Sr. Data Engineer

• Design, develop, and maintain enterprise-gradeETL pipelinesfor US healthcare data
• Process and transform healthcare data formats includingHL7, CCD, FHIR, and related standards
• Implement ETL workflows usingC#, SQL Server, and Snowflake
• Build and optimize healthcare-focused data models supporting analytics, reporting, and downstream systems
• Ensure data quality, validation, normalization, and consistency across clinical and administrative datasets
• Collaborate with product, clinical, analytics, and compliance teams to translate healthcare requirements into technical solutions
• Optimize SQL and Snowflake workloads for performance, scalability, and cost efficiency
• Support cloud-based data platforms usingAzure and/or AWSservices
• LeveragePythonfor data transformation, automation, and orchestration as needed
• Adhere toHIPAAand healthcare data governance best practices
• Provide technical leadership and mentor junior engineers on ETL and healthcare data standards
• Contribute to continuous improvement initiatives, including modernization and AI-ready data pipelines

• 5–10 years of experience inETL development and data engineering
• Strong hands-on experience withC#
• Advanced expertise inSQL Server(T-SQL, performance tuning, stored procedures)
• Solid experience withSnowflakein production environments
• Strong understanding of data warehousing and ETL best practices
• Experience working withUS healthcare data
• Familiarity with healthcare interoperability standards such asHL7, CCD, and FHIR
• Experience with version control, CI/CD, and production support

• Experience withAzure(ADF, Synapse, Data Lake) and/orAWS(S3, Glue, Redshift)
• Working knowledge ofPythonfor data engineering tasks
• Exposure tohealthcare interoperability tools(interfaces, APIs, message brokers)
• Understanding ofAI/ML conceptsin healthcare analytics (data preparation, feature engineering)
• Knowledge of healthcare coding systems (ICD-10, CPT, LOINC, SNOMED)
• Experience in Agile/Scrum delivery environments

• Strong communication skills with the ability to work across technical and non-technical stakeholders
• Detail-oriented mindset essential for regulated healthcare environments
• Ownership-driven, reliable, and delivery-focused
• Ability to mentor and guide team members in a senior capacity

ELLKAY is committed to fostering a collaborative and high-performance work environment that supports innovation, teamwork, and professional growth.

Most roles are designed to operate from our office locations to encourage effective collaboration and engagement across teams.

Any alternative work arrangements may be considered at the company’s discretion based on role requirements and business needs.

For more information about our company, please visit www.ELLKAY.com .

ELLKAY is a Smoke-Free Workplace.

ELLKAY, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.