IONOS

You operate, harden, and evolve our authoritative and recursive DNS, DHCP, forward-proxy, DNS and IP Management (DIM), and NTP services so they stay boringly reliable at internet scale. You automate everything that should be automated, using...

You support our teams in increasing efficiency across campaign ideation, creation, and analytics by identifying and applying the right AI tools to their existing workflows. You advise on leveraging AI to increase personalization and effectiveness in...

You are the central entity that protects and shapes the technical interface between the Nextcloud Office frontend and the LibreOffice C++ core. Your task is to solve the "impossible" architectural challenges that arise when a massive, stateful C++...

You design and operate a "5-Minute Onboarding" workflow with Docker and DevContainers to ensure that "it runs on my machine" becomes a reality for every new colleague. You operate the team's local AI infrastructure, including...

You design communication protocols (WebSockets, WOPI, Shared Memory) that enable Node.js to control the C++ core with a latency of under 10 ms. You analyze and reconstruct existing C++ components to identify the "Source of Truth" for complex document...

As a Senior Manager DC Software Development, you are responsible for leading and coordinating our software development team in Karlsruhe, which specializes in the purchase, development, and optimization of software solutions for our data center and bare...

As a Staff Network Solutions Architect, you are the driving force behind the technical definition, design, and architectural leadership of network architectures and services in cloud environments. You develop innovative solutions that support the...

You design, develop, and maintain cloud-native applications in Golang, including Kubernetes operators, REST APIs, and libraries. You design and implement new features to expand our VPS offering. You improve and maintain the existing architecture and...

You lead technically and actively participate in funded research projects (e.g., Horizon Europe, IPCEI-CIS, Digital Europe), including architecture decisions, technical deliverables, and work package management. You design sovereign, secure, and...

You develop and fine-tune the logic for rapid and effective defense against DDoS attacks at the network and application levels. You continuously optimize the detection and mitigation pipelines for the automated processing of attack patterns, including...

As a Website Analyst, you are the analytical backbone of our online shop. You know how to generate not just reports, but real growth levers from vast amounts of data. You work directly at the interface between Business, Marketing, and Product, ensuring...

As a Product Owner, you will take end-to-end responsibility for a product area of our websites and online shops or for a brand within the IONOS Group, collaborating with cross-functional experts. As the person responsible for the conversion rate, you...

As a Senior Manager DC Software Development, you are responsible for leading and coordinating our software development team in Karlsruhe, which specializes in the purchase, development, and optimization of software solutions for our data center and bare...

As a Senior Manager DC Software Development, you are responsible for leading and coordinating our software development team in Karlsruhe, which specializes in the purchase, development, and optimization of software solutions for our data center and bare...