Senior/Staff Backend Engineer
Employment Info
JOB DETAILS
Responsibilities
- Design, build and operate large-scale search across front end and back end, in a stack of React, TypeScript, Golang, PostgreSQL and OpenSearch running on AWS.
- Own the search relevance and retrieval-quality. Define how relevance is measured, then drive it up through ranking, query pipelines, and tuning.
- Lead search architecture: indexing strategy, hybrid retrieval (combining lexical text search with semantic/vector search), embeddings, and ranking, including the trade-offs each involves.
- Build AI-native applications, connecting retrieval to LLM-powered experiences (e.g. RAG), and stay at the bleeding edge of agentic coding tools.
- Provide technical leadership guiding search architecture, execution, and cross-functional collaboration to deliver impactful outcomes.
- Own search feature delivery end-to-end: breaking down requirements with stakeholders, partnering with Product and Design, supporting other engineers, and ensuring successful delivery.
- Articulate effort-vs-impact trade-offs, including build-vs-buy decisions.
- Keep search operable at scale, performance, observability, and cost as data volume grows.
- Drive high-performance team outcomes by setting rigorous engineering standards, mentoring peers, and improving team practices for quality, velocity, and collaboration.
- Demonstrate SafetyCulture’s values (Think Customer; Open, Honest, Always; Better as a Team; Be Bold, Bring Action).
Desired Qualifications
- Deep search / information-retrieval expertise: lexical text search (inverted indexes, BM25-style ranking), semantic and vector search (embeddings, approximate nearest-neighbour), hybrid retrieval, and relevance tuning.
- Hands-on with RAG: chunking, retrieval pipelines, grounding model outputs, and evaluating retrieval quality.
- Proven track record building search capability into new or existing applications that retrieve information at scale in a multi-tenanted architecture.
- Strong OpenSearch / Elasticsearch operating experience at scale, including how segment merging works and the operational challenges that architecture presents.
- A systems thinker who decomposes large problems into small ones and teaches less experienced engineers to do the same.
- Works autonomously and is comfortable making the call without waiting on sign-off; co-owns technical and product direction rather than building to someone else’s spec.
- Influences where the product goes, not just how it gets built.
- Thrives in a small team at a fast pace, comfortable with little formal process and structure.
- If you have used turbopuffer in production before, let us know!
Are you interested in this position?
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