DevOps Engineer (m/f/d)
000 employees worldwide. We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers’ experience. We trust people: we offer autonomy, continuous support, and a collaborative environment where you can grow without limits. We are one global team, guided by respect, integrity, and a passion for doing better every day.
We seek an experienced professional to design and enhance our Kubernetes-native automation OCAS (Operator-based Cloud Automation Solution) for the Telekom Cloud environment. OCAS delivers fully declarative lifecycle management (deploy, configure, update, teardown) for containerized applications/CNFs using CRDs, controllers, and GitOps with FluxCD. Integrations include Vault/ESO, Kafka, Logging Operator, Telegraf, GitLab/Artifactory.
Scope of Work In general the scope of work is the creation of solution and functional concepts based on the proposed solutions and project orders as of: Basic functionalities, required models, interface design, migration concept, evasion and relapse scenarios and in more detail: Design, implement and test Production-grade Kubernetes operators (Go, controller-runtime/Kubebuilder or Operator SDK) with tested CRDs: CNF LCM Operator, Service LCM Operator, Infrastructure Provisioning Operator. Test-Automation-Framework handler, Helm CNF Operator/Wrapper.
Define reconciliation logic, status/events, finalizers; implement idempotent, resilient controllers for the targeted solution. Design, implement and test Configuration-as-Data: templates, environment specific rendering, and Git-based workflows. Design, implement and test working integrations with Kafka, Logging Operator, Telegraf. Create, build and test shared parameter models (“customer profile”) and config builders for cross-operator parameter injection.
Create and optimize GitOps repositories with FluxCD (multi-env/multi-cluster) with release templates, Helm/Kustomize overlays, release definitions, and inventory CRDs. Specify, develop and test a fully automated CNF lifecycle including in-service upgrades, dependency management (blocking/non-blocking), scaling, and clean teardown. Observability by design: logs, events, metrics, error handling, retry/backoff.
Develop, Implement and test Security & compliance integration: RBAC, Vault/ESO secret handling, image/chart provenance (Artifactory), policy alignment. Implement project specific CI/CD pipelines (GitLab) for build, test, security scanning, and release to Artifactory. g. detailed concepts, APIs, runbooks, application documents, initial user manuals). Experienced professional who meets approximately the following profile: Degree in Computer Science or a comparable STEM program.
At least five years of relevant professional experience in software development . In-depth knowledge of object-oriented programming languages (ideally Go or Python). Solid experience with Kubernetes, Kubernetes APIs, CRDs, reconciliation patterns, finalizers, Role-Based Access Control (RBAC). Solid GitOps; Helm/Kustomize; GitLab CI/CD. Proven expertise in software architecture. Business-fluent English skills. What do we offer you? Work environment & flexibility International, dynamic and collaborative environment. ). Hybrid work model (remote/on-site).
Flexible working hours. Growth & development Customized training: access to Coursera to learn whatever you want, whenever you want. Weekly language classes (English & German). International Mentoring Sessions & Experience Days. Compensation & benefits Flexible compensation plan (health insurance, meal vouchers, childcare, transport). Telemedicine. Life and accident insurance. Social fund. Wellbeing & time off 26+ working days of vacation per year. Free access to specialist services (medical, legal, wellness). 100% salary coverage during medical leave.
And many more advantages of being part of T-Systems! If you are looking for a new challenge, do not hesitate to send us your CV! Please send CV in English. Join our team! T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.