Hey! I'm Robin.
I'm a deeply technical software engineer and security expert, currently self-employed, previously worked as a red teamer & pentester at Deutsche Telekom AG.
- Automations and integrations
- Full-stack web applications
- Cloud solutions (with AWS)
- Security tools and infrastructure
- Penetration testing and red teaming
- Source code auditing
I strive for simplicity and quality.
Mostly writing Go, Elixir and JavaScript. 3x AWS certified and 2x Offensive Security certified.
open source
postgres job queue blueprint
private event logger and job monitor for tailnets
uncovers technologies used on websites
collaborative workspaces for recon data
fast samba fileshare indexing
fast, zero config web endpoint change monitor
task automation framework
subdomain enumeration by parsing FDNS dumps and CA transparency logs
blind XSS service alerting over slack or email
sideprojects
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Riskflow (launched 2025)
GRC platform
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CampingBroetchen (sold 2023)
Digital (breakfast) ordering for camping places (SaaS)
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Kursbuddy (closed 2021)
(Sport-) course and member management (SaaS)