Top QA Engineer Jobs in Los Angeles, CA

Executes manual and automated tests for full-stack software, documents defects in Jira, collaborates with developers and product teams, and supports Agile sprint activities. Maintains manual and automated test scripts using Playwright while contributing to QA standards and processes. The role is a three-month temporary engagement with potential conversion and is conducted onsite in Centennial, Colorado, or Long Beach, California.

Build and maintain automated data quality testing for customer data pipelines. Responsibilities include developing dbt, Soda, and SQL checks; validating schemas, loads, sequencing, and downstream reconciliations; detecting anomalies; managing severity levels and customer overrides; reporting quality metrics; and partnering with engineering teams to embed testing into new pipelines. The role requires strong backend testing, SQL, Python, Airflow, and Databricks experience, along with excellent debugging and communication skills.

Designs and maintains test plans and cases for digital and physical products; performs functional, regression, exploratory, smoke, sanity, mobile, web, and API testing. The role supports sprint planning and release readiness, documents and tracks defects, collaborates with Design, Product, and Engineering, identifies quality risks, and helps improve QA processes and standards.

Owns and scales end-to-end quality strategy and test architecture across React frontends, GraphQL APIs, and PostgreSQL services. Designs unit, integration, and end-to-end testing with Vitest, Jest, and Playwright; optimizes CI/CD pipelines; analyzes regressions and incidents; and partners with product and engineering teams to embed quality throughout the development lifecycle. The role also uses analytics, feature flags, session replays, and AI-assisted workflows to improve test coverage and software reliability.

Validate and test blockchain and Web3 products across the development lifecycle: create and run test plans, validate smart contract and wallet interactions, test APIs and web platforms, track and verify bugs, collaborate on releases, and improve automation, reliability, performance, and security.

Design, execute, and analyze functional, regression, integration, system, and performance tests for a web-based observability platform. Create test plans and cases, track defects, collaborate with developers and product, improve QA processes, and potentially build/maintain automated tests. Participate in Agile ceremonies and investigate root causes to ensure timely resolution.

Plan, execute and automate functional, regression and integration tests for mobile (iOS/Android) and backend services. Create and maintain test plans, cases and data; log and track defects; support UAT, performance and stability checks; collaborate with developers, DevOps and architects; integrate automated tests into CI pipelines and validate release readiness across environments and physical devices.

Staff QA Engineer responsible for designing and scaling Playwright end-to-end automation, developing unit and integration testing patterns, integrating tests into CI/CD, validating APIs and data with SQL, and conducting exploratory testing. The role sets QA strategy, improves release reliability, reviews automation, assesses risk, mentors engineers, documents best practices, and partners with engineering and product leadership.

Own end-to-end client support, troubleshoot production issues, monitor cloud environments, respond to incidents, automate operational tasks, and lead postmortems. Develop and execute manual and automated QA tests, maintain regression suites, integrate testing into CI/CD, and validate AI-powered features. Build documentation, collaborate with engineering and product teams, and improve reliability for regulated-industry clients.

Develop and execute comprehensive tests for GIS applications, ArcGIS tools, geospatial workflows, automated validation processes, and web mapping applications. Validate spatial data, geodatabase attributes, Real Property records, business rules, reports, dashboards, and integrations using SQL and scripting. Document defects, investigate root causes, verify fixes, and collaborate with GIS specialists, developers, and analysts. The role requires Esri GIS, Army Real Property and IGI&S knowledge, automated testing experience, and CAC eligibility.

Leads software quality assurance across enterprise applications, including SAP and legacy systems. Develops test strategies, plans, cases, automation, and traceability; leads system, integration, regression, end-to-end, and acceptance testing. Manages defects, evaluates release readiness, monitors quality metrics, supports production validation, and improves testing practices. Partners with technical and business teams, mentors junior QA engineers, and provides guidance on testing standards and quality-focused delivery.

Own quality across daily production deployments by reviewing requirements, directing AI-driven test agents, conducting exploratory testing, investigating defects, managing test environments and data, verifying releases, and improving automated testing processes. Build and maintain UI and API automation with Playwright, use Git and CI/CD tools, validate REST APIs and data with SQL, and collaborate closely with developers and product owners.

Design and maintain automated testing frameworks for web, iOS, and Android fitness applications. Integrate tests into CI/CD pipelines, build API coverage, test GPS and location features through simulation and sensor mocking, and use AI tools to improve QA workflows. Perform targeted exploratory testing, document defects, collaborate cross-functionally, estimate QA work, and advocate for quality throughout development.

Lead QA strategy and scalable test automation for cybersecurity web applications using Playwright and JavaScript. Build and maintain reliable automated testing frameworks, integrate tests into CI/CD pipelines, establish quality gates, diagnose failures, and support security testing. Mentor junior engineers, conduct code reviews, collaborate cross-functionally, and improve testing practices, coverage, reliability, and release quality across multiple products.

Work as an embedded QA automation engineer to design, build, and maintain end-to-end and API test suites, integrate tests into CI/CD, run performance/load tests against a NestJS monolith, manage test data, and validate AI agent behavior and integrations across OMS/WMS/catalog workflows.

Design, develop, and execute manual and automated tests for front-end, back-end, APIs, and large-scale services. Build and maintain automated test suites and frameworks (Java, JUnit, Selenium, TestNG), analyze logs, report results, and collaborate with stakeholders; ensure test coverage across devices and drive test strategy and sign-off.

Perform manual and automated testing for lending applications and services. Develop and maintain test automation, write functional, regression, and API test cases, participate in test planning and defect triage, and track issues through resolution. Collaborate with internal and external teams to ensure reliable, scalable, and performant software while contributing to a quality-focused engineering culture.

Drive quality assurance for web features from technical handoff through production release. Responsibilities include test planning, test case creation, functional and exploratory testing, regression, UI/UX, cross-browser, responsive, API, and end-to-end testing. Support releases through build validation and monitoring, document and review tests, collaborate with product and engineering teams, improve QA metrics, and optionally contribute to test automation.

Own quality across Decile Hub and Start Fund by anticipating release issues, building AI-agent-driven regression and exploratory testing systems, maintaining test plans and release checks, and managing bug triage. The role also focuses on customer onboarding, login, identity verification, document signing, and capital workflows. The QA Engineer partners with engineering, product, and customer success to turn customer feedback into comprehensive test coverage.

Manual QA engineer responsible for testing web and mobile booking flows across admin, reservation, website/iFrame, and mobile app. Create and maintain test cases and documentation, perform functional, regression, exploratory, and UAT testing, review requirements during grooming, track defects, and collaborate with developers, designers, PMs, and QA to own features end-to-end.

Build and lead quality engineering for a multi-tenant AI platform. Responsibilities include creating API, UI, backend, performance, security, and database automation; integrating tests into CI/CD; validating cloud and Kubernetes deployments; ensuring tenant isolation and compliance evidence; defining QA standards and release processes; mentoring engineers; and communicating quality risks. Preferred experience includes testing AI/LLM applications, financial systems, observability, chaos engineering, and startup environments.

Designs, executes, and debugs manual and automated tests for software products. Reviews requirements, develops test plans and scenarios, performs regression and exploratory testing, documents defects, verifies fixes, and supports successful releases. Coordinates testing across development teams, maintains bug backlogs, and recommends improvements to testing processes, tools, and training. Uses SQL Server Management Studio and SQL queries, with ERP application testing experience preferred.

Own electrical testing and quality assurance for boards, assemblies, and buoy systems. Troubleshoot failures, develop test procedures, track quality trends, and collaborate with design, manufacturing, and technician teams on root-cause analysis. Support harness documentation, future PCBA design, and custom hardware integrations. The role is intended for an early-career electrical engineer with hands-on project experience, schematic-reading ability, and familiarity with laboratory equipment.

Leads QA automation initiatives by developing and maintaining automated functional, regression, API, and integration test suites for Guidewire software and mobile applications. Improves CI/CD pipelines, performs root cause analysis, drives quality improvements, collaborates with developers and product owners, and mentors junior QA engineers.

Test mobile features across iOS and Android, perform regression testing, and build automated synthetic tests for voice calls and SMS. Develop test plans for new and cross-team initiatives, track bugs and quality trends, and provide data-driven recommendations. Collaborate closely with engineering, product, and design teams to maintain quality while increasing release velocity.