Quality Assurance Engineer

Paysign is seeking a QA Engineer to own the quality of our payment processing and healthcare platform releases through a combination of manual testing and test automation. This role builds and executes test plans across web, mobile, API, and data/back-end layers, integrates automated checks into CI/CD pipelines, and partners with developers, data engineers, and product stakeholders to catch defects before they reach production. The position operates within a Cardholder Data Environment (CDE) subject to PCI-DSS requirements, so test data handling, environment segregation, and audit-evidence practices are integral to the role. Key Responsibility Areas Test Planning & Manual QAAnalyze requirements, user stories, and acceptance criteria to design comprehensive test plans, test cases, and test data Execute manual functional, regression, exploratory, and UAT-support testing across web, mobile, and back-end systems Validate business logic for payment, cardholder, and copay/healthcare workflows including edge cases and negative scenarios Verify fixes and perform root-cause-aware retesting; maintain traceability between requirements, tests, and defects Test Automation (API / UI / Regression)Build and maintain automated test suites for APIs (REST) and UI using frameworks such as Playwright, Cypress, Selenium, Postman/Newman, or equivalent Grow and maintain a reliable regression suite, keeping tests deterministic, well-factored, and low-maintenance Implement data-driven and contract tests that validate request/response schemas between services Manage test data setup/teardown and environment configuration for repeatable automated runs Data & Back-End Testing Write SQL to validate data correctness across MariaDB/MySQL and analytics sources (Redshift/Athena), including reconciliation and transformation checks Test ETL/ELT pipeline outputs, file loaders, and batch jobs for completeness, accuracy, and idempotency Validate reports and dashboards (e.g., Tableau) against source-of-truth data Release Testing & CI/CD Integration Integrate automated tests into Git Lab CI/CD pipelines and gate deployments on test results Perform smoke and sanity testing across environments (dev, test, stage, prod) as part of release promotion Coordinate release/regression cycles with developers and Dev Ops, and support rollback verification Compliance & CDE Testing Ensure test data in non-production environments contains no real cardholder or PHI data; use masked, tokenized, or synthetic data per PCI-DSS and CDE rules Support security, penetration, and access-control testing efforts and capture audit evidence for PCI-DSS and SOC 2 Follow CDE change-management and separation-of-duties controls in all testing and sign-off activities Defect Management & Reporting Log, prioritize, and track defects in Jira with clear reproduction steps, severity, and expected vs. actual results Report test coverage, pass/fail trends, and release-readiness status to engineering and stakeholders Contribute to continuous improvement of QA processes, standards, and test documentation