Senior IT Infrastructure & Network Engineer (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. Role Overview: We are looking for a Senior IT Infrastructure, Network & Secure Access Engineer to support and evolve our internal IT environment at eleQtron. This is a hands-on role focused on implementing and operating secure, scalable IT systems across multiple locations. In this role, you will act as the primary IT representative for our Hamburg site, working across infrastructure, networking, secure access, and engineering environments to support both research and business operations. You will work closely with IT Leadership to execute eleQtron's infrastructure, networking, and secure access strategy. Responsibilities: Implement and operate IT infrastructure across cloud, network, endpoint, and secure access environments Act as the primary IT contact and technical representative for the Hamburg site while supporting users and infrastructure across all eleQtron locations Implement and maintain monitoring, observability, and alerting solutions across infrastructure, networks, engineering platforms, development systems, and secure access environments Support Microsoft 365 services, Azure infrastructure, identity management, and endpoint management platforms (Intune, Autopilot, Entra ID) Support and maintain internal development platforms, including GitLab, CI/CD environments, and license servers Design, implement, and maintain enterprise network infrastructure, including switching, segmentation, wireless networking, and secure connectivity Support secure access solutions, including