sets alongside deep academic knowledge.
• Wellness benefit ePassi covering sport, culture, and well‑being. Read more about other staff benefits.
• Development and career options of a large organisation.
• Work that matters and a workplace that promotes flexibility and work‑life balance. Read more about working with us.
• OurBuddy 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. The 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 and obtained within the past 10 years.
• Ability for independent scientific 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 modelling, 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 millimetre‑wave measurements with modulated signals and measurement automation.
• Previous experience in AI/ML tools and models, behavioural modelling, 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 standardised waveforms.
• Good mathematical skills and the capability of applying them to various problems.

Salary

Doctoral Researcher position: 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.

Postdoctoral researcher position: 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 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, [e-mail]

Professor, Aarno Pärssinen, [e-mail]