Top Software Test Engineer Jobs in San Francisco, CA

As a Software Development Engineer in Test, you'll create and conduct automated tests, resolve technical issues, and collaborate with development teams to ensure software quality.

Develop comprehensive testing strategies and automated test frameworks for UI, API, component, unit, integration, and end-to-end testing. Build performance and load tests, generate test reports, identify regressions, and provide design feedback. Collaborate with engineering, product, and UX teams in an agile environment while supporting AI-driven products, microservices, cloud infrastructure, and CI/CD workflows.

Develop and maintain manual and automated testing for a B2B SaaS web application, APIs, and mobile apps. Responsibilities include designing test cases, building UI and API automation, performing end-to-end, acceptance, exploratory, regression, and functional testing, investigating defects, and improving QA processes throughout the software development lifecycle. The role collaborates with developers, product managers, and stakeholders to ensure product quality and customer-focused releases.

Build and maintain automated tests for a browser-based 3D CAD platform, expanding coverage across CAD workflows, data uploads, and exports. Evolve test infrastructure and CI, improve reliability and execution speed, eliminate flaky tests, and create debugging tools for coding agents. Partner with platform engineers to improve application testability and help teams write durable tests. The role also includes performance regression tracking and root-cause analysis across application code and infrastructure.

Lead QA activities for an IAM program: design and implement QA methodologies, create and run manual and automated tests, perform code/product reviews, triage defects, validate functionality/performance/security, and support CI/CD, UAT, and release validation across Agile teams.

Execute scheduled, ad hoc, and release-milestone software tests; review test cases; report defects in issue-tracking systems; communicate status in standups; and collaborate with software test managers and development teams. The role requires knowledge of QA methodologies, black-box, grey-box, and white-box testing, strong communication and organization, independent and team-based work, and participation in planning and professional meetings.

Develop and maintain automated testing tools and frameworks for complex healthcare software. Create test plans, execute white-box, black-box, UI, API, and performance testing, identify defects and testing gaps, improve CI/CD processes, and collaborate with product managers and developers to support high-quality releases. The role also involves debugging code, participating in demos, and working with distributed teams in a remote environment.

Designs, develops, and maintains complex software test automation frameworks, tools, libraries, and performance tests. Integrates automated testing into CI/CD pipelines, analyzes test results, enforces coding standards, reviews code, troubleshoots issues, and mentors junior engineers. Collaborates cross-functionally to support quality releases and develops reusable testing solutions using modern programming languages, cloud platforms, containerization, API testing, and automation technologies.

Design, develop, and maintain complex test automation frameworks, tools, libraries, and performance tests. Integrate automated testing into CI/CD pipelines, establish coding standards, analyze test results, and drive automation strategies. Collaborate with cross-functional teams, review code, troubleshoot framework issues, and mentor junior testing engineers. The role also supports cloud, containerization, DevSecOps, API, UI, and performance testing initiatives.

Develops production-grade C++ and Python automated tests for distributed cloud and edge systems. Responsibilities include unit, integration, and end-to-end testing; deterministic test harnesses and mocks; C++/Python interoperability validation; Bazel and GitLab CI/CD integration; code coverage enforcement; and debugging complex test failures. The role collaborates closely with software and infrastructure engineers to validate numerical, navigation, and multi-service system logic.

Designs test strategies and scalable automation frameworks for UI, API, integration, and end-to-end testing across PlayStation platforms. Develops automated tests, executes manual and automated testing, investigates defects, analyzes test results, and integrates testing into CI/CD pipelines. Collaborates with engineering and product teams, participates in code reviews, improves quality practices, and reports quality metrics and risks to stakeholders.

Lead quality engineering for a backend-heavy Immigration AI platform. Design test plans and cases, establish test environments, execute manual and automated testing, build custom frameworks and tooling, and test REST, asynchronous, event-driven, and backend services. Mentor engineers, conduct code reviews, identify automation opportunities, apply GenAI and LLMs, perform load and stress testing, and improve testing pipeline scalability, performance, and efficiency.

Design and build automated test fixtures and software (Python, Rust/C) for qualification and production. Drive design-for-testability, perform cross-domain debugging (mechanical, electrical, software), run reliability/qualification rigs, and own failure analysis and production testing to ensure units meet specs.

Lead initiatives that enable production-like system testing across engineering. Build realistic test environments, workload generation and replay, fault-injection tooling, shared testing frameworks, and continuous or release validation. Partner with infrastructure, reliability, release, and product teams to convert incident learnings into durable test coverage. Mentor engineers, influence testing strategy, and improve observability, debuggability, and operational readiness.

Build and maintain scalable integration and end-to-end test automation frameworks, optimize CI pipelines and test execution, improve test stability and reporting, support engineering teams with triage and best practices, write technical specs/ADRs, participate in on-call rotation, and collaborate cross-functionally to evolve the company test strategy.

The Software Test Engineer will design and execute software test procedures for spacecraft Flight Software across integration and environmental tests, ensuring features are testable and validated before launch.

The QA Engineer will manage end-to-end software quality for a wearable robotic device, focusing on automation, testing, and collaboration with engineers across various platforms.

Lead quality efforts for machine learning products by building scalable test automation, validating models, and ensuring reliability of ML services.

Lead quality engineering for PlayStation services by architecting scalable automated test frameworks (UI, API, integration, system), building CI/CD test pipelines, mentoring SDETs, defining test strategy and metrics, analyzing telemetry and production issues, and driving shift-left testing and quality improvements across teams.

Designs and maintains automated testing systems, infrastructure, tooling, and internal developer productivity tools. Partners with DevOps to optimize test execution and reliability within CI/CD pipelines, while advancing testing, observability, and release-confidence practices across engineering. The role requires a systems-oriented approach to building scalable, reliable, and maintainable test solutions in an ambiguous, fast-moving environment.

Lead design and operation of test infrastructure at scale: test orchestration, smart selection, parallel sharding, flaky-test detection, observability, SLOs, and on-call. Define technical strategy, drive cross-team projects, mentor engineers, and reduce test feedback time to accelerate engineering velocity.

Lead enterprise quality engineering strategy and architecture across PlayStation platforms. Design and scale UI, API, integration, hardware, telemetry, portal, and end-to-end automation frameworks; establish CI/CD quality gates and testing standards; drive AI-assisted testing, device-lab orchestration, observability, and flakiness reduction. Partner with cross-functional leaders, investigate systemic quality issues, define quality metrics, influence engineering practices, and mentor SDETs and quality engineers.

Own and architect a distributed test-orchestration platform for build integrity tests; lead a small engineering team; ensure resilience, reliable task scheduling/execution, result collection, and provide APIs/frameworks for cross-team integration across manufacturing and fleet.

Design, develop, and execute test strategies and automation for UI, API, and backend systems. Build and maintain scalable automation frameworks, testing infrastructure, and CI/CD integrations. Collaborate with cross-functional teams, analyze test results, drive defect resolution, and support release readiness while promoting shift-left quality practices.

Develops and maintains automated testing frameworks and CI/CD systems for PlayStation Mobile App features. Responsibilities include reviewing requirements, creating test plans and cases, implementing UI and end-to-end automation, managing Jenkins jobs, maintaining PS5 test devices, tracking defects, supporting deployments, and collaborating with developers and product owners to ensure automated test coverage.