Data Scientist, AI Data Foundations
Job in
Los Angeles, Los Angeles County, California, 90079, USA
Listed on 2026-07-13
Listing for:
NextDeavor
Full Time
position Listed on 2026-07-13
Job specializations:
-
IT/Tech
AI Engineer (Applied/Software), Machine Learning/ ML Engineer
Job Description & How to Apply Below
Become a Key Player as a Data Scientist, AI Data Foundations
You will design and build the curated data structures that AI and ML applications consume, enabling higher-quality model training and inference. You will partner with model builders, product, risk, and growth stakeholders to surface actionable insights and ship production-ready vector, feature, and graph data assets. This is a Remote role.
Here's How You'll Make an Impact on the Team- Build and maintain vector stores for RAG, including embedding pipelines, chunking strategies, indexing, and refresh patterns.
- Own the feature store: design, build, and operate feature definitions, freshness SLAs, lineage, and point-in-time correctness for offline/online use.
- Design and implement graph data structures to model relationships across applicants, applications, products, lenders, decisions, and outcomes.
- Lead data discovery: profile lending, deposit, and behavioral datasets to identify trends, segments, anomalies, and model drivers; produce actionable hypotheses for stakeholders.
- Engineer curated, AI-ready datasets with appropriate quality checks, documentation, and governance for downstream model builders and analysts.
- Define and run evaluation frameworks for RAG retrieval quality, feature drift, embedding quality, and graph completeness; iterate on metrics.
- Partner closely with ML engineers and applied scientists to ensure data assets accelerate model development and serving workflows.
- Champion responsible data use by collaborating with governance, security, and compliance teams to ensure data classification, consent, and regulatory boundaries are respected.
- Communicate findings via write-ups, notebooks, dashboards, and short presentations for technical and non‑technical audiences.
- 4–7 years of experience in data science, ML engineering, or applied data roles, with significant time building data assets consumed by models or applications.
- Hands‑on experience designing and operating vector stores for RAG or semantic search (embedding generation, chunking, indexing, retrieval evaluation).
- Experience building or operating a feature store (e.g., Databricks Feature Store, Feast, or custom), including offline training and online serving patterns and point‑in‑time correctness.
- Experience modeling and building graph data structures and writing graph queries (Neo4j, Tiger Graph, Cosmos DB Gremlin, or similar).
- Strong proficiency in Python (pandas, Num Py, scikit‑learn, PySpark) and SQL; comfortable using Databricks notebooks and jobs.
- Practical experience with embedding models and LLM tooling (Hugging Face, OpenAI/Azure OpenAI APIs, Lang Chain or similar) in production or near‑production contexts.
- Demonstrated data discovery skills: profiling messy datasets, surfacing patterns, validating findings statistically, and explaining results clearly.
- Solid grounding in classical ML concepts (supervised vs. unsupervised learning, train/test discipline, leakage, evaluation metrics).
- Strong written and verbal communication skills for technical and business audiences.
- Experience in SaaS or Fin Tech, especially with lending, deposit, credit, fraud, or KYC/AML data.
- Familiarity with Databricks‑native AI/ML tooling:
Databricks Vector Search, Databricks Feature Store, MLflow, Unity Catalog. - Experience with open‑source vector DBs (pgvector, Pinecone, Weaviate, Chroma, FAISS) and strong opinions on trade‑offs.
- Experience with Microsoft Azure data and AI services (Azure OpenAI, Azure AI Search, ADLS Gen2).
- Experience evaluating RAG systems end‑to‑end (recall@k, faithfulness, answer quality, hallucination measurement).
- Exposure to graph algorithms (community detection, link prediction, centrality) applied to business problems.
- Bachelor's or Master's in CS, Statistics, Mathematics, Engineering, or related quantitative field, or equivalent experience.
$114,000 - $175,000/year
Ready to Make Your Mark?This role may fill quickly. Submit your resume to be considered.
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