Software Engineer – Cloud Platform

WE DELIVER TECHNOLOGY SOLUTIONS CONNECTING YOUR WORLD! Group Network Technology (GNT) is a key part of Deutsche Telekom, where international teams shape and deliver innovative telecommunications IT and network technology solutions across Europe - from architecture and engineering to development, testing, infrastructure, and operations. In Cloud, we build and operate Deutsche Telekom’s on-prem Telco Cloud across all layers - from hardware to orchestration - based on open-source technologies. This is where modern infrastructure meets real-world impact at scale. Our chapter-based model creates a strong home for expertise, learning, and collaboration - empowering people to grow, contribute in agile teams, and thrive in an inclusive environment while making a meaningful difference for our customers. What you'll be doing • Develop, test, and continuously improve cloud-native CaaS and PaaS capabilities, primarily using Go. • Contribute to Kubernetes operators and controllers that automate cluster and platform lifecycle processes. • Support the development of an automated Kubernetes platform and its integration with the surrounding infrastructure. • Develop and maintain CI/CD and GitOps workflows using technologies such as GitLab CI/CD, Helm, Flux, or Argo CD. • Implement improvements to the platform’s reliability, security, observability, and performance. • Analyze software and platform issues, resolve bugs, and contribute to root-cause analysis. • Collaborate with international engineering and operations teams and actively share knowledge within the team. • Participate in on-call rotation (for stand-by operations). What we are looking for • University degree in Computer Science, Telecommunication Engineering, Information Systems, or comparable qualification. • Fluent in English. • 2+ years proven experience in cloud technologies. Technical skills • Practical software-development experience with Go or a comparable programming language. • Solid understanding of Kubernetes concepts, APIs, workloads, and lifecycle processes. • Initial or practical experience with Kubernetes operators, controllers, or comparable automation. • Experience with automated testing, code reviews, version control, and technical documentation. • Experience with CI/CD or GitOps tools such as GitLab CI/CD, Helm, Flux, or Argo CD. • Familiarity with observability tools such as Prometheus or Grafana. • Basic understanding of cloud-native security principles. Nice-to-Have • Familiarity with Kubernetes operators, controller-runtime, or Kubebuilder. • Exposure to Cluster API or comparable cluster-lifecycle automation. • Experience with Infrastructure as Code using tools such as Terraform or Helm. • Familiarity with Kubernetes networking, multi-cluster environments, or private-cloud infrastructure. • Experience in telecommunications, OSS/BSS, or large-scale private-cloud environments. Don't worry if you miss some of these skills – we are here to grow and develop you. Social skills • A mindset of continuous learning, willingness to share knowledge and learn from others. • Ability to think outside of the box and find solutions to complex problems. • Being a strong individual contributor and an empathic team player. • Ability to communicate effectively with different stakeholders in the company. What you can expect • Our team is dedicated to supporting new team members and we're building an environment that appreciates knowledge sharing and mentorship. Our experienced team members are passionate about coaching junior and new members of the team. • We take a long-term commitment when it comes to our employees. You will develop your career working in truly innovative projects of Deutsche Telekom Group, exploring the latest trends and technologies which enable the product development process. • We offer an open and friendly working environment, competitive remuneration package and attractive benefit scheme. • Enjoy the benefits of flexible hours, part-time roles, and remote work options - so you can balance your career with family life and personal priorities. Benefits: HUF 700,000 gross pro-rata cafeteria budget HUF 45,000 / month gross telecommunications services discount which you may apply to Telekom services you or a close family member of yours subscribe to. Flexible working hours with partial home office options. Comprehensive benefits package (laptop, mobile phone, cafeteria, insurance).Employee discount rates on Telekom services. Modern, multinational working environment with amenities like a sky bar and rooftop gym. Access to our Employee Assistance Program. Comprehensive Healthcare Package You will receive a minimum of 25 days of basic vacation per year (based on age) We offer 15 days of additional vacation if you become a father, with 100% pay You'll have access to thousands of professional and skills development materials from our extensive digital training palette We offer regular internal training sessions and workshops You can learn English and German, even with a native speaker You’ll have access to Percipio and Coursera courses Connect with us: Clemens, Chapter Area Lead Cloud - https://www.linkedin.com/in/clemensloos/