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

Ignite Next GmbH; Hamburg; Híbrido; EUR 70.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive salary

Flexible working hours

Team events

Training & development

Wellness package

Bike leasing

Moving benefits

Frontier technology exposure

Modern workplace

Descripción de la vacante

eleQtron is seeking a Cloud Engineer to join our team in Hamburg or Siegen. You will build and operate the scalable cloud platform that connects users to our trapped-ion quantum computers, enabling secure submission, compilation, and retrieval of quantum programs.

You will design APIs/SDKs, implement authentication and authorization, and ensure tenant isolation while collaborating with firmware/hardware teams. English proficiency required; German advantageous.

Formación

• 3+ years of hands-on experience building backend or platform services in production.
• Strong Python; systems-level language experience is welcome (Go, Rust, C++).
• Experience designing secure REST and/or gRPC APIs for internal use.
• Experience implementing authentication/authorization in production (OAuth 2.0 / OpenID Connect).
• Security practices: least privilege, secrets management, dependency & container risk awareness.
• Experience with Terraform, Pulumi or similar IaC, and CI/CD pipelines.
• Understanding GDPR and data residency requirements; ability to work with physicists/engineers.
• Fluency in English; German advantageous.

Responsabilidades

• Build and operate cloud services to submit quantum programs and retrieve results.
• Develop and deploy a scalable compilation pipeline from circuit input to hardware instructions.
• Design and maintain public API and SDK entry points to the platform.
• Implement job queuing, scheduling, and dispatch to hardware backends with quota and prioritisation.
• Own authentication and authorization across the stack; manage API keys, tokens, and RBAC.
• Ensure tenant isolation and secure secrets management across the stack.
• Collaborate with quantum firmware and hardware teams on interfaces between cloud services and machines.
• Instrument the platform for observability and monitor latency, throughput, and cost.

Conocimientos

Python

Backend services

API design

Auth & IAM

Security

IaC

CI/CD

GDPR awareness

English proficiency

Herramientas

Keycloak

Terraform

Pulumi

GitLab CI

GitHub Actions

Descripción del empleo

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 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.

Responsibilities:

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:

• Build and operate the cloud services that let users submit quantum programs to our systems and retrieve their results.
• Develop and deploy our compilation pipeline as a scalable cloud service, from circuit input through transpilation down to hardware-level instructions
• Design and maintain the public API and SDK entry points to our platform
• Implement job queuing, scheduling, and dispatch towards the hardware backends, including quota, prioritisation, and result handling
• 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
• Guarantee tenant isolation, so that quantum programs and results are never visible across customer boundaries, and manage secrets and credentials across the stack
• Work with the quantum firmware and hardware teams on the interfaces between cloud services and the machine itself
• Instrument the platform for observability and keep an eye on latency, throughput, and cost

Requirements

Required Skills:

• 3+ years of hands-on experience building and deploying backend or platform services in production
• Strong Python; additional systems-level language experience (Go, Rust, C++) is welcome
• Solid API design skills (REST and/or gRPC) for services other developers have to use
• Practical experience implementing authentication and authorisation in production systems: OAuth 2.0 / OpenID Connect, token handling, and role-based access control
• Secure engineering habits: least privilege by default, proper secrets management, and awareness of dependency and container supply-chain risks
• Infrastructure as code (Terraform, Pulumi, or similar) and CI/CD pipelines (GitLab CI, GitHub Actions, or similar)
• Working understanding of GDPR and data residency requirements, and a genuine interest in digital sovereignty
• Ability to collaborate effectively with experimental physicists and engineers
• Strong adaptability and a quick learning mindset
• Good proficiency in English (written and spoken); German is an advantage for working with public-sector partners

Nice to have (Bonus)

• Running an identity provider in production (Keycloak, Zitadel, Ory, Authentik, or a managed IAM service)
• Multi-tenant isolation patterns in SaaS platforms
• Contributing to security certification work (ISO 27001, BSI IT-Grundschutz, BSI C5) or acting on penetration test findings
• Familiarity with quantum SDKs and toolchains (Qiskit, Cirq, PennyLane, QIR) or hardware abstraction interfaces such as QDMI
• Batch scheduling or HPC environments (Slurm or similar)
• Observability stacks such as Prometheus, Grafana, or OpenTelemetry
• Prior exposure to quantum computing or other deep-tech domains

What you can expect from eleQtron:

• 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
• Bike Leasing: Stay Mobile and Sustainable with Our Company Bike Leasing Program
• Moving Benefits: A warm welcome! We are happy to support employees who move for us with a bonus
• At 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 rooms