Senior QA Engineer – Healthcare APIs (FHIR / HL7) REMOTE

Senior QA Engineer – Healthcare APIs (FHIR, Postman, SQL)

About the Opportunity

We are seeking a Senior QA Engineer with strong healthcare interoperability experience to support the testing and delivery of healthcare API solutions.

This is a hands-on role combining API testing, FHIR data validation, SQL-based reconciliation, and end-to-end quality assurance . You will work directly with external customers to validate integrations, troubleshoot issues, and ensure healthcare data is accurately processed and exchanged across systems.

The ideal candidate brings a strong QA foundation, technical troubleshooting skills, and experience working with healthcare APIs and FHIR standards. We're looking for someone who can independently investigate issues, collaborate with technical teams, and adapt to a fast-paced, evolving environment.

Key Responsibilities

Healthcare API Testing & Validation

• Perform functional, integration, and regression testing of healthcare APIs, including RESTful APIs and FHIR-based integrations.
• Validate FHIR resources, JSON payloads, API responses, and data mappings.
• Test CMS interoperability workflows, including Patient Access, Provider Access, Payer-to-Payer, Provider Directory, and Prior Authorization APIs.
• Support testing of prior authorization workflows involving CRD, DTR, and PAS.

Data Validation & Reconciliation

• Compare source data against ingested FHIR resources to ensure accuracy, completeness, and consistency.
• Identify missing records, duplicates, mapping errors, sequencing issues, and data discrepancies.
• Use SQL queries and other validation techniques to investigate data quality issues.
• Collaborate with data modelling and development teams to troubleshoot and resolve discrepancies.

End-to-End Quality Assurance

• Develop and execute comprehensive test plans, test cases, and testing scenarios.
• Perform manual and automated API testing using Postman and existing testing frameworks.
• Document defects, investigate root causes, validate fixes, and conduct regression testing.
• Support customer User Acceptance Testing (UAT) and ensure solutions meet business and technical requirements.

Customer Collaboration & Technical Support

• Work directly with external customers to understand testing requirements and validate integration workflows.
• Present test plans, review results, and collaborate on issue resolution.
• Provide technical testing guidance, API documentation, and Postman collections to support customer-led testing.
• Partner with development, implementation, and customer teams to ensure successful solution delivery.

Required Qualifications

• Strong professional experience in software quality assurance , including functional, integration, and API testing.
• Hands-on experience with healthcare interoperability standards, particularly HL7 FHIR .
• Proficiency in REST APIs, JSON, Postman, and SQL .
• Experience validating data ingestion, performing data reconciliation, and troubleshooting integration issues.
• Programming or scripting experience with Java, Python, or similar languages .
• Ability to independently develop test cases, execute tests, investigate failures, and document defects.
• Strong analytical, problem-solving, and technical troubleshooting skills.
• Experience working directly with external customers or client-facing technical teams.
• Excellent communication skills and the ability to explain technical issues to both technical and nontechnical stakeholders.

Preferred Qualifications

• Experience with CMS interoperability requirements and payer APIs .
• Knowledge of CMS Patient Access, Provider Access, Payer-to-Payer, and Provider Directory APIs.
• Familiarity with prior authorization workflows (CRD, DTR, PAS) .
• Experience with API test automation frameworks and automated regression testing.
• Previous experience in healthcare technology, health IT, or healthcare SaaS environments.
• Experience working in startups or smaller, fast-moving technology organizations.

What Makes Someone Successful in This Role?

We're looking for a QA professional who enjoys digging into complex technical issues and takes ownership of testing from planning through resolution.

You should be comfortable working independently, collaborating directly with customers, and navigating changing requirements. This is an excellent opportunity for someone who enjoys a combination of hands-on technical testing, healthcare interoperability, and customer engagement.

If you have a strong QA background, hands-on FHIR/API testing experience, and enjoy solving complex healthcare integration challenges, we'd love to connect!