Hello! I’m Gerard Janssen...

My name is Gerard Janssen and I’m an experienced and passionate systems administrator. With a strong background in IT and network management, I strive to make technology accessible to everyone. What drives me most is helping people by solving technical challenges—whether that’s optimising business processes or supporting individual users.

Want to learn more about me and view my full résumé?
Contact me on LinkedIn.

Skills

Strong proficiency

  • Windows OS
  • Switching
  • Wi‑Fi
  • Server/PC assembly & installation
  • Hypervisors
  • Microsoft 365
  • Storage
  • Gaming

Working knowledge

  • Linux
  • macOS
  • Docker
  • Intune
  • Azure
  • HTML/CSS

Languages

Dutch — Native

English — Strong proficiency in speaking, listening, writing and reading

Experience

02.2025 - present Ziekenhuis Rivierenland - Tiel
Role: IT — Internal Systems Administrator

Summary: Office infrastructure maintenance and operations

  • Migration to new hardware
  • Microsoft 365 migration
  • Hardening and securing the environment
11.2019 - 01.2025 C.I.V. Superunie B.A - Beesd
Role: IT — Internal Systems Administrator

Summary: Office infrastructure maintenance and operations

  • Led migration from on-premises to cloud
05.2018 - 10.2019 VelzArt — Waardenburg
Role: IT — Support for businesses and consumers

Summary: Maintenance and support for consumer and SME environments

  • O365 migrations for SMEs and sole proprietors
06.2016 - 04.2018 DO-IT Automatisering — Didam
Role: IT — Support for businesses and consumers

Summary: Maintenance and support for consumer and business environments

  • Hosted several ‘pizza knowledge’ sessions
01.2016 - 05.2016 Unidos Bewindvoering — Lent (Nijmegen)
Role: IT — Internal Systems Administrator

Summary: Office infrastructure maintenance and operations

  • Transitioned from workgroup to domain-based network
03.2014 - 09.2015 Derks Computers Telecom en Elektronica — Andelst
Role: IT — Support for businesses and consumers

Summary: Maintenance and support for consumer and business environments

  • Implemented a large, advanced Wi‑Fi network

Education

2011-2014 Rijnijssel Arnhem
IT — Systems Administration — Level 4 — Diploma obtained
2007-2011 Rijnijssel Arnhem
IT — Assistant Systems Administration — Level 3 — Diploma obtained
2003-2011 Hendrik Pierson College Zetten
VMBO — Vocational track (Metal) — Diploma obtained