I’m Marius Gjerd, a developer in Bergen, Norway, working at the bridge between IT and OT.

MARIUS GJERD BERGEN 60.39°N
ROLE
System developer, Prelect (IoT for the energy sector)
BACKGROUND
Electrician first, developer since 2022
STUDYING
Industrial Automation, Fagskulen Vestland (3-year, from autumn 2026)
STACK
Python, Azure, Terraform, Docker, and things that talk to PLCs
WRITES ABOUT
Industrial data you can’t trust, OT security for developers

I started as an electrician. After getting my trade certificate I spent time on real industrial installations, the kind where a wiring mistake trips a breaker in a building, not just an error in a log. Then I moved into software, and for the past few years I’ve been building IoT solutions in the energy sector at Prelect, where the code I write talks to physical systems in the real world.

This autumn I start a three-year degree in Industrial Automation at Fagskulen Vestland alongside my day job. PLCs, instrumentation, industrial networking, OT security. The formal industrial side of what I’ve been doing in practice.

What I write about

The gap between IT and OT is real and costly. Most developers have never touched a PLC. Most automation engineers have never debugged a cloud pipeline. I’ve done both, and I write about what I’ve learned at that intersection:

  • What happens when the code you write has real-world consequences on real equipment
  • How to trace a sensor reading from physical installation to cloud application, and where it lies to you along the way
  • OT security from a developer’s perspective: what the threats actually look like, and what defences make sense
  • What IT people get wrong about industrial systems, and what OT engineers get wrong about software

The writing is honest, including the parts I get wrong. That is the format.

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