Senior AI Engineer (f/m/d)

Your mission

JTL is one of the leading providers of e-commerce software in the German-speaking region – with around 450 employees across the corporate group and more than 50,000 customers from a wide range of industries. We develop scalable, flexible solutions for the online retail of the future – from ERP systems to shop and marketplace integrations.

About the team

You’ll become part of the team building Juno – the agentic AI layer that powers our platform. We turn ambitious AI designs into production-ready systems and love solving hard problems in the areas of reliability, latency and scaling. We work agentic-first, so AI coding assistants like Claude Code and Copilot are part of our daily work.

Your responsibilities

• You build and maintain the AI-powered services and agentic workflows behind Juno
• You develop scalable backend services and APIs
• You design and implement agents and tools
• You optimise AI workflows for reliability, latency, scaling and cost – with integrated monitoring and testing
• You collaborate with product, platform, data and DevOps engineers and help shape our architecture and engineering standards

Your profile

• You bring 7+ years of professional experience in software engineering, with strong expertise in Python or C# and a track record of shipping production-ready systems
• You have built and deployed AI-powered applications in real production environments
• You have hands-on experience with LLMs and AI orchestration frameworks, including RAG and vector search
• You have strong backend and API engineering skills, ideally with FastAPI or a similar framework
• You use AI coding assistants like Claude Code, Copilot or Cursor as a natural part of your everyday work
• You have experience with cloud platforms such as Azure, AWS or GCP
• You have experience with Docker and containerised deployments
• You are familiar with prompt engineering, tool calling and agent design patterns

Why us?

• Remote-first within Germany, with the option to work remotely for up to 180 days per year from eligible countries
• Meal allowance of up to €115 net per month
• Allowance for an ergonomic home-office workspace
• Regular team events, company-wide gatherings as well as summer and Christmas parties to stay connected as a remote-first company
• EGYM Wellpass and JobRad allowance
• Additional financial benefits including capital-forming benefits and a company pension scheme