Software Engineer (mfd)

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.

Create detailed architecture and design documentation and technical descriptions of the target solutions (e.g., detailed concepts, APIs, runbooks, application documents, initial user manuals).

Qualifications

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.

Readiness to travel : 2-3 on‑site workshops in Bonn, 3 days each.

What do we offer you

• International positive dynamic and motivated work environment.
• Hybrid work model (teleworking / on‑site).
• Flexible schedule.
• Continuous training : preparation for certifications, access to Coursera, weekly English and German classes.
• Flexible compensation plan : health insurance, meal vouchers, childcare, transport assistance.
• Life and accident insurance.
• More than 26 working days of vacation per year.
• Social fund.
• Free service for specialists (doctors, physiotherapists, nutritionists, psychologists, lawyers).
• 100% of salary in case of sick leave.

If you are looking for a new challenge do not hesitate to send us your CV. Join our team!

T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.

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