Senior Data Engineer Remote, Build Data Pipelines

Cortex; New York (NY); On-site; USD 175,000 - 205,000; Full time

Benefits offered by this job

National medical, dental & vision

Unlimited PTO

401k plan

Parental leave

Learning & Development stipend

Perks stipend

Pet Insurance

Job summary

Cortex is seeking a Senior Data Engineer to own our internal data systems, ingest and transform data, and consolidate a stack across Segment, Hevo, BigQuery, and Omni into a single, trustworthy source of truth for reporting. You will lay the foundation for higher-volume data work as we grow.

You will partner closely with GTM operations to ensure AI-driven automation is built on accurate, well-modeled data and own product analytics.

Qualifications

• Bachelor's degree in CS or related field, or equivalent practical experience.
• 4+ years hands-on data engineering experience building and owning production pipelines.
• Proficiency with dbt, a cloud data warehouse (BigQuery or equivalent), and ETL/ELT tooling.
• Strong SQL and Python for pipeline and transformation work.
• Solid data modeling judgment with a focus on data quality, testing, and reliability.
• Bias toward mapping and rationalizing a messy environment before adding to it.
• Strong communication and collaboration skills, including with non-engineering stakeholders.
• Fluent, critical use of AI in day-to-day engineering, reviewing AI output as carefully as a teammate's PR.
• Experience with high-volume/streaming systems (ClickHouse, OpenTelemetry) or CDP/ETL tools (Segment, Hevo) is a plus.
• Previous experience at a startup is a plus.

Responsibilities

• Own data pipelines end-to-end - ingestion, transformation (dbt), warehousing (BigQuery), and delivery into reporting and BI (Omni).
• Audit and map the existing data systems before rebuilding, then consolidate toward a single source of truth.
• Build and maintain dbt models and transformation logic with tests, documentation, and clear contracts.
• Establish data quality, observability, and reliability practices so pipelines are maintained intentionally.
• Own product analytics: instrumentation and event tracking, data models for usage and adoption, and the metrics GTM and product teams rely on.
• Partner with GTM operations to consolidate reporting into a single tool and ensure we have the right data foundations for AI automation and tools.
• Support research for external reports (e.g. Engineering in the Age of AI benchmark report), partnering with marketing to source, validate, and pull the right data.
• Lay the groundwork for high-volume and streaming ingestion (e.g. telemetry / OpenTelemetry) as the product moves that way.

Skills

Data engineering

dbt

BigQuery

Python

SQL

Data modeling

Data quality

Observability

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

ETL/ELT tooling

OpenTelemetry

Segment

Hevo

ClickHouse

Job description

Cortex is seeking a Senior Data Engineer to own our internal data systems, ingest and transform data, and consolidate a stack across Segment, Hevo, BigQuery, and Omni into a single, trustworthy source of truth for reporting. You will lay the foundation for higher-volume data work as we grow.

You will partner closely with GTM operations to ensure AI-driven automation is built on accurate, well-modeled data and own product analytics.