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Senior AI Engineer

Stealth Startup·Israel·en
Not specifiedFull-timeAI Engineering

Build production-grade AI and knowledge infrastructure for enterprise software, combining information retrieval, RAG, code intelligence, data ingestion, and secure multi-tenant systems.

Responsibilities

  • Architect hybrid retrieval and RAG pipelines using embeddings, semantic search, lexical indexing, reranking, metadata filtering, chunking, and grounding.
  • Design entity resolution, relationship inference, and dynamic knowledge graphs for software entities, ownership, controls, vulnerabilities, and provenance.
  • Build code intelligence tooling based on AST parsing, call graphs, reference resolution, and compiler or LSP primitives.
  • Develop low-latency ingestion pipelines that normalize, enrich, and synchronize structured and unstructured enterprise data.
  • Create evaluation frameworks for retrieval precision and recall, hallucination reduction, citation accuracy, system health, latency, and cost.
  • Collaborate with Product, Platform, and Cyber Security teams to turn enterprise requirements into production knowledge infrastructure.

Requirements

  • Strong experience building complex backend, data, or AI infrastructure at scale.
  • Production experience with search systems, vector databases, hybrid dense and sparse retrieval, reranking, and LLM orchestration.
  • Deep knowledge of information retrieval, indexing, query expansion, relevance scoring, BM25, and search evaluation.
  • Hands-on experience with AST parsing, symbol resolution, control-flow or data-flow analysis, or LSP integrations.
  • Experience processing structured and unstructured data from repositories, ticketing systems, event logs, APIs, and relational or non-relational stores.
  • Understanding of tenant isolation, authorization controls, data-leakage prevention, and provenance tracking.
  • Ability to work autonomously in a fast-paced environment while balancing architecture and implementation.

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