Sebastian Haderecker
Expert Engineer Public Cloud at T-Systems International
Munich, Bavaria, Germany
Summary
🤩
Rockstar🎓
Top SchoolSebastian Haderecker is an Expert Engineer in Public Cloud based in Munich with 10 years of hands-on experience building secure, automated cloud infrastructure. At T‑Systems he designs and automates public cloud deployments, blending expertise in cloud security, Ansible/Terraform automation, containers and Kubernetes with a strong Linux/OpenStack background. His open-source work includes automating a T-Pot honeypot platform for the Open Telekom Cloud and contributing German localization to OptiFine, showing both security-focused engineering and attention to user experience. Colleagues know him as a pragmatic engineer who emphasizes secure, reproducible automation and tool-driven ops rather than ad-hoc fixes.
10 years of coding experience
3 years of employment as a software developer
Apprenticeship, Apprenticeship at Städtische Berufsschule für Informationstechnik MünchenAbitur, Abitur at Carl-Orff-Gymnasium
French, English, German
Stackoverflow
71reputation
55kreached
1answer
0questions
Github Skills (27)
docker10
translation10
bash10
user-interface10
dockers10
security10
automation10
localization10
honeypot10
ansible10
network-security10
ansible-galaxy10
automations10
devops10
cloud-computing9
Programming languages (15)
Github contributions (5)
telekom-security/tpotce
Feb 2019 - Sep 2021
🍯 T-Pot - The All In One Multi Honeypot Platform 🐝
Role in this project:
DevOps Engineer & Security Engineer
DevOps Engineer & Security EngineerContributions:2 reviews, 208 commits, 35 PRs in 2 years 6 months
Contributions summary:Sebastian's commits primarily focus on automating the deployment and configuration of a T-Pot honeypot platform within the Open Telekom Cloud (OTC). They developed scripts for creating ECS instances via the OTC API, deploying T-Pot using Ansible playbooks, and handling potential errors during the build process. Furthermore, the user integrated HPFEEDS and implemented security best practices by checking for essential packages and ensuring agent forwarding for Ansible's operation, indicating a strong emphasis on secure infrastructure and automation.
data-exchangeelkall-in-onesecuritydocker
sp614x/optifine
May 2016 - Mar 2021
Role in this project:Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:3 reviews, 56 commits, 38 PRs in 4 years 10 months
Contributions summary:Sebastian primarily contributed to the German localization of the OptiFine project, focusing on translating user interface elements and tooltips within the game. They addressed missing translations, corrected spelling mistakes, updated existing translations, and added new strings related to various features. The contributions demonstrate a focus on ensuring the software is accessible and user-friendly for German-speaking users.
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