Site Reliability Engineer

As a Senior Site Reliability Engineer - Quantum Computing (f/m/d), you will take end-to-end responsibility for the reliability, stability, and operability of our software that operates our quantum computers. You will act as a technical authority for system reliability, shaping how our quantum computers are operated, monitored, and evolved in production-like lab environments. This is an on-site position in Siegen or Hamburg, working closely with software engineers, firmware developers, physicists, and hardware engineers in an interdisciplinary environment.

• Own the reliability strategy for the quantum control and quantum program execution stack
• Define and continuously refine SLIs, SLOs, error budgets, and operational guardrails
• Design and evolve the observability architecture across software, infrastructure, and hardware-adjacent layers
• Lead incident response, post-mortems, and root cause analyses for critical system failures
• Proactively identify systemic risks and drive mitigation strategies
• Drive automation initiatives to reduce operational toil and improve system stability
• Establish and maintain operational standards, runbooks, and documentation
• Shape CI/CD and release processes with a strong focus on reliability and safe deployments
• Act as a trusted partner for development teams when designing production-ready systems
• Mentor engineers and raise reliability awareness across the organization

• Bachelor's or master's degree in Computer Science, Engineering, or a related field, or equivalent experience
• 5+ years of professional experience in SRE, DevOps, Platform Engineering, or Systems Engineering
• Proven track record of operating and stabilizing complex, mission-critical systems
• Strong experience with containerized and orchestrated environments
• Hands-on experience with monitoring, alerting, and observability systems
• Experience leading incident response and driving post-mortem
• Strong technical documentation and architectural reasoning skills
• Creative mindset and enjoyment working in a multicultural and interdisciplinary team
• Ability to make sound engineering trade-offs under uncertainty
• Fluent in written and spoken English

We value:

• Experience in hardware-adjacent, lab, or cyber-physical systems
• Background in scientific, research, or experimental environments
• Strong Python skills for automation and tooling
• Experience with long-running, stateful workloads
• Familiarity with firmware, control systems, or real-time constraints
• Experience with programmatic device control (e.g. SCPI, serial, USB, TCP/IP)
• Prior exposure to quantum computing or other deep-tech domains

• Competitive salary: We value our team members and therefore provide remunerations that reflect this, additionally rewarding achievements
• Flexible working hours: We offer personal freedom through a variety of flexible work schedules
• Team spirit: In our international and diverse team, and with our regular team events, having fun at work is simply part of the culture
• Further development: We want to grow together and so we offer our team members needs-based, individualized further training as well as plenty of room for personal development
• Wellness Package: We offer health-promoting benefits such as fitness programs like UrbanSportsClub to support your well-being