Heimdall Security Team

Watch the perimeter.
Secure the landscape.

The independent practice of Jan Gebser - present from regional datacenters to aerospace and defence agencies, including special-task work that hardens Europe’s digital terrain.

About the practice Request a conversation

Worldwide presence · Hamburg origin · Mission-grade discretion

Practice areas

Where the work lives

Heimdall is built for operators who already run serious infrastructure - and for institutions that cannot treat security as a product category.

Quiet aisle of a modern regional datacenter

Regional datacenters

Hardening, segmentation, and operational security for regional hosting and colocation landscapes - the layer most organisations actually depend on.

Aerospace hangar at dawn

Aerospace

Programme-level security work around aerospace systems, supply chains, and the digital surfaces that now sit beside flight hardware.

Dim secure operations floor at night

Defence agencies

Discreet support for defence-adjacent environments: threat modelling, landscape hardening, and special-task assignments under tight confidence.

Night aerial of a northern European harbor city

European digital landscapes

Potential special-task work to enhance and secure the digital landscapes of Europe - sovereignty, resilience, and continuity without theatre.

Operational services

Support, collection, software, and access.

Published fees. Written confirmation. Hamburg and Northern Germany for on-site work.

Quiet executive desk overlooking a northern harbor at dusk

Remote support

Incident triage, recovery guidance, and hardening advice by appointment. First hour from €190 net.

Open remote support
Orderly retired equipment on pallets in a quiet warehouse

Equipment collection

Scheduled collection of obsolete SME equipment. Hamburg visit €295 net, including transport and handling.

Request a collection
Quiet studio table with sketches and a muted screen at harbor dusk

Development

Custom software and work on existing NETCORE platforms. Scoping from €280 net.

Open development
Closed notebook on a quiet office desk

Access recovery

Restore legitimate administrator access on Windows and Linux. Then monitor and protect.

Request recovery

Security Briefing

Latest designation

HST-BRF-2026-001

The name, and the work

A first designated reading. Welcome. What Heimdall stands for, and what this practice does - without the machinery behind the gate.

All briefings

Founder

Jan Gebser

IT consultant and founder, operating from Hamburg with a worldwide brief. Managing Director of NETCORE MEDIA. Present wherever the perimeter actually is - not only where the brochure puts it.

The latest public competition was the World’s Largest Hackathon on Devpost. The next gathering is ContainerDays Hamburg 2026, 2–4 September.

Read the full brief
Hamburg harbor warehouses at dusk
Hamburg Nord · NETCORE MEDIA

Field notes

Public stage, private work

Latest competition

World’s Largest Hackathon

Devpost, presented by Bolt. 30 May – 30 June 2025. More than 128,000 participants. A public proving ground - not a substitute for classified work, but a measure of pace.

worldslargesthackathon.devpost.com

Coming soon

ContainerDays Hamburg 2026

2–4 September 2026 at Schuppen 52. Europe’s cloud-native conference - Kubernetes, platform engineering, and a dedicated security track. Save the date.

containerdays.io

Conversation

If the landscape matters, write directly.

Open a secure channel