Our team


Our team

Grandmetric team members are subject-matter experts with hands-on experience in wireless and IP networks design, having served in various roles throughout the telecom value chain including:

  • working for major telecom infrastructure vendors in the R&D departments as RAN designers,
  • conducting and leading research in FP7 projects focusing on towards 5G RAN design,
  • designing and providing technical courses and consultancy services on LTE/LTE-Advanced and SON for major MNOs, infrastructure vendors, R&D institutions all around the world,
  • designing, re-designing, audits and troubleshooting of IP networks for large service providers, global vendors and integration services companies serving as network architects and solution managers,
  • holding numerous certifications including CCIE, CCNP, CCNA, CSSI, VCP, AWS, Microsoft Expert and more.



Marcin Bialy
Board Member | Advisory Architect
Marcin Dryjanski, Ph.D.
Principal Consultant | Wireless Systems Architect
Mateusz Buczkowski
Senior Research Engineer, Senior IEEE Member
Ivan Radev
Network Security Engineer | Instructor
Jacek Ozga
Network & Cloud Architect, CCIE
Karol Garnitz
Cloud & Infrastructure Architect
Malgorzata Bialy
HR & Office Manager
Krzysztof Osmałek
Infrastructure Engineer | Team Lead
Łukasz Sadowski
Customer Engineer | Team Lead
Mateusz Sobkowiak
Software Engineer
Jaroslaw Banakh
Junior Customer Engineer
Karol Piątek
Customer Engineer
Paulina Dryjańska
Project Manager
Marcin Bielak
Solution Architect | Development Team Lead
Jakub Fabis
Head of Sales
Kacper Małkowski
Front-End Developer
Wojciech Tokarski
Software Engineer
Piotr Pertek
Business Development Manager
Rafał Duda
Account Manager

Advisory board

Prof. Hanna Bogucka
Head of the Wireless Communication Department, PUT
Dr Adrian Kliks
Assistant Professor, PUT
Dr Youssouf Ould Cheikh Mouhamedou
Senior Wireless Access Expert
Saudi Arabia
Jeff Tantsura
Head of Technology Strategy, Nuage Networks from Nokia
Denis Zuev
Lead Engineer, Li9 Technology Solutions
Leszek Maciusowicz
Real Estate Investment Expert