Observability Engineer (f/m/d) @ A1 Competence Delivery Center

A1 Competence Delivery Center is a vital component of A1’s telecommunications business. Acting as an expertise hub, CDC is dedicated to delivering a full range of high-quality IT, network, financial and other services to support A1’s operations across all OpCos, independent of location.

Using the power of being OneGroup and leveraging synergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’ enhancement, paired with job stability.

You will know we are the right place for you, if you are driven by:

• Opportunities to learn and build your career.
• Meaningful work in a stable and fast-paced company.
• Diversity of people, projects, and platforms.
• A supportive, fun, and inspiring place to work.

We are looking for an Observability Engineer to join our Grafana-focused team. You will develop, maintain, and enhance our observability stack, including dashboards, queries, and custom Grafana applications. By providing engineering and operations teams with actionable insights, you will help ensure the reliability, visibility, and stability of services across the A1 Telekom Group.

Role Insights

• Build and maintain Grafana-based observability dashboards and tools for a large-scale telecom environment.
• Work with a modern open-source stack: Grafana, Loki, Mimir, Tempo, OpenTelemetry.
• Write and optimize PromQL queries for monitoring, alerting, and troubleshooting.
• Develop Grafana applications/plugins using TypeScript (and some Go).
• Support incident response and root cause analysis with reliable observability data.
• Work in a Kubernetes + GitOps (Argo CD) environment.
• Collaborate with platform and engineering teams to improve system visibility and reliability.
• Contribute to the evolution of the observability platform (including migration to Mimir).

• Experience with Grafana dashboards in production.
• Strong knowledge of observability tools (OpenTelemetry, Prometheus/Mimir, Loki, Tempo).
• Good PromQL skills.
• Experience with Go or TypeScript.
• Familiarity with Kubernetes and GitOps (Argo CD).
• Strong problem-solving skills and team collaboration mindset.

• Innovative technologies and platforms to work with.
• Modern working environment for your comfort.
• Friendly, ambitious, and motivated teammates to support each other.
• Thousands of online and in-person learning opportunities for you to grow.
• Challenging assignments and career development opportunities in a multinational environment.
• Attractive compensation package.
• Flexible working schedule and opportunity for home office.
• Numerous additional benefits, including, but not limited to free A1 services.