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 stackDefine and continuously refine SLIs, SLOs, error budgets, and operational guardrailsDesign and evolve the observability architecture across software, infrastructure, and hardware-adjacent layers  Lead incident response, post-mortems, and root cause analyses for critical system failuresProactively identify systemic risks and drive mitigation strategiesDrive automation initiatives to reduce operational toil and improve system stabilityEstablish and maintain operational standards, runbooks, and documentationShape CI/CD and release processes with a strong focus on reliability and safe deploymentsAct as a trusted partner for development teams when designing production-ready systemsMentor engineers and raise reliability awareness across the organizationRequired Skills:Bachelor's or master's degree in Computer Science, Engineering, or a related field, or equivalent experience5+ years of professional experience in SRE, DevOps, Platform Engineering, or Systems EngineeringProven track record of operating and stabilizing complex, mission-critical systemsStrong experience with containerized and orchestrated environmentsHands-on experience with monitoring, alerting, and observability systems Experience leading incident response and driving post-mortemStrong technical documentation and architectural reasoning skillsCreative mindset and enjoyment working in a multicultural and interdisciplinary team  Ability to make sound engineering trade-offs under uncertainty Fluent in written and spoken EnglishWe value:Experience in hardware-adjacent, lab, or cyber-physical systemsBackground in scientific, research, or experimental environments Strong Python skills for automation and toolingExperience with long-running, stateful workloadsFamiliarity with firmware, control systems, or real-time constraintsExperience with programmatic device control (e.g. SCPI, serial, USB, TCP/IP)Prior exposure to quantum computing or other deep-tech domainsWhat you can expect from eleQtron:Competitive salary: We value our team members and therefore provide remunerations that reflect this, additionally rewarding achievementsFlexible working hours: We offer personal freedom through a variety of flexible work schedulesTeam spirit: In our international and diverse team, and with our regular team events, having fun at work is simply part of the cultureFurther 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 developmentWellness Package: We offer health-promoting benefits such as fitness programs like UrbanSportsClub to support your well-beingBike Leasing: Stay Mobile and Sustainable with Our Company Bike Leasing ProgramMoving Benefits: A warm welcome! We are happy to support employees who move for us with a bonusAt the forefront: Work at the forefront of technology, where academic research meets commercial applications Modern workplace: We have a high-quality infrastructure with laboratory space, offices and meeting roomsFind Jobs in Germany