Senior Backend Engineer, Shopping Agents

Job not on LinkedIn

🕒 September 24

🇩🇪 Germany – Remote

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 24%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Fusion AI Labs

WebsiteLinkedInAll Job Openings

11 - 50 employees

💼 Consulting

🏥 Healthcare

📦 Logistics

Consulting • Healthcare • Logistics

Fusion AI Labs is a technology company specializing in web and mobile app development, brand building, and artificial intelligence solutions. Their services encompass AI agent development, workflow automation, and chatbot creation, designed to enhance customer interactions and streamline business processes. With a commitment to innovation and excellence, Fusion AI Labs offers tailored solutions in areas such as enterprise resource planning, financial management, and customer relationship management.

📋 Description

• Own checkout agents: architecture, coding, deployments, monitoring, and on-call for systems transacting around the clock • Build and operate frontier-model computer-use agents driving live checkouts at scale • Develop infrastructure that handles retailer variability and enables rare failure and automatic recovery • Scale product ingestion from hundreds of sources to thousands • Build infrastructure that generates, validates, and monitors itself • Implement search and ranking using embedding-based retrieval, LLM query understanding, reranking, and caching • Work directly with the CTO

🎯 Requirements

• 5+ years building backend and infrastructure systems, with strong Python • Experience owning production systems end to end, including deploys, databases, observability, and on-call responsibilities • Ability to resolve underlying classes of production problems rather than only individual incidents • Ability to work on adversarial systems where external factors actively create challenges • Strong focus on correctness for systems handling customer payments • Ability to work without a finished specification in a rapidly changing environment • Nice to have: production experience building AI-first products or LLM-based agents • Nice to have: working knowledge of classic machine learning and deep learning, including retrieval and ranking • Nice to have: background in e-commerce, payments, or fraud and risk infrastructure

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