AI Data Engineer

Ethereum Technologies; Dallas (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Ethereum Technologies in Dallas seeks a Data Engineer to design and maintain data infrastructure powering AI/ML initiatives, including data pipelines for model training and retrieval-augmented generation (RAG). This role sits at the intersection of data engineering and applied AI, ensuring high-quality, governed data for analytics and AI consumption.

You will collaborate with ML engineers and data scientists to meet data requirements for training and evaluation, while optimizing pipelines for

Qualifications

• Proven experience building data pipelines for AI/ML use cases.
• Strong SQL and Python/Scala programming for pipeline development.
• Experience with structured and unstructured data processing.
• Familiarity with ML lifecycle concepts and data governance.

Responsibilities

• Design and build pipelines to ingest, clean, and transform data for AI/ML use cases.
• Build and maintain vector embedding pipelines and support vector database integration.
• Develop feature stores/pipelines for ML model training and inference.
• Implement data pipelines for RAG architectures, including chunking and metadata tagging.
• Collaborate with ML engineers and data scientists to meet data requirements for model training and evaluation.
• Ensure data lineage, quality, and governance across pipelines feeding AI systems.
• Optimize pipelines for cost and performance (dynamic tables, streaming ingestion).
• Support MLOps/LLMOps workflows — track data used in model training for reproducibility.
• Implement entitlement/access control so AI systems access only authorized data.

Skills

SQL

Python

Scala

Cloud data platform

Airflow

dbt

Embeddings

RAG patterns

Unstructured data

ML lifecycle

Tools

dbt

Snowflake Cortex

Cortex Search

LangChain

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Description:

We're looking for a Data Engineer to build and maintain the data infrastructure powering our AI/ML initiatives — including data pipelines for model training, retrieval-augmented generation (RAG), and production ML systems. This role sits at the intersection of data engineering and applied AI, ensuring high-quality, well-governed data is available for both traditional analytics and AI consumption.

Key Responsibilities:

• Design and build pipelines to ingest, clean, and transform structured and unstructured data (documents, PDFs, transcripts, logs) for AI/ML use cases
• Build and maintain vector embedding pipelines and support vector database integration
• Develop feature stores/pipelines for ML model training and inference
• Implement data pipelines supporting RAG architectures — chunking strategies, embedding refresh cycles, metadata tagging
• Partner with ML engineers/data scientists to understand data requirements for model training and evaluation
• Ensure data lineage, quality, and governance across pipelines feeding AI systems
• Optimize pipelines for cost and performance (e.g., Dynamic Tables, streaming ingestion)
• Support MLOps/LLMOps workflows — versioning datasets, tracking data used in model training for reproducibility and compliance
• Implement entitlement/access control logic so AI systems only access data they're authorized to use

Required Skills/Experience:

• Strong SQL + one of Python/Scala for pipeline development
• Experience with a cloud data platform
• Experience with orchestration tools (Airflow, dbt)
• Understanding of embedding models, vector search, and RAG patterns
• Experience with unstructured data processing
• Familiarity with ML lifecycle concepts

Nice to have:

• Experience with Snowflake Cortex, Cortex Search, or similar in-warehouse AI tooling
• Experience in a regulated industry (financial services) with data entitlement/compliance requirements
• Exposure to LLM application frameworks (LangChain, Llama Index)

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.