Top Senior QA Jobs in St. Louis, MO

Design, implement, and maintain automated test suites validating frontend flows, backend APIs, and on-chain execution. Build deterministic tests for order lifecycle, slippage, fees, and state reconciliation; run tests in local chain/testnet environments; integrate with CI/CD; triage failures and collaborate with engineers to improve testability and ensure high-confidence releases.

Perform QA for OneStream/EPM implementation supporting a DoD client: plan and execute SIT/UAT and regression testing; develop test cases and scripts; validate configurations, integrations, calculations, workflows, and reports; manage defects and traceability; support deployment, go-live, hypercare, and post-production validation.

The QA Engineer will enhance test automation frameworks, ensure smooth deployment of features, and evaluate ClickHouse's functionality while collaborating across teams.

Lead QA strategy and execution for a multi-platform (mobile/PC) free-to-play game. Build and mentor a global QA organization, drive automation and tooling, embed quality across the development lifecycle, define KPIs, and partner with cross-functional leaders to manage risk and improve product quality at scale.

Senior QA Engineer responsible for designing and executing test strategies for Amazon Connect contact centers, building manual and automated Playwright/Cypress/Selenium suites across UI, API and serverless backends, validating migrations and production readiness, running UAT, incident triage, and mentoring junior QA engineers.

The Quality Assurance Manager oversees technical quality across factory operations and field inspections, manages quality reports, and collaborates with teams on quality assurance practices.

Lead QA strategy and execution for ARBI and Athena: audit QA, define test architecture, build automated frontend/API/integration/regression suites, validate AI/LLM behaviors and data workflows, integrate tests into CI/CD, perform performance and reliability testing, and own release readiness, metrics, and QA operating rhythms across the product.

Build and deliver AI-assisted QA curriculum as part-time instructors, authors, or subject-matter experts. Create and review course content, lead workshops, design exercises, advise on AI QA workflows, and support curriculum improvement with hands-on tool experience.

Lead QA automation design and implementation for AI-enabled scoring and orchestration services. Build automated validation strategies (including agentic AI), create mocks, enforce security and engineering standards, drive CI/CD/DevOps testing, participate in Agile ceremonies and peer reviews, troubleshoot production, and collaborate with architects, product, and psychometrics to ensure reliable, high-quality systems for large-scale assessment programs.

The Senior Testing/QA Specialist will design and manage testing strategies, develop testing architecture, execute test plans, and collaborate with developers to improve software quality.

Lead POS QA within a scrum team by defining test strategy, building and maintaining automation (UI, API, integration), expanding regression suites, integrating tests into CI/CD, analyzing distributed-system failures, tracking defects, and mentoring QA engineers to ensure high-quality releases.