Staff Site Reliability Engineer (m/f/d)

The role

You will transform central Cloud and IT services into reliable, observable, and automated products. You will take ownership of critical infrastructure including Vault/PKI, CI/CD systems, and monitoring platforms.

What you will do

• Build clear service ownership, SLOs, and incident response workflows for shared platform services.
• Develop a comprehensive observability practice with metrics, logs, alerts, and dashboards.
• Create resilient and automated patterns for deployment, monitoring, backup, and recovery.
• Implement pragmatic automations to eliminate recurring operational work.
• Manage highly available and secure shared services like Vault/PKI and CI/CD support systems.
• Write actionable runbooks and operational documentation.
• Partner with engineering teams to establish ownership boundaries and improve service handoffs.
• Collaborate with Backend Engineering to ensure new internal applications are operable.
• Participate in incident response, recovery drills, and blameless post-mortems.

Required qualifications

• Proven experience in a Site Reliability, DevOps, or Platform Engineering role responsible for production systems.
• Hands-on experience operating and improving shared services like CI/CD, secrets management, or monitoring platforms.
• Scripting skills (e.g., Python, Go, or shell).
• Strong understanding of observability principles and experience building monitoring for production services.
• Ability to write clear and concise documentation for runbooks and incident procedures.
• Proactive, collaborative approach to problem-solving.

Nice to have

• Deep-seated passion for reliability and automation demonstrated by personal projects, a homelab, or a history of automating workflows.

Benefits

• Competitive compensation package including a bonus opportunity
• 27 vacation days to start, increasing with tenure up to 30 days
• Employer-supported pension contribution
• Learning & development support and team events budget
• Employee discounts and flexible benefits budget via Probonio
• Hybrid working setup depending on role and team needs
• Structured salary bands, levelling framework, and bi-annual development conversations
• Referral bonus program
• Dog-friendly office
• Relocation support where applicable

About the company

ARX is a dual-use technology company that specializes in developing autonomous unmanned systems and sensors for the European defence sector. The company develops systems to assist NATO Armies and civilian first responders.