Senior Software Engineer - AI Platform (m/f/d)

Company Description

Job Description

Are you excited about building the next generation of AI-powered developer tools? Then join our platform team in Pullach near Munich and help us create intelligent systems that empower SIXT's 800+ global engineers to move fast, stay confident, and build brilliant products. 

We are looking for engineers who geek out about both clean code AND the latest AI breakthroughs - someone who can debate software architecture patterns and the merits of different AI frameworks with equal enthusiasm. 

Your Role At Sixt

• You design and develop our central AI platform using cutting-edge techniques including Model Context Protocol (MCP), Agent-to-Agent (A2A) communication, and advanced AI-powered user interfaces (AG-UI) 
• You build and deploy LLM-powered agents using modern Python frameworks like LangGraph, CrewAI, and PydanticAI, serving production workloads for hundreds of engineers 
• You deploy, monitor, and maintain high-availability AI systems using microservices architecture, event-driven design, and cloud-native technologies 
• You collaborate closely with platform engineers and data scientists to embed intelligent capabilities into SIXT's core development infrastructure 
• You stay at the forefront of AI advancement by researching emerging technologies, experimenting with new models, and proactively recommending strategic improvements to optimize our systems and development workflows 

Your Skills Matter

• Education You have a degree in Computer Science, Engineering, or related technical field  
• Experience You gained strong backend development skills in Python, Go, or Java and solid software engineering fundamentals 
• Cloud Skills You bring production experience with cloud technologies (Kubernetes) and MLOps frameworks 
• Deployment You already built, deployed and maintained LLM-powered applications or AI agents in production 
• AI Experience You got hands-on experience with prompt engineering, RAG systems, model serving, or inference optimization

What We Offer

• Extra benefits Enjoy discounts on SIXT rent, share, ride and SIXT+, attractive vehicle leasing offers, and exclusive deals with partners for travel, tech, fashion and more
• Mobility boost We support you with a monthly mobility allowance of €20 per month for even more freedom
• Future security We contribute to your retirement plan and support you with capital-forming benefits to ensure you are well covered
• Feel-good atmosphere Stay active with our modern SIXT gym, various leisure activities like the gaming area or the SIXT choir, and enjoy our high-quality employee restaurant
• Flexibility Enjoy 30 days of vacation and a hybrid working model with flexible hours
• Giving back Take one day each year to volunteer at a charitable organization dedicated to supporting children

Additional Information

About Us:

We are a globally leading mobility service provider with a revenue of €4.00 billion and around 9,000 employees worldwide. Our mobility platform ONE combines our products SIXT rent (car rental), SIXT share (car sharing), SIXT ride (taxi, ride, and chauffeur services), and SIXT+ (car subscription), giving our customers access to our fleet of 350,000 vehicles, the services of 4,000 cooperation partners, and around 5 million drivers worldwide. Together with our franchise partners, we are present in more than 110 countries at 2,000 rental stations. At SIXT, top-tier customer experience and outstanding customer service are our highest priorities. We believe in true entrepreneurship and long-term stability and align our corporate strategy with foresight. Get started with us and apply now!