Senior Backend Developer – AI-Driven Development

• Design sophisticated backend solutions from the initial technical concept through production operation
• Take responsibility for software architecture, APIs, data models, and integrations
• Contribute to technology decisions and development standards
• Use AI coding tools and coding agents productively for implementation, refactoring, testing, and error analysis
• Critically evaluate and secure AI-generated code with regard to quality, security, and maintainability
• Develop modern AI-powered applications and services
• Integrate LLM APIs and external systems
• Work closely with product owners, business teams, and other developers
• Share knowledge and help shape the responsible use of AI in software development
• Contribute to internal and external customer projects

• 7 to 10 years of professional experience in backend development
• Extensive experience with software architecture, APIs, databases, Clean Code, and automated testing
• Very strong knowledge of at least one established backend technology, such as Python, Java, C#, TypeScript, or Node.js
• Proficiency with Git and CI/CD workflows
• Demonstrable hands-on experience with Codex, Claude Code, GitHub Copilot, or comparable coding agents
• Experience with prompt and context engineering
• Responsible quality assurance of AI-generated outputs
• Technical ownership, a collaborative mindset, and enthusiasm for knowledge sharing
• Very good German language skills
• Good English language skills

• €600 health and wellness budget for massages, glasses, and more
• Top-tier health benefits, including coverage for family members
• Fitness bonuses
• Specialist medical appointments within five days
• Digital health coach
• Flexible working arrangements with home office options
• 30 days of annual leave
• Permanent employment contract
• Professional development opportunities
• Team events and green offices
• Discounts, parking, fresh fruit, and drinks
• Online discounts at more than 500 stores
• Company car for professional and private use
• JobRad bicycle leasing
• EGYM Wellpass with access to fitness and health services
• JobCar with electric vehicle leasing through salary conversion
• MeinMPP: latest hardware available at attractive leasing rates