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Grzegorz Rzym

@grzegorzrzym

Network software engineer at AGH University of Kraków, developing SDN routing optimisation and 5G infrastructure.

At AGH University of Kraków, I research and develop software for software-defined networking, including Python-based traffic prediction and control components for SDN/OpenFlow environments. My work includes routing-policy validation and proactive network optimisation.

In the PL-5G and PL-5G 2 projects, I integrated 5G Core platforms with Kubernetes infrastructure and developed automation, monitoring and telemetry software. I also designed and teach an original university course on Software-Defined Networking.

Experience

Work history, roles, and key accomplishments

AK

Current

Research Associate / Assistant Professor

Current

AGH University of Kraków

Jan 2014 - Present (12 years 10 months)

Conducts research and software development in software-defined networking, network control, traffic engineering, and inter-domain traffic management. Develops and evaluates SDN/OpenFlow software, including traffic prediction and control components, and teaches a university course on SDN.

SDN OpenFlow Open vSwitch Floodlight Ryu PCE PCEP MPLS TE BGP LS Python Traffic Engineering Network Protocols Research Teaching

AK

5G Core / Cloud-Native Infrastructure Engineer

AGH University of Kraków

Jan 2021 - Jun 2026 (5 years 5 months)

Installed, configured, and integrated 5G Core platforms (Open5GS, free5GC, Fraunhofer) on virtual machines and Kubernetes. Developed Python and Bash automation, monitoring, and telemetry software for 5G Core infrastructure, and integrated solutions on physical and virtualized platforms.

5G Core Open5G Free5GC Kubernetes CNI Python BASH Automation Monitoring Telemetry UERANSIM Docker

MS

Junior Test Developer

Motorola Solutions Systems

Jan 2012 - Dec 2012 (11 months)

Implemented functional tests for the TETRA system.

Testing TETRA Functional Testing

Education

Degrees, certifications, and relevant coursework

NO

NobleProg

5G Mobile Communication Penetration Testing, 5G Security

2026 - 2026

5G Mobile Communication Penetration Testing training completed in May 2026.

NO

NobleProg

Kubernetes Security Fundamentals, Kubernetes Security

2026 - 2026

Kubernetes Security Fundamentals training completed in May 2026.

CI

Cisco

CCNA Instructor, Networking

2024 - 2024

Cisco CCNA Instructor certification obtained in 2024.

AK

AGH University of Kraków

PhD, Computer Science and Telecommunications

PhD in Computer Science and Telecommunications, with a dissertation on Traffic Management in Software-Defined Networks.

PR

PRINCE2

PRINCE2 Foundation, Project Management

2019 - 2019

PRINCE2 Foundation certification obtained in 2019.

CI

Cisco

Model Driven Programmability Instructor, Networking

2019 - 2019

Cisco Model Driven Programmability Instructor certification obtained in 2019.

PN

Palo Alto Networks

Cybersecurity Academy Instructor, Cybersecurity

2018 - 2018

Palo Alto Networks Cybersecurity Academy Instructor certification obtained in 2018.

AK

AGH University of Kraków

MSc, Electronics and Telecommunications

2010 - 2012

MSc in Electronics and Telecommunications from AGH University of Kraków.

AK

AGH University of Kraków

BEng, Acoustic Engineering

2010 - 2012

BEng in Acoustic Engineering from AGH University of Kraków.

AK

AGH University of Kraków

BEng, Electronics and Telecommunications

2007 - 2010

BEng in Electronics and Telecommunications from AGH University of Kraków.

Tech stack

Software and tools used professionally

Kubernetes

Terraform

Python

Java

MATLAB

Linux

Git

Docker

Open vSwitch

Bash

Availability

Looking for a job

Location

Poland

Authorized to work in

Salary expectations

200k+ PLN

Job categories

Network Software Engineer 5G Core Network Engineer Cloud Infrastructure Engineer

Skills

Software Defined Networking (SDN)Network Software Development Open vSwitch OVC OpenFlow Network Protocols Traffic Engineering Network Controls Routing Optimization TCP IP MPLS TE BGP OSPF BGP LS PCE PCEP

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