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Open-Xchange

Site Reliability and Platform Engineer

Germany
Linux Kubernetes Helm Ansible Bash Python HTTP SMTP IMAP NGINX LDAP
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Description

Site Reliability & Platform Engineer (m/f/d)

Department: Public Sector

Employment Type: Permanent employee

Schedule: Full or part-time

Seniority: Experienced

Location: Germany

Are you an experienced platform engineer who enjoys taking responsibility, contributing to technical decisions, and building reliable systems that others depend on? If you care about solid engineering, open standards, and working on infrastructure that really matters, let's talk!
Europe’s digital infrastructure is evolving and we’re looking for people who want to help shape where it’s heading.
At Open-Xchange, we develop open-source communication and collaboration software used by public sector organizations, telcos, and hosting providers to keep data secure and under their control. Our products cover email, collaboration, DNS security, and related services, and are used by millions of people worldwide.
  • We work in a non-hierarchical organization that empowers everyone to take responsibility, stay focused, and contribute directly to the company’s success and customer value.
  • We value expertise and continuous professional development. Our professionals work closely with experienced colleagues, take ownership of their work, and continuously expand their skills.
  • Openness and diversity are core to OX. Different perspectives, backgrounds, and ways of thinking strengthen our collaboration and help us see the bigger picture.
As part of the cross-functional OX Public Sector team, you will support customers in designing, deploying, and operating secure collaboration and communication platforms in Kubernetes-based Linux environments. You will work closely with customers as well as internal product, development, and operations teams to ensure reliable platform deployments and to strengthen digital sovereignty in Germany.
  • Assess customer requirements, technical constraints, and operational environments.
  • Partner with customer technical teams to bridge product and infrastructure gaps.
  • Design solution architectures and high-level system concepts, including cross-system integrations and data flows.
  • Enable customer engineers to deploy and manage our (Kubernetes-based and VM) solutions.
  • Act as a technical point of contact for customers and partners throughout the platform lifecycle.
  • Collaborate internally with engineering, product, and operations teams on behalf of the customer.
  • Support troubleshooting, platform optimization, and operational handovers.
  • Contribute to documentation, best practices, and knowledge sharing across teams.
  • Operating system: Linux
  • Deployment models: Kubernetes-based
  • Deployment & configuration: Helm, Ansible
  • Scripting languages: Bash, Python
  • Protocols: HTTP, SMTP, IMAP
  • Platform components: NGINX, LDAP
  • Experience in a customer-facing technical role with a strong Linux background.
  • Hands-on experience with Kubernetes-based platforms and containerized deployments.
  • Familiarity with scripting, automation, and infrastructure tooling.
  • Ability to understand complex technical environments and translate requirements into practical solutions.
  • Strong verbal and written communication skills in both German and English. 
  • Intrinsic motivation to take ownership and a passion for open-source technologies, thriving in a low-hierarchy environment.
  • Comfortable working in a remote-first environment with multicultural teams across different time zones.
  • The flexibility to work 100% remotely ensures a work environment that suits you best.
  • Flexible working hours that allow you to successfully combine your home and family responsibilities with work. 
  • Getting together in-person for workshops and fun team events. 
  • Time off to volunteer – and mental health support when you need it.
  • We provide financial relief through corporate benefits and a subsidy for ergonomic chairs and desks.
  • We can discuss further location-related benefits together in an initial talk.
Join us in our fight for an open internet and deliver added value! Click “Apply now” to submit your application.
Reach out to Justin ([email protected]) from the People Team. He will be able to discuss current opportunities and tell you more about our exciting vision and mission @OX.
Open-Xchange
Open-Xchange

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