~/cv
Resume
Senior security analyst in ERNW's cloud security team. Cloud and Kubernetes security, scenario-based red teaming, trainings.
Sebastian Funke, Heidelberg. Senior security analyst in ERNW’s cloud security team. I spend most of my time on cloud and Kubernetes security: reviewing cloud accounts and container platforms, running scenario-based red-team assessments, and working with large companies, several of them in the DAX 10. I rely heavily on AI agents to automate parts of my assessments. I studied computer science and IT security at TU Darmstadt and published research on IoT security and privacy along the way.
Cloud & container platforms
Public cloud
- AWS
- Azure
- Google Cloud
- Alibaba Cloud
- IBM Cloud
- … and more
Private & sovereign cloud
- OpenStack
- SAP Converged Cloud
- Cloud Foundry
- … and more
Kubernetes
- EKS
- AKS
- GKE
- OpenShift
- Rancher
- Gardener
- Kubermatic KKP
- SAP Kubernikus
- … and more
Experience
-
2019–today
Senior Security Analyst, Cloud Security Team
ERNW Enno Rey Netzwerke GmbH · Heidelberg
Security assessments and penetration tests of large enterprise environments, these days mostly cloud and Kubernetes. I'm part of ERNW's cloud security team and have reviewed a lot of cloud accounts and container platforms, for several DAX 10 companies among others. I've led scenario-based red-team assessments of cloud and container platforms and co-teach Offensive Kubernetes Security 101.
- Senior Security Analyst since November 2026, before that security analyst and penetration tester.
- Pentests of networks, desktop and web applications, containers and multi-cloud setups.
- Led scenario-based red-team assessments of cloud and container platforms.
- Research on automating assessments in Azure and Kubernetes and on improving our pentest techniques.
- Heavy user of AI agents, mostly to build automations for my assessments.
- Trainer at TROOPERS and HM Training Solutions (Offensive Kubernetes Security 101).
Joined after a half-year career break, backpacking through South East Asia.
-
2017–2019
Junior Security Consultant (Penetration Tester)
Context Information Security · Bad Nauheim
21 months delivering security assurance services for some of the world's most successful organisations, as team member and occasionally as team lead: web applications and web services, external and internal networks, .NET and Java thick clients, CIS-aligned build and configuration reviews (Windows, *nix, Cisco IOS) and tightly scoped, legally compliant scenario-based attack simulations.
-
2015–2017
Student Research Assistant, R&D
AGT International · Darmstadt
Two years of research on privacy-enhancing technologies for Internet of Things applications; wrote my master's thesis here (an end-to-end privacy architecture for IoT).
-
2015–2015
Student Research Assistant, Secure Software Development
Fraunhofer SIT · Darmstadt
Three months improving a dashboard that visualises security issues of software projects.
-
2013–2014
Web Developer
Kleewald GmbH · Frankfurt am Main
Eleven months at a start-up building web applications for the finance and legal domains (PHP, HTML5, CSS3, jQuery, MySQL).
-
2013–2013
Software Engineering Intern
TÜV Rheinland Taiwan · Taipei
A 4.5-month internship between bachelor's and master's: automated RF test procedures with Agilent VEE and built a small Android marketing app.
-
2010–2013
IT Consultant
Univativ GmbH · Darmstadt
Alongside my studies: several small projects as IT consultant and web developer, e.g. for Merck KGaA.
-
2009–2010
IT Administrator
Studierendenwerk Mainz · Mainz
Four months between civil service and university: network expansion, hardware and software roll-outs, POS system maintenance.
Education
-
2013–2017
M.Sc. IT Security
TU Darmstadt
Master's programme in IT security. Thesis: an end-to-end privacy architecture for the Internet of Things (with AGT International).
-
2010–2013
B.Sc. Computer Science
TU Darmstadt
Graduated after six semesters. Thesis: a user study on visualising privacy-critical messages in online social networks.
-
2005–2008 Technical Assistant for Computer Science, Abitur Berufliches Gymnasium Mühlhausen
Higher-education entrance qualification with majors in data processing and mathematics, plus the state-certified technical assistant qualification.
Skills
Offensive security
- Cloud & Kubernetes pentesting
- Container escape & isolation
- Scenario-based red teaming
- Web & API security
- Network & infrastructure
- Thick clients (.NET
- Java)
- Build & configuration reviews
Engineering
- AI agents & agentic automation
- Python
- Bash
- JavaScript
- Linux
- Git
- kubectl & cloud CLIs
Research interests
- Privacy-enhancing technologies
- Multi-tenancy
- Secure software development
- Wireless physical-layer security
- Decentralisation
Languages
- German · native
- English · fluent
- French · basic
- Chinese (Mandarin) · basic
Earlier skills
Languages & stacks
- PHP
- Java
- Delphi/Pascal
- C/C++/C#
- MySQL
- jQuery
- HTML & CSS
- Visual Basic
- Prolog
- Verilog/VHDL
- IA-32 assembler
Tools
- Joomla
- WordPress
- Contao
- SVN
- LaTeX
- GIMP
- SAP R/3
Methods
- Scrum
- RUP
- XP
- Design & architecture patterns
Publications · Teaching
A detailed CV in PDF is available on request.