Senior Data Engineer

CNA National; Scottsdale (AZ); On-site; USD 140,000 - 200,000; Full time

Job summary

CNA National seeks a Senior Data Engineer to design, build, and maintain a scalable data platform. You will lead end-to-end data projects, ensure data quality, and partner with teams across operations and analytics.

The role emphasizes hands-on ownership, designing robust pipelines, and mentoring teammates while supporting Tableau-driven reporting and governance initiatives.

Qualifications

• Bachelor’s degree in computer science, IT, or equivalent experience.
• 10+ years of experience in data engineering.
• Advanced SQL with complex joins, subqueries, windowing, CTEs.
• Proficiency in Python for robust pipelines and automation.
• Experience designing Data Warehousing with star schema and SCDs.
• Strong OLTP/3NF understanding and denormalization for performance.
• Experience with unstructured data (JSON, APIs) in enterprise data ecosystems.
• Familiarity with Airflow or Prefect for orchestration.

Responsibilities

• Design, build, and maintain scalable data pipelines for batch and streaming.
• Implement data validation and governance across systems.
• Manage cloud data services (AWS, Snowflake, Databricks).
• Ensure regulatory compliance (PCI-DSS, GDPR, SOX).
• Deliver proofs of concept and prototypes for architecture.
• Collaborate with stakeholders to align data architecture with needs.
• Support reporting with Tableau through well-modeled data.

Skills

SQL

Python

Airflow

Prefect

dbt

Talend

FiveTran

Snowflake

Databricks

AWS

Data Modeling

3NF OLTP

NoSQL Data

Data Lakehouse

Communication

Mentoring

Education

Bachelor's degree in computer science / IT or equivalent

Tools

Tableau

Job description

CNA is seeking a Senior Data Engineer with the technical expertise, architectural insight, and problem-solving skills to design, build, and maintain our modern data platform. The ideal candidate will be a hands-on engineer who can deliver at scale, ensure data quality, and work across teams to support both operational and analytical workloads.

Responsibilities

• Design, build, and maintain scalable data pipelines (ETL/ELT) for both batch and streaming use cases.
• Implement data validation and integrity frameworks, ensuring accuracy, completeness, and reconciliation across systems.
• Administer and optimize cloud-based data services (AWS, Snowflake, Databricks, etc.).
• Ensure compliance with data governance and regulations (PCI-DSS, GDPR, CPRA, SOX, etc.).
• Deliver proof of concepts and lightweight prototypes to validate architectural improvements.
• Collaborate with business units, audit teams, and stakeholders to align data architecture with organizational needs.
• Support reporting and analytics teams by enabling Tableau (or future-state tools) through well-structured data models and governance.
• Seek out new work proactively and mentor other team members.
• Own projects end-to-end and deliver measurable results.
• Diagnose and resolve complex data issues quickly.

Qualifications

• Bachelor’s degree in computer science, Information Technology, or equivalent experience.
• 10+ years of experience in data engineering.
• Mastery of complicated SQL for loading data, including complex joins, subqueries, windowing functions, and common table expressions.
• Advanced proficiency in Python, developing and supporting robust pipelines, frameworks, and automation solutions.
• Proven history designing and managing Data Warehousing solutions including proper loading techniques, star schema modeling, slowly changing dimensions, and aggregate strategies.
• Strong understanding of OLTP modeling (3NF) and how to denormalize for performance or downstream use.
• Production experience with unstructured and semi-structured data (e.g., JSON, MongoDB, APIs) and integrating it into enterprise data ecosystems.
• Practical expertise implementing and optimizing pipeline orchestration with tools such as Airflow or Prefect.
• Experience implementing and optimizing 3rd party transformation tools such as dbt, Talend, or FiveTran.
• Demonstrated success in delivering scalable solutions using cloud-based data platforms like Snowflake or Databricks.
• Applied experience leveraging AWS data services (S3, Glue, Redshift, Lambda, Secrets Manager, etc.) in secure and cost-effective ways.
• Demonstrated ability to ensure compliance with regulatory requirements including PCI-DSS, GDPR, CPRA, CCPA, and SOX.
• Effective communication skills for engaging both technical and non-technical audiences and collaborating with business and audit stakeholders.
• Proven capability mentoring peers, promoting best practices, and contributing to team growth.
• High adaptability to changing requirements, emerging technologies, and competing priorities.
• Nice to have: Hands-on experience with Data Lake and Lakehouse technologies (e.g., Delta Lake, Iceberg, Hudi) for managing large-scale data assets.

This role is critical to our data engineering practice. We are looking for a hands-on leader who can operate in both structured and fast-changing environments while delivering high-quality, scalable solutions.

About CNA National

CNA National (CNAN) offers service contracts, warranties and other protection products to vehicle purchasers through franchised automobile dealerships nationwide. Founded in 1982 and headquartered in Scottsdale, Arizona, we set out to redefine the service contract industry with a commitment to being the best and doing the right thing. More than 40 years later, we remain true to that vision, evolving alongside the auto industry and delivering top-notch products with exceptional customer service.

Our organizational culture thrives on challenge and engagement, providing opportunities for employees to learn, grow, and feel a sense of purpose within our dynamic workplace.

In 2024, CNAN received a MOTOR Top 20 Award from MOTOR Information Systems for our electric vehicle service contract. We have been named a #1 provider 22 times in the Dealers’ Choice Awards. In addition, CNAN was the first and one of only two service contract companies recognized for “Highest Overall Dealer Satisfaction” by J.D. Power and Associates. We are a wholly owned subsidiary of CNA Financial, one of the nation’s oldest and largest commercial insurers with more than $60 billion in assets.