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Member of Technical Staff - Engineering Lead, Data Ingestion

San Francisco, CA💼 Full-time🗓 2026-07-21 → 2026-09-26

Core

Lead the Data Ingestion team building the machinery to turn the open web and licensed corpora into well-structured, versioned, auditable datasets for pre-training frontier AI models.

Role type

Engineering Lead, Data Ingestion (hands-on IC)

Builds

Web crawl infrastructure, data ingestion pipelines, and data lakes for training corpora

Domain

AI/ML pre-training data infrastructure

Deliverable

production ML models

Required skills

team building and mentoring, web-scale data acquisition, distributed processing, data orchestration, data lake architecture, LLM training intuition, cross-functional partnership

Preferred skills

experience scaling teams quickly, deep expertise in specific ingestion sub-domains (crawling/extraction/storage)

Technologies

Ray, Beam, Spark, Airflow, Prefect, Parquet, JSONL, WARC, object stores

Responsibilities

Build and mentor a high-performing team of data ingestion engineers; guide technical and architectural decisions across crawling, extraction, and storage; stay hands-on to make targeted contributions; manage day-to-day execution of data acquisition campaigns; partner with research teams to tie ingestion decisions to model impact; onboard new data sources within legal constraints

Seniority

Senior, hands-on IC with leadership responsibilities

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