Senior Site Reliability Engineer (SRE) - Core Messaging Infrastructure - STACKIT (m/f/d)

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. As the IT and digital division of the Schwarz Group, we develop and manage the IT infrastructures for the retail divisions Lidl and Kaufland, as well as Schwarz Production and PreZero. At the same time, we operate as an independent provider in the external market to support companies across Europe in their digital transformation. We bundle our core services in the areas of Cloud, Cyber Security, Data & AI, Communication, and Workspace.

Join us and contribute to digital sovereignty in Europe. With us, you will work at the intersection of agility and security: You will benefit from fast decision-making processes, enjoy genuine creative freedom in your projects, and be able to build upon the stable foundation of the Schwarz Group.

We are looking for a Senior Engineer to build, scale, and own the central nervous system of our cloud infrastructure: a highly resilient, high-throughput message and event platform. As our engineering organization scales rapidly, we are transitioning to a real-time, event-driven architecture to ensure seamless communication between the control plane components of all our products. You will empower dozens of product teams by providing an outstanding developer experience, enabling them to seamlessly publish and consume millions of events per day.

Your Tasks

• You design, deploy, and manage highly available, distributed message broker clusters (such as Apache Kafka, Solace, or NATS) across multiple data centers.
• You ensure the reliability, performance, and fault tolerance of the messaging infrastructure by implementing robust disaster recovery and failover strategies and tune operating system configurations for low-latency delivery.
• You automate the provisioning, scaling, and configuration of messaging clusters.
• You build comprehensive monitoring, alerting, and logging dashboards to track cluster health, throughput, and latency.
• You define best practices for application developers and build a self-service platform that makes it easy for internal teams to independently configure their integrations.

Your Profile

• You bring solid experience in managing large-scale distributed systems in production, coming from a background like Site Reliability Engineering or Platform Engineering.
• You have deep, hands-on administrative experience with enterprise brokers like Apache Kafka or Solace, and you bring experience in managing infrastructure on Kubernetes using the Operator Pattern as well as managing virtual machines using tools like Ansible.
• You bring fluency in coding with Python, Go, or Bash, alongside a strong understanding of Linux performance tuning and networking protocols (such as Transmission Control Protocol/Internet Protocol or Domain Name System).
• Ideally, you have a profound understanding of event-driven architecture patterns and event streaming concepts to help design scalable, real-time data pipelines.
• Your English, ideally combined with German, is the basis for successful communication in our international, agile teams.