Sr Data Scientist Hybrid role

Zapcom Group • Long Beach, CA

21h • Hybrid

About The Position

The Senior Data Scientist will develop and support production-grade data science and generative AI solutions. The role focuses on large language models, retrieval-augmented generation (RAG), agentic workflows, LLM evaluation and observability, and secure use of cloud LLM platforms. The position is hybrid and located in San Francisco, California.

Requirements

• 10+ years of experience as a Data Scientist.
• Strong Python skills with production experience.
• Experience with generative AI and large language models (LLMs).
• Experience with RAG pipelines and retrieval strategies.
• Experience with prompt engineering, function calling, and prompt versioning.
• Experience with LangChain, LlamaIndex, or equivalent.
• Experience with agentic workflows and tool orchestration.
• Experience with LLM evaluation, including ground truth, accuracy, hallucination measurement, faithfulness, and grounding.
• Experience with observability for quality, latency, cost, and drift.
• Experience with cloud LLM platforms such as Azure OpenAI, AWS Bedrock, or Vertex AI.
• Knowledge of security and privacy practices, including PII handling and RBAC.

Nice To Haves

• Experience with Airflow or Dagster workflow orchestration.
• Machine learning and data science fundamentals.
• Experience with human-reviewed LLM-as-judge evaluation.
• Experience with Jira and Confluence.

Responsibilities

• Build and support production applications using Python and generative AI/large language models.
• Develop RAG pipelines and retrieval strategies.
• Apply prompt engineering, function calling, and prompt versioning.
• Build agentic workflows and orchestrate tools using LangChain, LlamaIndex, or equivalent technologies.
• Evaluate LLM outputs for accuracy, hallucinations, faithfulness, and grounding using ground truth.
• Monitor LLM quality, latency, cost, and drift.
• Address security and privacy needs, including PII handling and role-based access control (RBAC).

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed