Senior Data Engineer; Part Time

Position: Senior Data Engineer (Part Time) Carina is a nonprofit technology organization founded in 2016 that operates an online home care matching platform. We connect individuals who need publicly funded home care services, including Medicaid, with home care workers seeking meaningful work and good jobs. We work closely with state and local governments, labor unions, training funds, and private employers. Since our founding, Carina has successfully facilitated thousands of matches, resulting in more than 5 million hours of home care being delivered. Carina has been recognized as an MIT Solver in the care economy, a Black & Brown Innovator honoree by MIT Solve, and an honoree on Care Guild’s Care at Scale List, highlighting our innovative approach to strengthening the care workforce and expanding access to care. Join an inclusive, diverse, and dedicated team in a warm, caring environment with less than 10% turnover annually. We offer a competitive salary, excellent benefits, and a strong commitment to work-life balance. Location: Hybrid work Headquartered in Downtown Seattle, remote work possible from CA, OR and WA. Work Schedule: Our typical business hours are 8:30-5:00 Monday-Friday. Travel Requirements: Up to 10% Category: Part-Time, FLSA Non-Exempt, Regular Physical Requirements: Must be able to perform tasks that may require prolonged periods of sitting or standing, with or without reasonable accommodation. Position Summary: We are seeking a detail-oriented and collaborative Senior Data Engineer to join our growing technology team on a part-time basis. This role is ideal for someone who enjoys solving data challenges, building efficient systems, and supporting a mission-driven organization. As a Senior Data Engineer at Carina, you will design, implement, and maintain the data infrastructure that powers our web-based marketplace connecting certified in-home care providers with Medicaid-eligible care seekers. You will work primarily with Postgre SQL on AWS RDS, helping ensure the quality, integrity, and security of data across applications, analytics, and partner integrations. You will collaborate closely with software engineers, data analysts, and product teams to deliver reliable, well-structured data systems that enable meaningful insights and informed decision-making. This is an opportunity to make a direct impact on how Carina improves access to care for families and caregivers across the state. You Will: Design & Development (DBE)

• Design, build, and maintain scalable data solutions and pipelines to support application and business needs;
• Develop and optimize data models and schemas within AWS RDS (Postgre

SQL) for transactional and analytical use cases;

• Create and maintain data architecture documentation including ERDs, data dictionaries, and source-to-target mappings across business units;
• Implement and maintain ETL and Reverse ETL processes for ingestion, transformation, and distribution of data across internal and external systems;
• Ensure data security and compliance for confidential PII and PHI in accordance with HIPAA, internal governance standards, and AWS security best practices;
• Support development teams with data access design through views, APIs, and performance-optimized SQL.

Administration (DBA)

• Monitor database performance, identify bottlenecks, and apply indexing, partitioning, and query tuning strategies;
• Manage schema versioning, migrations, and change control in collaboration with application engineers;
• Maintain database reliability through regular backups, restores, and performance audits in AWS RDS;
• Implement and enforce data governance policies, access controls, and user permissions;
• Analyze query execution plans and develop indexing strategies for optimal read/write performance.

Data Management & Analytics

• Develop and maintain data validation and quality checks to ensure integrity across systems;
• Collaborate with internal stakeholders to support reporting, ad-hoc analysis, and BI integrations;
• Create and manage derived tables, materialized views, and summary datasets for analytics and partner reporting;
• Assist in data migrations, version upgrades, and integration efforts as Carina expands to new markets and data domains.
• Partner with software engineers, data analysts, and product managers to translate feature requirements into scalable data solutions;
• Support internal stakeholders by providing SQL queries, datasets, and insights that inform business decisions;
• Collaborate with external partners and vendors to integrate, transform, and exchange data securely and reliably;
• Communicate complex technical concepts clearly to both technical and non-technical audiences.
• Stay current with AWS data services, Postgre

SQL advancements, and emerging data engineering practices;

• Propose and implement process and tooling improvements that enhance data reliability and developer productivity;
• Contribute to building and documenting Carina’s data engineering standards, code review practices, and infrastructure-as-code patterns;
• Champion a data-first culture by advocating for…

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