Senior Site Reliability Engineer – Quantum Computing (f/m/d)

eleQtron develops and operates full-stack quantum computers based on trapped-ion technology. Quantum computing is a new computing paradigm rapidly approaching commercial viability. Our unique approach combines laser-cooled trapped ions with microwave control and tailored magnetic fields. Our next-generation computing machines under development will be able to find solutions to problems that are out of reach today, thus enabling new innovative products and services for a brighter future.

We are looking for a Senior Site Reliability Engineer to drive the reliability, scalability, and operability of the software systems powering our trapped-ion quantum computers.

Responsibilities

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