Jarl Gullberg
Founder at Visar Systems AB
Älvsbyns kommun, Norrbotten County, Sweden
Summary
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Rockstar🎓
Top SchoolJarl Gullberg is a founder and seasoned software engineer with 12 years’ experience building secure, mission-critical systems for defense and infrastructure. He leads Visar Systems AB and develops DeeDee, a Debian-derived OS hardened for compliance with international standards like ISO 27002, NIST-800-53 and Common Criteria, aimed at regulated sectors such as defense and industrial control. His background blends hands-on product and operations experience at Sweden’s Vidsel Test Range with hyperscale data center operations at Meta, giving him practical insight into both austere field deployments and large-scale production environments. A long-time open-source maintainer and contributor (including work on OpenTK and a game launcher project), he actively advocates for open-source security solutions in regulated contexts. Known for tackling unconventional technical and organizational challenges, he also nerds out on legacy hardware and ships pragmatic tooling that accelerates compliance on day one.
12 years of coding experience
6 years of employment as a software developer
Bachelor's degree, Spaceflight Engineering, Bachelor's degree, Spaceflight Engineering at Luleå tekniska universitetHigh School Diploma, Natural Sciences, Passing grade in all subjects, High School Diploma, Natural Sciences, Passing grade in all subjects at Nyköpings Enskilda Gymnasium
Swedish, English
Stackoverflow
89reputation
155kreached
1answer
0questions
Github Skills (11)
csharp10
launcher10
dotnet-core10
game-development9
uid8
front-end-development8
ui-design8
unreal-engine-47
unreal7
unreal-engine-57
floating-point6
Programming languages (23)
Github contributions (5)
Nihlus/Launchpad
Aug 2014 - Aug 2021
An open-source game launcher for your games
Role in this project:
Back-end & UI Developer
Back-end & UI DeveloperContributions:623 commits, 11 PRs, 429 pushes in 7 years
Contributions summary:Jarl made several commits that add functionality to the game launcher application. Specifically, they implemented an "About" message, fixed the launcher's auto-update feature, added an update check, and corrected hardcoded launcher update URLs. Their changes include modifications to the UI and the addition of a local version check.
gamegameswindowslinuxlauncher
Nihlus/StrictEmit
Feb 2018 - Jun 2019
Sick of picking the wrong CIL Emit overload? Look no further.
Contributions:38 commits, 4 PRs, 36 pushes in 1 year 3 months
lookperl5overloadacksick
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