We spent hundreds of days working with world-class acoustic researches and audio engineers to create Hefio headphones

Founder and CEO

Mr. Marko Hiipakka D.Sc., Hefio’s Founder and CEO. Marko has formerly worked with spatial sound and hearing technology at Aalto University and at Oldenburg University, Germany. He holds a Ph.D. in Acoustics and Audio Signal Processing. In his thesis, Estimating pressure at the eardrum for binaural reproduction, from 2012, he developed new methods of calibrating circumaural and insert headphones for spatial sound reproduction. In addition, he has experience in marketing and sales, business relations, product management, and project management. He is an expert in Audio signal processing, Industrial 3D-design, Acoustical modeling, Hearing aid technology, IPR-­law, Industrial economics, as well as Electronics manufacturing and assembly.


Mr. Juha Backman, Chief Technology Officer, is a world-leading expert and top scientist in audio signal processing, particularly in the field of loudspeakers and headphones. His publications include ten granted patents in mobile phone technology, two Journal of the Audio Engineering Society papers, and over 50 conference publications. Most of these publications are related to loudspeakers, motivated by a desire to understand more deeply the underlying principles of these devices with apparently unlimited hidden complexity. He graduated with an M.Sc. in Applied Physics and Acoustics from Helsinki University of Technology, 1991. From 1994 onwards, he has taught acoustics, nowadays giving a biannual course in electroacoustics. He joined Nokia Corporation at the end of 1994, and moved to Microsoft with the corporate merger in 2014. In 2015, he joined PuroNovo engineering company to develop active noise and vibration control for Kone Corporation’s elevators, and Genelec as a researcher in loudspeaker signal processing. He has served as the Vice Chairman for the Audio Engineering Society’s (AES) Technical Committee on Loudspeakers and Headphones. He was awarded an AES Fellowship in 2012.

Head of Software Development

Mr. Jari Kleimola D.Sc., Head of Software Development, has extensive experience in the software industry specializing in user interaction and real­time audio. Later he returned to academia and attained a Ph. D. from Aalto University’s Dept. of Acoustics and Audio Signal Processing on nonlinear abstract sound synthesis algorithms. His postdoc position focused on the latest web technologies and recent innovations in mobile streaming applications. During a recent research visit to the University of Padova he explored personalization support for binaural headphone reproduction in web browsers. He is expert upon a supervisor level in Audio signal processing, Realtime sound synthesis and processing algorithms, as well as in 3D audio, Software development (OSX, Windows, Android, iOS, Windows Phone), Web technologies, Distributed software architectures, Home multimedia, and Human­-computer interaction.

Board Member

Mrs. Catarina Hiipakka Ph.D. is a Marie Curie Fellow at the Department of Signal Processing and Acoustics, in Aalto University. She holds a Ph. D. in Psychoacoustics, specializing in hearing, multisensory perception, and auditory adaptation processes. In recent years, she has worked in various research projects, including topics such as the adaptation to headphone-delivered sounds, perception of sound discomfort, sound detection, and more recently sound perception by hearing­-impaired populations.

Senior Software Engineer

Mika Sundvall holds M.Sc. (Master of Science) degree in Acoustics and Audio Signal Processing with a minor in Music Technology. During his professional career he has performed tasks including speech codec integration. Other software development experience has centered on base station platforms. This experience with base stations concerned the environment implementation for continuous delivery processes. Experience extends to agile team-leading activities, embedded software virtualization, and root cause analysis of defective frequency-variable drives. Specializations include audio and signal processing, software development, electrical engineering, music technology, agile software processes, and software team leadership.

Software Engineer

Kai Kuosmanen holds B.A. (Bachelor of Arts) degree in English Philology with a minor in Computer Sciences. He has an expertise in audio and digital signal processing, electronics design, embedded systems, software development and agile software processes.

Marketing Manager

Olga Yurbacheva holds M.Sc. (Master of Science) degree in Economics and Business Administration and CEMS Master in International Management degree. She has an expertise across several business areas including marketing, communications, key account management, international B2B sales, Russian and Eastern European consumer electronics market, international logistics and international HR.