Full Stack Developer

• Develop and operate customer portals for sovereign cloud services
• Build self-service ordering and tenant-management functionality
• Provide transparency into resources, costs, and permissions
• Design, develop, and maintain REST and SOAP web services and APIs
• Integrate portals with cloud platforms, CMDB, identity management, and billing systems
• Develop and operate a central data platform
• Collect, harmonize, and enrich inventory, monitoring, usage, and contract data
• Deploy and operate containerized applications in certified company data centers
• Maintain and optimize CI/CD pipelines for automated, reproducible, and auditable deployments
• Implement data residency, GDPR, role and permission models, and audit trails
• Shape database architecture and data models for performance, quality, and maintainability
• Collaborate with stakeholders to translate requirements into scalable technical solutions
• Improve the platform, development processes, and technical standards
• Participate in architectural decisions and code reviews
• Share technical experience with others

• Experience developing web applications and RESTful APIs with modern frameworks and technologies
• Confidence with JavaScript/TypeScript and PHP
• Shell scripting in a Linux environment
• Solid knowledge of MySQL/MariaDB, database design, and data modeling
• Familiarity with modern web technologies and graphical user interfaces
• Experience with CI/CD pipelines and DevOps tooling such as GitLab or Azure DevOps, or willingness to learn
• Interest in containers, Kubernetes, and cloud technologies
• Familiarity with Linux and Windows environments
• Ability to work independently and closely with stakeholders and an agile development team
• Business-fluent English, written and spoken
• German language skills are an advantage
• Production Kubernetes, Helm, GitOps, or service mesh experience is advantageous
• Identity and access management experience with Keycloak, OIDC, or SAML is advantageous
• Experience with multi-tenant permission models is advantageous
• Experience with OpenStack, Proxmox, or VMware APIs is advantageous
• Experience with SOAP and legacy interfaces is advantageous
• Familiarity with ISO 27001, BSI C5, or NIS2 is advantageous
• Experience with Vue or React is advantageous

• Individual training opportunities and diverse development opportunities
• Personal mentor
• Flat hierarchies
• Strong feedback culture
• Regular performance reviews
• Flexible working hours
• Option to work remotely
• Height-adjustable desks
• At least 2 monitors per workstation
• State-of-the-art office spaces with collaboration and retreat areas
• Company-sponsored participation in sporting events
• Equipment for sporting events through the DATAGROUP store
• Special leave days
• Company health insurance