Senior Backend Engineer – Shopping Agents

Job not on LinkedIn

🕒 September 24

🇩🇪 Germany – Remote

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 25%

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 architecture, code, deployments, monitoring, and on-call for systems transacting around the clock • Build and operate checkout agents that drive live checkouts at scale • Make checkout-agent failures rare and recovery automatic across changing retailer systems • Scale product ingestion from hundreds of sources to thousands using self-generating, self-validating, and self-monitoring infrastructure • Develop search and ranking systems 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 address adversarial systems and failure modes • Strong focus on correctness for systems handling real customer payments • Ability to work without a finished specification in a small, changing environment • Experience building AI-first products or LLM-based agents in production (nice to have) • Working knowledge of classic ML and deep learning for retrieval and ranking (nice to have) • Background in e-commerce, payments, or fraud and risk infrastructure (nice to have)

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