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GEHA

Non-profit health insurer for federal employees

Senior AI Context Engineer

AI Application EngineeringUpdated on Nov 13
Full-timeRemote in USA$124.7k - $157.7k

About the Job

Requirements

  • At least 5 years of experience in backend software engineering, applied machine learning or search, or data-centric application development.
  • 1–2 years of hands-on experience optimizing AI and retrieval-augmented generation architectures, prompt context strategies, and vector retrieval pipelines for large language model applications.
  • Advanced proficiency in Python and SQL, with familiarity with modern orchestration tools such as Airflow, Prefect, or Temporal.
  • Deep experience with parsing frameworks such as LlamaIndex, Unstructured.io, or LangChain document loaders to process complex layouts, tables, and unstructured documents.
  • Hands-on experience with vector databases, embeddings, and semantic search platforms such as Pinecone, pgvector, Weaviate, Qdrant, or Azure AI Search.
  • Familiarity with retrieval-augmented generation and large language model context evaluation frameworks such as Ragas, TruLens, or Arize Phoenix to measure retrieval recall, precision, and groundedness.
  • Practical experience handling sensitive healthcare data, including protected health information and personally identifiable information, in high-compliance software environments.
  • Ability to provide non-cellular high-speed internet service such as fiber, DSL, or cable modem for a home office, with minimum speeds of 30 Mbps download and 5 Mbps upload and latency below 80 ms; hotspots, satellite, and wireless internet service are not allowed.
  • Ability to maintain a dedicated home workspace without ongoing interruptions to protect member protected health information and HIPAA information.

Responsibilities

  • Build and refine workflows for parsing structured and unstructured information, processing layouts, and chunking PDFs, clinical notes, data, and policy documents into high-quality contextual units for large language models in partnership with cross-functional teams.
  • Implement hybrid search mechanics, metadata routing, and reranking logic to improve retrieval precision and minimize model hallucinations.
  • Design context payload specifications and metadata structures that feed Model Context Protocol servers and large language model orchestration tools built by application developers.
  • Recommend and implement vector indexing strategies, embedding schemes, and semantic query designs inside enterprise-provisioned vector stores such as Pinecone, pgvector, and Azure AI Search to enable high-performance, low-latency retrieval.
  • Design and manage metadata tagging schemes for precise filtering, hybrid search, and domain-specific context retrieval.
  • Establish automated evaluation frameworks to monitor retrieval relevance, context quality, groundedness scores, and embedding drift over time.
  • Ensure document processing and contextual payloads adhere to HIPAA and HITRUST standards by implementing automated masking and tokenization for protected health information.
  • Apply role-based access control rules within vector metadata so AI search queries return only contextual snippets the active user is authorized to see.
  • Maintain context tracking and audit logs for prompt payloads and establish data hand-off specifications when transitioning validated innovation prototypes to enterprise Data & Analytics or IT teams.
  • Build upon reference architectures, continuous integration and continuous delivery templates, and established golden paths.
  • Work with the AI Product Owner and AI Full Stack Developers to supply high-accuracy context layers for upcoming generative AI features.

About the Company

GEHA

Non-profit health insurer for federal employees

GEHA (Government Employees Health Association) is a non-profit organization that provides medical and dental plans to federal employees, retirees, and their families across the United States. It serves over two million individuals, making it the second-largest national health plan for this demographic. GEHA offers a range of medical and dental plans, allowing members to choose coverage that fits their needs and budget, with access to a broad network of doctors, hospitals, and other healthcare providers. Members pay premiums for their selected health and dental plans, and GEHA processes claims and manages benefits. The organization's focus is on delivering comprehensive and affordable benefits tailored to the federal workforce, supported by a large provider network and member services.

Company size
1,001-5,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Festus, MO
Founded
Not listed

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