GERMAN CASTELLANOS

RAN System Architect @ Accelleran

East Flanders, Belgium

I am an innovation-driven telecom engineer with over 20 years of international experience in mobile networks and system architecture. I specialize in 5G/6G RAN design, Open RAN, and AI-native frameworks. I have contributed to Horizon Europe R&D projects as a system architect and technical coordinator, driving demonstrator development, application integration, and energy-performance benchmarking. I bring together technical depth and strategic vision, with extensive publications in English and Spanish on telecom innovation.

Top roles

Consultant (Specialist)< 2 years

IT Professor> 10 years

PHD Researcher5 - 10 years

Project / Program Manager< 2 years

Back-end

AI .NET

Java - J2ME

Miscellaneous

Software testing

Network/Telecom

Telecom

Cloud

OpenStack

Language

Fluent English

English

Fluent

Spanish

Fluent

Dutch

Average

Work experience

Since 2009

RAN System Architect @ Accelleran

01 January 2023 - 01 October 2023

Architectural design of O-RAN systems for EU research projects focused on optimizing 5G private networks.

5G Networks Research Assistant @ Ghent University - Imec

01 January 2019 - 01 October 2023

Research on network planning tools for 5G, power consumption, and aerial networks supported by UAVs.

Assistant Professor @ Colombian School of Eng

01 January 2004 - 01 October 2023

Principal instruction in telecommunications and supervision of undergraduate thesis projects.

Supervisor Engineer @ Colombian ICT Ministry

01 January 2014 - 01 January 2015

Provided technical consultancy for the ICT project 'Colombia Vive Digital Regional'.

Research assistant @ Australian Research Council

01 January 2009 - 01 January 2011

Focused on enhancing M2M communication over wireless channels in smart electricity grids.

Education experience

Since 1999

Electrical Engineering @ Ghent University

01 September 2019 - 01 September 2023

PhD in Electrical Engineering.

Computer Science @ University of Newcastle

01 September 2009 - 01 September 2012

MPhil in Computer Science.

Electronics Engineering @ Colombian School of Eng

01 September 1999 - 01 September 2003

Bachelor of Electronics Engineering.