Job Description

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.

Our mission is to build a modern ecosystem for all IONOS customer support needs, supporting 8 million contracts across 10 markets. We are building a next-generation AI platform designed to redefine customer interaction through high-performance, multimodal AI powered by state-of-the-art Speech-to-Speech (S2S) models and advanced LLMs. As a DevOps Engineer, you will build the foundation of this platform, designing distributed systems that power real-time pipelines and ensuring our AI scales seamlessly.

Tasks

• Design, build, and maintain CI/CD pipelines and container orchestration workflows in collaboration with development teams.
• Maintain and optimize Debian-based Linux systems to ensure high availability and monitoring across multiple data centers.
• Automate infrastructure provisioning and maintain ISO security standards, including vulnerability management and dependency tracking.
• Architect and optimize low-latency streaming infrastructure for Speech-to-Speech (S2S) to ensure natural voice interactions.
• Host and monitor specialized AI tooling, including MCP servers, Vector databases, and caching applications.

Qualifications

• Strong Linux administration experience (preferably Debian) and hands-on experience with Kubernetes in production.
• Proven track record with cloud-native architectures and infrastructure-as-code tools like Terraform, Ansible, and ArgoCD.
• Solid understanding of networking fundamentals, including subnetting, routing, and BGP concepts.
• Proficiency in scripting languages such as Python or Bash for troubleshooting distributed systems.
• Experience with monitoring and observability stacks, specifically Prometheus, Grafana, and ELK.

Nice to have: Experience with telephony gateways (SIP/RTP), migrating VM-based infrastructure to containers, or exposure to AI-driven development workflows.

Location: Berlin or Karlsruhe

Benefits

• Hybrid working model.
• Flexible working hours through trust-based working hours.
• At some locations a subsidized canteen and various free drinks.
• Modern office space with very good transport connections.
• Employee events such as summer and winter parties, as well as workshops.
• Numerous training and development opportunities.
• Various health offers, such as sports and health courses.

About IONOS

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve.

We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.