Site Reliability Engineer - - Defense Products (f/m/d)

🔒 Build and Optimize the Future of Cyber Defense

Cyber threats never stop evolving—neither do we. We’re looking for a Site Reliability Engineer (SRE) who thrives on building resilient systems, optimising security operations, and automating at scale. If you love digging deep into network security, fine-tuning mitigation strategies, and developing high-performance security solutions, we’d love to meet you!

In this role, you’ll collaborate closely with System Administrators and Network Engineers to develop and maintain our defense platforms, ensuring the security of our hosting products and infrastructure. From DDoS mitigation to Web Application Firewalls (WAF), Zero Trust frameworks, and CDN optimisations, you’ll help shape the backbone of our cybersecurity strategy.

⚡ What You’ll Be Doing

• Design and refine security mechanisms to counter DDoS attacks across multiple layers.
• Develop and optimize automation pipelines for real-time threat detection and mitigation.
• Enhance system reliability by streamlining operational workflows and automating repetitive tasks.
• Build and maintain integration interfaces, ensuring seamless adoption of security solutions across our products.
• Monitor, troubleshoot, and improve our distributed security infrastructure, participating in on-call rotations.
• Bring fresh ideas to DevOps, lifecycle management, and system resilience strategies.

🎯 What You Bring:

• A degree in Computer Science or equivalent practical experience.Ç
• A problem-solving mindset, with a strong focus on system reliability and security.
• Hands-on experience developing and maintaining highly available infrastructure using:- Go, C, Python, PHP, or Bash.- Lua scripting for Nginx (big plus!).Experience configuring and operating Nginx as a reverse proxy or WAF.
• An automation-first approach—you prefer writing scripts over manual fixes.
• Familiarity with BGP, flowspec, anycast routing, and networking protocols on Linux.
• The ability to analyse attack patterns, develop countermeasures, and continuously improve security frameworks.
• A strong commitment to open-source technologies, particularly Linux.
• Fluency in English (German is a plus).

🌍 Why Join Us?

• A global, multicultural team working on cutting-edge security challenges.
• The freedom to innovate, experiment, and stay ahead of cyber threats.
• A collaborative culture where your ideas drive real impact.
• A fast-paced, ever-evolving environment where learning never stops.