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.

Your Tasks

Design, implement, and maintain backend services and tools using Go

Build, optimize, and troubleshoot Docker/OCI images and containerized applications

Work with Kubernetes to deploy, monitor, and manage applications





Collaborate with engineers and product team to define technical requirements and deliver high‑quality solutions

Write clean, maintainable code and participate in code reviews

Your Profile

Strong experience in Go for backend or platform development

Proficiency in building Docker images, understanding best practices for image size, caching layers, and security

Solid knowledge of Kubernetes, including manifests, operators, deployments, services, and troubleshooting

Good understanding of clean architecture, APIs, and distributed systems

Ability to work collaboratively in a cross‑functional engineering team

Hands‑on experience with container registry platforms, particularly Harbor, including its architecture, API, and customization options

Knowledge of Helm, Kustomize or other Kubernetes packaging tools

Experience with observability stacks (Prometheus, Grafana, OpenTelemetry)

📌 STACKIT Developer Experience - Container Registry - Software Engineer (m/f/d) (Madrid)
🏢 Schwarz Digits
📍 Madrid