Senior DevOps Engineer is responsible for entire lifecycle of Continuous Integration/Continuous Deployment pipelines and Infrastructure as Code approaches.
Takes account and defines automated configuration management, release management, build, test and deployment activities.
Provides prototypes and concepts for further automation of assigned technology.
Join our International Team and help us to create greenfield software for one of the biggest and most important project in Deutsche Telekom Group.
Development and operation of Keycloak/RHSSO-based IAM capabilities on Kubernetes, enabling secure SSO and machine-to-machine access for internal products.
Support team development by standardizing deployment, configuration, and troubleshooting practices, continuously improving reliability, security, and automation around the IAM platform.

Requirements

At least 3 years of work experience as DevOps / Platform Engineer (or SRE) with hands-on Kubernetes operations in production environments.
Solid understanding of OAuth 2.0 and OpenID Connect concepts for modern IAM integrations and SSO flows.
Practical experience with GitOps delivery using Argo CD (Git-driven continuous delivery for Kubernetes).
Experience working with containers (Docker) and CI/CD pipelines (e.g. GitLab) from commit to production.
Comfortable scripting in Python and Bash for automation and troubleshooting tasks.
IAM, Keycloak & troubleshooting IAM fundamentals: authentication vs authorization, identity lifecycle and provisioning flows, role/permission model design, user types, and machine-to-machine concepts.
Keycloak/RHSSO: hands-on experience with realms, clients, roles, scopes, identity providers, and themes, including troubleshooting authentication and authorization flows end-to-end.
Configuration-as-code mindset for Keycloak: managing realms/clients/roles via versioned configuration and promoting changes across environments.
Operability: diagnose and resolve platform issues (CPU/memory pressure, pod health, configuration errors), contribute to incident response, and support upgrades and migrations.
Cloud, DevOps & Containerization Kubernetes & networking: experience with deployments, services, ingress, environment-specific configuration, and secure handling of secrets/config maps.
Packaging & delivery: Helm charts and Argo CD application management, including using Helm-based deployments through Argo CD for GitOps workflows.
Experience in CI/CD using GitLab, including building, testing, and deploying containerized workloads.
Infrastructure as Code (IaC) approach for managing environments and application infrastructure.
Observability: experience with Grafana/Prometheus, ELK stack, and basic Dynatrace usage for monitoring, alerting, and troubleshooting.
Experience with PostgreSQL in operational contexts (backups and restore, basic performance indicators, connection troubleshooting).

Benefits

Financial benefits
Benefits with focus on learning and development
Benefits with focus on health and sport
Benefits with focus on family and work – life balance
Other benefits

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

KubernetesOAuth 2.0OpenID ConnectGitOpsArgo CDDockerCI/CDPythonBashInfrastructure as Code

Soft Skills

troubleshootingautomationreliability improvementsecurity improvementstandardization