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Data Engineer (Founding Team)Fabrion • San Francisco, California, United States
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Data Engineer (Founding Team)

Fabrion
  • US
    San Francisco, California, United States
  • US
    San Francisco, California, United States
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About

Data/ETL Engineer (Founding Team) Location: San Francisco Bay Area
Type: Full-Time
Compensation: Competitive salary + early-stage equity
Backed by 8VC, we're building a world-class team to tackle one of the industry’s most critical infrastructure problems.
About the Role We’re building a multi-tenant, AI-native platform where enterprise data becomes actionable through semantic enrichment, intelligent agents, and governed interoperability. At the heart of this architecture lies our Data Fabric — an intelligent, governed layer that turns fragmented and siloed data into a connected ontology ready for model training, vector search, and insight-to-action workflows.
We\u2019re looking for engineers who enjoy hard data problems at scale : messy unstructured data, schema drift, multi-source joins, security models, and AI-ready semantic enrichment. You’ll build the backend systems, data pipelines, connector frameworks, and graph-based knowledge models that fuel agentic applications.
If you\u2019ve worked on streaming unstructured pipelines, built connectors into ugly legacy systems, or mapped knowledge graphs that scale — this role will feel like home.
Responsibilities
Build highly reliable, scalable data ingestion and transformation pipelines across structured, semi-structured, and unstructured data sources
Develop and maintain a connector framework for ingesting from enterprise systems (ERPs, PLMs, CRMs, legacy data stores, email, Excel, docs, etc.)
Design and maintain the data fabric layer — including a knowledge graph (Neo4j or Puppygraph) enriched with ontologies, metadata, and relationships
Normalize and vectorize data for downstream AI/LLM workflows — enabling retrieval-augmented generation (RAG), summarization, and alerting
Create and manage data contracts, access layers, lineage, and governance mechanisms
Build and expose secure APIs for downstream services, agents, and users to query enriched semantic data
Collaborate with ML/LLM teams to feed high-quality enterprise data into model training and tuning pipelines
What We’re Looking For Core Experience:
5+ years building large-scale data infrastructure in production environments
Deep experience with ingestion frameworks (Kafka, Airbyte, Meltano, Fivetran) and data pipeline orchestration (Airflow, Dagster, Prefect)
Comfortable processing unstructured data formats: PDFs, Excel, emails, logs, CSVs, web APIs
Experience working with columnar stores, object storage, and lakehouse formats (Iceberg, Delta, Parquet)
Strong background in knowledge graphs or semantic modeling (e.g. Neo4j, RDF, Gremlin, Puppygraph)
Familiarity with GraphQL, RESTful APIs, and designing developer-friendly data access layers
Experience implementing data governance : RBAC, ABAC, data contracts, lineage, data quality checks
Mindset & Culture Fit:
You\u2019re a system thinker: you want to model the real world, not just process it
Comfortable navigating ambiguous data models and building from scratch
Passionate about enabling AI systems with real-world, messy enterprise data
Pragmatic about scalability, observability, and schema evolution
Value autonomy, high trust, and meaningful ownership over infrastructure
Bonus Skills Prior work with vector DBs (e.g. Weaviate, Qdrant, Pinecone) and embedding pipelines
Experience building or contributing to enterprise connector ecosystems
Knowledge of ontology versioning , graph diffing , or semantic schema alignment
Familiarity with data fabric patterns (e.g. Palantir Ontology, Linked Data, W3C standards)
Familiar with fine-tuning LLMs or enabling RAG pipelines using enterprise knowledge
Experience enforcing data access policy with tools like OPA , Keycloak , Snowflake row-level security
Why This Role Matters Agents are only as smart as the data they operate on. This role builds the foundation — the semantic, governed, connected substrate — that makes autonomous decision-making and agent action possible. From factory ERP records to geopolitical news alerts, the data fabric unifies it all.
If you\u2019re excited to tame complexity, unify chaos, and power intelligent systems with trusted data — we’d love to hear from you.
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  • San Francisco, California, United States

Languages

  • English
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