Data Engineer II- Life Sciences

Responsibilities

• Build and maintain the Python and PySpark pipelines behind the CTMS trial data pipeline intake workflows, including scoring and status logic.
• Develop the transformation logic that maps raw trial and customer data to H1's internal data models, handling diverse source formats including CSV, JSON, Parquet, and APIs.
• Write and tune SQL against large datasets to investigate data questions, validate pipeline output, and support analysis that clinical SMEs and customer-facing teams depend on.
• Turn around customer-driven changes quickly, scoping requests as they arrive, shipping changes that hold up under enterprise SLAs, and reworking logic as customer needs shift mid-flight.
• Partner with clinical SMEs to translate domain expertise into concrete data rules, then walk them through the results, explain what the pipeline did and why, and fold their feedback back into the logic.
• Build the data quality checks, validation logic, and reconciliation that let non-engineers trust pipeline output without reading the code.
• Participate in code reviews, maintaining a high bar for quality and adherence to engineering standards.
• Monitor and improve pipeline observability, contributing to alerting and dashboards that surface job health and data anomalies for both the team and internal users.

Requirements

• Working with PySpark or a comparable distributed processing framework on datasets too large for a single machine
• Writing SQL well enough to answer hard questions about data, not just retrieve it
• Working in an operationally-driven environment where reliability and on-time delivery matter as much as new feature work
• 3+ years of experience in software or data engineering, with meaningful Python in your background
• Demonstrated experience building and maintaining production-grade data pipelines in Python
• Hands-on experience with PySpark or a similar distributed data processing framework
• Strong SQL skills, including working with large, messy, multi-source datasets
• Strong understanding of software quality practices: testing, code review, documentation, and CI/CD
• Experience working with cross-functional and non-technical stakeholders
• Familiarity with entity matching or data mastering a plus

ABOUT YOU

You are a data engineer with a strong Python foundation and real distributed-processing experience. You're drawn to high-impact teams where the work is tangible: pipelines running, enterprise customers getting their data on time, clinical data that people make real decisions from. You're comfortable in an environment where recurring production runs and customer SLAs shape day-to-day priorities, and where a customer request can reorder your week. You'd rather sit down with a domain expert and understand why the data looks the way it does than build to a spec handed to you secondhand.

You bring experience

• Building and shipping production data pipelines in Python, with an understanding of what makes them reliable and maintainable under real load
• Working directly with non-engineering partners, subject matter experts, analysts, or customer-facing teams, and communicating clearly about data with people who don't read code
• Holding a high bar in code review and expecting the same from those who review your work
• Identifying data problems early and seeing work through to resolution rather than handing it off

REQUIREMENTS

• Experience with pipeline orchestration tooling (Argo, Airflow, Databricks, dbt, or similar) preferred
• Familiarity with clinical trial data, healthcare data, or another regulated data domain a plus
• Familiarity with AWS services (S3, Lambda, ECS, or similar) a plus

COMPENSATION

• This role pays $110,000 to $135,000 per year, based on experience, in addition to stock options.
• Anticipated role close date: 10/20/2026

H1 OFFERS

• Full suite of health insurance options, in addition to generous paid time off
• Pre-planned company-wide wellness holidays
• Retirement options
• Health & charitable donation stipends

Impactful Business Resource Groups

The opportunity to work with leading biotech and life sciences companies in an innovative industry with a mission to improve healthcare around the globe

H1 is proud to be an equal opportunity employer that celebrates diversity and is committed to creating an inclusive workplace with equal opportunity for all applicants and teammates. Our goal is to recruit the most talented people from a diverse candidate pool regardless of race, color, ancestry, national origin, religion, disability, sex (including pregnancy), age, gender, gender identity, sexual orientation, marital status, veteran status, or any other characteristic protected by law.

H1 is committed to working with and providing access and reasonable accommodation to applicants with mental and/or physical disabilities. If you require an accommodation, please reach out to your recruiter once you've begun the interview process. All requests for accommodations are treated discreetly and confidentially, as practical and permitted by law.