Senior Software Engineer (C++) / Platform Engineer (m/f/d)

Are you a motivated Senior C++ or Platform Engineer ready to make an impact within a multicultural environment?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.
Your background:

• Several years of professional experience as a software engineer with a strong C++ foundation.
• Comfortable working across multiple languages and tackling system-wide challenges.
• Practical experience with Kubernetes and cloud-native deployment models.
• Strong grasp of both architectural and operational aspects, with an understanding of real-world behavior in distributed systems.
• Strong verbal and written communication skills in 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.

• 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.

Reach out to Justin (Visualizzare la mail su euspert.app) from the People Team. He will be able to discuss current opportunities and tell you more about our exciting vision and mission @OX.

You’ll join our platform engineering group and work on the systems that power our cloud-native product. Together with experienced engineers across development, operations, and customer-facing teams, you’ll help keep our platform reliable, performant, and ready for the future.

• Ensure the stability and reliability of our core product by maintaining and extending a moderately complex C/C++ codebase.
• Develop and refine Lua-based configuration logic and policy definitions, contributing to automation and system-wide behavior.
• Support automated cluster operations by contributing to lightweight Golang components that interact with our Kubernetes environment.
• Manage and further develop our Kubernetes setup, including Helm charts, cluster-setup tooling, and deployment workflows.
• Own and improve packaging and release engineering processes, ensuring consistent, automated, and high-quality product distribution.
• Enhance internal testing frameworks, increase coverage, and contribute to the overall reliability and quality of the system.
• Provide Level-3 engineering support, diagnose complex issues across the stack, and collaborate with operations to ensure stable cloud-hosted deployments.