Software Development Engineer, AWS Marketplace Catalog Search

AWS Marketplace helps millions of AWS customers discover, evaluate, and procure software. The Search team is the intelligence layer behind that discovery; we build the systems that understand what customers are looking for and connect them with the right products, solutions, and services.

We"re a small, high-impact team working on search relevancy, ranking, query intent classification, embeddings, and ML-powered enrichment. Our systems serve every search query on AWS Marketplace and increasingly power adjacent experiences like Agent Mode, console integrations, and the broader AWS discovery ecosystem. The problems are genuinely interesting: hybrid search architectures, LLM-based content enrichment, cross-encoder re-ranking, and building evaluation frameworks that let us measure whether we"re actually getting better.

We"re looking for a Software Development Engineer who wants to own hard problems end-to-end. You"ll design and build systems that directly impact how customers find software on AWS; from the query understanding layer that classifies intent, to the ranking models that decide what shows up first, to the evaluation infrastructure that tells us if we got it right.

This isn"t a role where you"ll be handed a spec and asked to implement it. You"ll be expected to dig into the data, form hypotheses about what"s broken or missing, propose solutions, and ship them. You"ll work closely with applied scientists, product managers, and partner teams building conversational AI and agentic experiences on top of our search platform.

We"re a team that values depth over breadth. We"d rather you understand the problem deeply and ship something well-tested than rush to check a box. Code reviews are thorough but collaborative - we learn from each other. We run lean, which means your work has outsized impact, but also that you need to be comfortable with ambiguity and context-switching.

On-call is part of the deal - typically one week every two months. We invest heavily in operational health so pages are rare, and when they happen, we fix the root cause so it doesn"t happen again.

We"re a mix of experience levels and backgrounds. Senior engineers mentor newer team members, and everyone"s opinion on architecture and approach carries weight regardless of title. We do our best work when we"re learning from each other.

Key job responsibilities

• Search relevancy and ranking systems that serve AWS Marketplace"s full product catalog
• Query understanding and intent classification - figuring out whether a customer wants a specific product, a comparison, or a recommendation
• Embedding pipelines and hybrid retrieval architectures (BM25 + vector search)
• ML model integration for ranking, content enrichment, and signal normalization
• Evaluation frameworks - golden datasets, offline metrics (NDCG, MRR), A/B testing infrastructure
• Search APIs consumed by multiple surfaces including the Marketplace website, AWS console integrations, and AI-powered agent experiences
• Operational excellence for a system that handles every search query on the platform

About the team

Diverse Experiences

AWS values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn't followed a traditional path, or includes alternative experiences, don't let it stop you from applying.

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