Cloud Engineer - Quantum Computing (m/w/d)

<p style=";"><strong><span style="color: #121317">eleQtron</span></strong><span style="color: #121317"> 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.<br /></span></p><p><strong><span style="color: #121317">We are looking for a Cloud Engineer (m/f/d) to join us in Hamburg or Siegen and build and operate the scalable, secure cloud platform that connects users with our trapped-ion quantum computers.<br /></span></strong></p><p style=";"><strong><span style="color: #121317"> Responsibilities:</span></strong></p><p><span style="color: #000000">You will join our Quantum firmware Team as a Cloud Engineer. You will build the layer through which the world reaches our quantum computers. Users submit quantum programs; your services compile, schedule, and dispatch them to our machines and return the results:  <br /></span></p><ul><li><p><span style="color: #121317">Build and operate the cloud services that let users submit quantum programs to our systems and retrieve their results.</span></p></li></ul><ul><li><p><span style="color: #121317">Develop and deploy our compilation pipeline as a scalable cloud service , from circuit input through transpilation down to hardware-level instructions</span></p></li></ul><ul><li><p><span style="color: #121317">Design and maintain the public API and SDK entry points to our platform </span></p></li></ul><ul><li><p><span style="color: #121317">Implement job queuing, scheduling, and dispatch towards the hardware backends, including quota, prioritisation, and result handling </span></p></li></ul><ul><li><p><span style="color: #121317">Own authentication and authorisation across the platform: user and tenant identity, API keys and tokens, and role-based access to machines, jobs, and results, built on an established identity provider rather than from scratch</span></p></li></ul><ul><li><p><span style="color: #121317">Guarantee tenant isolation, so that quantum programs and results are never visible across customer boundaries, and manage secrets and credentials across the stack</span></p></li></ul><ul><li><p><span style="color: #121317">Work with the quantum firmware and hardware teams on the interfaces between cloud services and the machine itself</span></p></li></ul><ul><li><p><span style="color: #121317">Instrument the platform for observability and keep an eye on latency, throughput, and cost</span></p></li></ul><br /><br /><p><strong><span style="color: #121317">Required Skills:</span></strong></p><ul><li><p><span style="color: #121317">3+ years of hands-on experience building and deploying backend or platform services in production</span></p></li><li><p><span style="color: #121317">Strong Python; additional systems-level language experience (Go, Rust, C++) is welcome</span></p></li><li><p><span style="color: #121317">Solid API design skills (REST and/or gRPC) for services other developers have to use</span></p></li><li><p><span style="color: #121317">Practical experience implementing authentication and authorisation in production systems: OAuth 2.0 / OpenID Connect, token handling, and role-based access control</span></p></li><li><p><span style="color: #121317">Secure engineering habits: least privilege by default, proper secrets management, and awareness of dependency and container supply-chain risks</span></p></li><li><p><span style="color: #121317">Infrastructure as code (Terraform, Pulumi, or similar) and CI/CD pipelines (GitLab CI, GitHub Actions, or similar)</span></p></li><li><p><span style="color: #121317">Working understanding of GDPR and data residency requirements, and a genuine interest in digital sovereignty</span></p></li><li><p><span style="color: #121317">Ability to collaborate effectively with experimental physicists and engineers</span></p></li><li><p><span style="color: #121317">Strong adaptability and a quick learning mindset</span></p></li><li><p><span style="color: #121317">Good proficiency in English (written and spoken); German is an advantage for working with public-sector partners</span></p></li></ul><p style=";"><strong><span style="color: #121317">Nice to have (Bonus)</span></strong></p><ul><li><p><span style="color: #121317">Running an identity provider in production (Keycloak, Zitadel, Ory, Authentik, or a managed IAM service)</span></p></li><li><p><span style="color: #121317">Multi-tenant isolation patterns in SaaS platforms</span></p></li><li><p><span style="color: #121317">Contributing to security certification work (ISO 27001, BSI IT-Grundschutz, BSI C5) or acting on penetration test findings</span></p></li><li><p><span style="color: #121317">Familiarity with quantum SDKs and toolchains (Qiskit, Cirq, PennyLane, QIR) or hardware abstraction interfaces such as QDMI</span></p></li><li><p><span style="color: #121317">Batch scheduling or HPC environments (Slurm or similar)</span></p></li><li><p><span style="color: #121317">Observability stacks such as Prometheus, Grafana, or OpenTelemetry</span></p></li><li><p><span style="color: #121317">Prior exposure to quantum computing or other deep-tech domains<br /><br /></span></p></li></ul><p style=";"><strong><span style="color: #121317"><br />What you can expect from eleQtron:</span></strong></p><ul><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Competitive salary:</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317"> We value our team members and therefore provide remunerations that reflect this, additionally rewarding achievements</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Flexible working hours</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317">: We offer personal freedom through a variety of flexible work schedules</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Team spirit:</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317"> In our international and diverse team, and with our regular team events, having fun at work is simply part of the culture</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Further development:</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317"> 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</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Wellness Package</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317">: We offer health-promoting benefits such as fitness programs like UrbanSportsClub to support your well-being</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Bike Leasing:</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317"> Stay Mobile and Sustainable with Our Company Bike Leasing Program</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Moving Benefits:</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317"> A warm welcome! We are happy to support employees who move for us with a bonus</span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">At the forefront</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317">: Work at the forefront of technology, where academic research meets commercial applications </span></span></p></li><li><p style=";"><strong><span style="font-size: 1.1em"><span style="color: #121317">Modern workplace:</span></span></strong><span style="font-size: 1.1em"><span style="color: #121317"> We have a high-quality infrastructure with laboratory space, offices and meeting rooms</span></span></p></li></ul><p>Find <a href="https://www.arbeitnow.com">Jobs in Germany</a> on Arbeitnow</a>