> Markdown version of [/jobs/ext/3046270-backend-engineer-shopping-agents](https://www.wearedevelopers.com/jobs/ext/3046270-backend-engineer-shopping-agents). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Engineer, Shopping Agents - **Company:** Sage - **Location:** München, Germany (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Databases, Large Language Models, Deep Learning - **Published:** September 24, 2026 - **Apply:** https://startup.jobs/senior-backend-engineer-shopping-agents-sage-ai-labs-10173690 ## About the Role * 5+ years building backend and infrastructure systems, with strong Python * You have owned production systems end to end: deploys, databases, observability, and the pager. You have been the person who got paged, and you fixed the class of problem rather than the incident * You like adversarial problems. Systems where something on the other side is actively working against you * You take correctness seriously because the stakes are real. These systems spend customers' money, so a silent failure is a wrong order, not a red build * You can move without a finished spec. We are small, and the roadmap changes when the market does Nice to have * Built AI-first products or LLM-based agents in production, not just in a prototype * Working knowledge of classic ML and deep learning, enough to reason about retrieval and ranking rather than only calling an API * Background in e-commerce, payments, or fraud and risk infrastructure ## Description We build agents that shop for you. They find products across the open web and complete the purchase end to end. Real carts, real payments, and real systems built to stop them. ## Related Videos - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [The pitfalls of Deep Learning - When Neural Networks are not the solution](https://www.wearedevelopers.com/videos/14-the-pitfalls-of-deep-learning-when-neural-networks-are-not-the-solution) - [Creating Industry ready solutions with LLM Models](https://www.wearedevelopers.com/videos/899-creating-industry-ready-solutions-with-llm-models) - [Headless by Design: Building Enterprise Systems That Agents Can Actually Use](https://www.wearedevelopers.com/videos/100092-headless-by-design-building-enterprise-systems-that-agents-can-actually-use) - [Testing React Backends Like a Pro: Mocking Databases with SQLite](https://www.wearedevelopers.com/videos/100388-testing-react-backends-like-a-pro-mocking-databases-with-sqlite) ## Related Articles - [E-Commerce in the Agentic Age: When "Buy" Becomes a Function Call](https://www.wearedevelopers.com/magazine/750-e-commerce-in-the-agentic-age-when-buy-becomes-a-function-call) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [ I Gave a Video Editor More Autonomy Than a Trading Bot. On Purpose.](https://www.wearedevelopers.com/magazine/773-i-gave-a-video-editor-more-autonomy-than-a-trading-bot-on-purpose) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)