(Senior) Software Engineer – Go / Kubernetes Operator (m/f/x)

Company Description

As the IT of the REWE Group Austria, we work together with our more than 700 employees to develop innovative IT products and services for all our corporate divisions in Austria and abroad, setting the tone for modern trade. Join the Integration Platform Team at REWE International AG. We build Go-based Kubernetes operators and platform APIs that automate the provisioning, orchestration, and lifecycle management of platform services. As a Software Engineer, you will design, implement, test, and extend these operators and the surrounding platform tooling. 

Job Description

•  Design and build Go-based Kubernetes Operators that make services like Kafka available through self-service. 
•  Work on existing operators and help design new ones, including their APIs, internal structure, tests, and long-term maintainability. 
• Use Custom Resource Definitions, controllers, and reconciliation logic to automate platform tasks in a Kubernetes-native way. 
• Build self-service features that work reliably across multiple Kubernetes clusters and are easy for development teams to use. 
• Work with platform engineers and product teams to understand what they need and build solutions that are practical, reliable, and easy to use. 
• Discuss technical designs, document important decisions, and collaborate with teams across countries and organizations.  

Qualifications

• Software Engineering: Strong proficiency in Go, or a comparable language such as Rust, Java, or C++. You write clean, testable, maintainable code and care about good abstractions, API design, and code quality.  

• Kubernetes Expertise: Deep understanding of Kubernetes internals, including the controller/operator pattern, Custom Resource Definitions, and the reconciliation loop. Hands-on experience building or extending operators is a strong plus. 

• Software Architecture & Documentation: Experience with architectural documentation and modelling approaches such as arc42, UML, C4 model, ADRs, or similar methods. You can communicate technical designs clearly to both engineers and stakeholders. 

• Testing & Maintainability: Experience writing automated tests and designing software that is easy to understand, extend, and operate over time. 

• Monitoring Fundamentals: Practical experience with Prometheus and Grafana, or comparable observability tooling. You know how to instrument services and set up meaningful alerts and dashboards. 

• Apache Kafka: Familiarity with core Kafka concepts (topics, consumer groups, partitioning, replication) and production operations. 

• CI/CD & GitOps: Familiarity with GitOps workflows and CI/CD pipelines in a Kubernetes-native context. 

• B2 English proficiency or higher. 

Additional Information

• Flat hierarchies and short decision-making channels
• A family-friendly company culture with flexible working hours and remote working options available according to your individual needs
• Numerous training and further development opportunities within the Group (5% of working time for self-organized training and education)
• A lunch allowance
• Staff shopping and travel discounts
• Extensive workplace wellness programme including fitness classes, massages, etc.
• An industry-standard, attractive and performance based annual gross salary starting at 60.000 Euro (on a full-time basis) with the possibility of higher pay according to experience and qualifications

No matter where you are in your career, we have a path for you. Whether you’re looking for your first job, advancement in your field, or a new career shift. We’re proud to employ great people who are passionate about their jobs. But they’re all different. No matter who you are, what you need and where you’re going, REWE Group can be a part of it. Apply now!

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We promote a diverse and inclusive work environment. Therefore, we welcome applications from people of different gender, age, cultural or social background, sexual identity and applications from people with disabilities. In addition, we would like to increase the proportion of women in technical professions and are particularly pleased to receive applications from women for this position.