Network Engineer · Cybersecurity · History

Technology, analysis and identity.

I am Tomasz Kosiński — Technical Consulting Engineer at Cisco with a PhD in humanities. I combine engineering with historical and cultural analysis.

Profile

TAC Engineer interested in networks and cybersecurity. Author, historian and lifelong learner combining technical precision with humanities perspective.

10+ years of professional experience
2 core tracks: technology & humanities
3 languages: Polish, English, German
10+ certificates across cloud, security and networking
Current focus

Building a professional path at the intersection of network engineering, cloud, cybersecurity and AI — while continuing research and writing on identity, history and football culture.

About

A concise introduction for people who want to quickly understand what I do, what I value and what drives me.

Professional overview

My work sits at the intersection of engineering and humanities — combining analytical thinking with broader cultural understanding. My professional background is rooted in network engineering, troubleshooting and security-oriented problem solving across enterprise environments.

Alongside my technical career, I completed a PhD in humanities focused on history and identity. This combination shapes the way I approach complex problems: analytically, precisely and with a wider perspective.

Experience

Since February 2023 · Cisco

Technical Consulting Engineer — Secure Network Analytics

  • Supported enterprise clients in troubleshooting complex network issues (Cisco, multi-vendor environments)
  • Analyzed and resolved incidents related to Secure Network Analytics (Stealthwatch) and Secure Cloud Analytics
  • Improved incident resolution efficiency by prioritizing critical network failures
  • Worked with cloud-integrated environments and security monitoring tools (AWS, Azure)
March 2019 — January 2023 · Marnay / Telefónica Germany project

Fixnet Implementation and Operation Engineer

  • Implementation and configuration of multi-vendor IP, transmission and voice network equipment
  • Troubleshooting and incident handling across network layers
  • Coordination with suppliers and internal departments
  • Remote support for field services
October 2014 — February 2019 · Tedgum

Catalogue Editor & Customer Service

  • Editorial work and catalogue management
  • Customer communication in German and English

Expertise

Technologies, domains and certifications that shape my current direction.

Core areas
Networking Cybersecurity Cisco Juniper Wireshark Cloud AWS Azure Oracle Cloud AI fundamentals Unix / Linux / macOS HTML / CSS basics
Selected certifications
  • JNCIA-Junos
  • Fortinet Certified Associate Cybersecurity
  • Microsoft AZ-900 / SC-900 / AI-900
  • AWS Certified Cloud Practitioner
  • Oracle Cloud Foundations & AI Foundations
  • Cisco CCNA core certification

Passions

Beyond work, my interests connect identity, discipline and culture.

Writing & research

My academic and public work focuses on history, identity and football culture. I am particularly interested in how sport reflects memory, community and regional belonging.

Football, for me, is not only sport. It is a lens through which larger cultural and historical processes become visible.

Personal interests
Football culture Regional identity History Martial arts BJJ brown belt Combat sports Technology AI Metal music

Publications & Media

Academic work, public writing, podcast appearances and lectures.

Podcast · The Football Heritage Podcast

Football in Upper Silesia

Guest appearance discussing the history, identity and cultural significance of football in Upper Silesia.

Lecture · Public talk

Zabić de Gaulle’a – historia Lajosa Martona

Czy przeciętny człowiek z małej wioski może wpłynąć na losy świata? Historia Lajosa Martona — człowieka, który rzucił wyzwanie Imperium Sowieckiemu, brał udział w zamachu na prezydenta Francji i podjął tajną misję w Czadzie.