Top Senior QA Jobs in St. Louis, MO

Design, build, and execute automated tests for native mobile and WebView user journeys, APIs, and integrations. Perform performance and reliability testing for critical APIs and transactions, run tests on cloud device farms, analyze failures across devices/OS versions, participate in sprint planning, test design, defect triage, and collaborate with developers to resolve quality issues early.

Join DemandPDX as a Senior QA Engineer for Salesforce Commerce Cloud. Responsibilities include testing SFCC implementations, creating test plans, executing manual tests, and ensuring quality before updates are deployed.

The Principal Engineer in QA Manual will lead initiatives in quality assurance, leveraging extensive IT experience and offering strategic insights within a collaborative and non-hierarchical environment.

The Associate Staff Engineer will lead automation testing efforts utilizing various tools and frameworks while mentoring teammates and implementing agile practices.

Lead QA automation efforts for enterprise applications by defining QA strategy, designing Java/Selenium/Cucumber automation frameworks, integrating tests into CI/CD pipelines on AWS, mentoring QA engineers, managing defect lifecycle, and collaborating with development and DevOps to ensure comprehensive functional, regression, API, and end-to-end testing.

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.

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.

Develop, automate, and execute tests for React UI, NextJS middleware, and C# APIs. Build test automation across business domains, triage and prioritize work, mentor teammates, and collaborate with internal and external teams to ensure reliable, performant, and scalable Online Banking services.

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.