Workplace image SIXT SE

Senior Full Stack Engineer

New

SIXT SE

Job

In this role, you build Go microservices and AI agents to automate vehicle replacement logistics while collaborating closely with product and data teams, taking ownership of the entire lifecycle.

Job summary

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Job technologies

Your role in the team

  • When a replacement car is needed fast, someone has to make sure the right vehicle is found, offered and delivered without delay.
  • In our Car Replacement technology team in Pullach, near Munich, you’ll build the Go services and AI agents that power it.
  • These are production systems that make decisions, take action, and automate at scale across SIXT and our partner network, operating on real data with real business impact.
  • You will work closely with Product, Data Science, and business experts, and your work will deliver measurable results.
  • You build and run Go microservices in a cloud-native, event-driven architecture that powers Car Replacement across internal systems and partner integrations.
  • You design, ship and operate AI agents in production, with multi-step orchestration, RAG and context management.
  • You also own how they are evaluated and safeguarded, and your patterns become the team’s standards.
  • Du verantwortest Features ganzheitlich – in einem erfahrenen Team mit kurzen Wegen zu Product und zum Business.
  • You challenge unclear requirements, define acceptance criteria, then implement, deploy, monitor, and validate in production without waiting for a detailed specification.
  • You build the TypeScript and React interfaces that make agent behavior transparent and usable for business users (roughly 30% of your time, with the focus on backend).
  • You build quality in from the start through automated testing, observability, code reviews and agent evaluation, and you help shape the team’s technical direction.
  • You use AI engineering tools across the full software lifecycle, and you stay accountable for the correctness of what you ship.

Our expectations of you

Qualifications

  • You have built and run distributed services in production.
  • You are strong in Go, REST/gRPC API design, event-driven systems, containers and Kubernetes, CI/CD, and observability.
  • You have built and shipped AI agents in production, not just used AI tools to write code.
  • You know multi-step orchestration, RAG, context management, and agent evaluation and guardrails.
  • You can explain what worked, what failed, and how you measured it.
  • You start with the problem, ask how success will be measured, and take responsibility for the outcome, not just the code.
  • You value automated testing, observability, maintainability, and systematic root-cause analysis as core parts of your craft.
  • You communicate clearly with engineers, Product, Data Science, and business stakeholders, and you give and receive constructive feedback.

Experience

  • Experience with TypeScript applications, ideally React.

What we offer

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

Benefits

Topics you will work on

Job locations

Map of the job locations
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  • Location Pullach im IsartalMain location
    Zugspitzstr. 1 , 82049 Pullach, Germany

About your employer

SIXT SE

Pullach, Stuttgart, Berlin, Rostock

Mobility means freedom. The freedom to experience the world and share it with others. That's why we, the SIXT family with more than 6,000 employees worldwide, question the status quo every day and work tirelessly to create a future where people all over the world have access to safe, efficient, and comfortable mobility at the push of a button.

Language
English
Company type
Established Company
Work model
Hybrid, Onsite
Industry
Internet, IT, Telecommunication · Logistics, Transportation
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Senior Full Stack Engineer

SIXT SE