Top Software Test Engineer Jobs in San Francisco, CA

Supports manufacturing and new product introduction for software running on DNA sequencing instruments. Designs and executes functional, integration, system, regression, and exploratory tests; owns software verification activities; troubleshoots software, firmware, hardware, server, cybersecurity, and system issues; performs root-cause analysis; documents defects and results; and collaborates with quality, manufacturing, development, regulatory, supply chain, and systems teams in a regulated environment.

Designs and maintains automated test frameworks and exploratory suites for products, APIs, SDKs, AI models, and data platforms. Develops functional, integration, end-to-end, regression, API, browser, load, and reliability tests; creates datasets, evaluation pipelines, dashboards, and CI/CD release gates. Partners across Engineering, Research, Product, Data, and Infrastructure to validate model behavior, data quality, performance, and production readiness. Documents reproducible defects, supports triage, and communicates risks.

Build and maintain Hardware-in-the-Loop testing systems, write Python automation, integrate test equipment and hardware, and contribute to CI and testing infrastructure. Diagnose failures across software, hardware, and infrastructure while improving automated test reliability, speed, and scalability. The intern will collaborate with software, embedded, and hardware engineers, document testing practices, and gain experience integrating software with real and simulated mission-critical hardware.

Perform manual, exploratory, functional, end-to-end, and automated testing for mobile apps, web platforms, and REST APIs. Build and maintain Playwright and Appium automation, document traceability, manage defects, analyze logs, support release readiness, and collaborate with Quality, Engineering, and Product. Apply AI tools to testing and help validate AI-powered healthcare features in a regulated software environment.

Designs and executes manual software testing for NAVSUP OIS Next Gen applications, including functional, regression, integration, system, accessibility, and user acceptance testing. Creates test plans and cases, validates databases with SQL, documents defects in GitLab, verifies fixes, communicates release readiness, and collaborates with Agile development and product teams. Supports production validation and continuous QA process improvements.

Designs and executes end-to-end manual and automated tests for Oura’s mobile apps, cloud services, wearable devices, data flows, and algorithms. Builds and maintains mobile and API automation frameworks, integrates testing into CI/CD pipelines, validates sensor-driven insights and wireless connectivity, investigates defects, and improves QA processes. The role also owns test strategy, documentation, quality metrics, performance testing, AI-driven testing exploration, and mentorship of junior engineers.

Tests and validates software systems, with emphasis on iOS applications, bug fixes, patches, updates, and business requirements. Collaborates with developers, designers, and project managers to deliver features, maintains organized project files and code, and stays current with programming languages and operating system updates. The description also contains unrelated recruitment, event management, and business development responsibilities.

Senior SDET responsible for building test strategies, developing automation frameworks and tools, leveraging AI to augment testing, writing test plans for functional/compliance use cases, automating high-value tests, participating in requirements analysis, diagnosing issues, and collaborating with product, security, and engineering teams to improve platform quality and reliability.

Design and build software architecture, test infrastructure, and reusable tooling for satellite vehicle integration and hardware validation. Integrate flight and ground software, refine electrical engineering specifications, support testing from proposal through flight, troubleshoot production issues through on-call rotations, and mentor junior engineers. The role involves hands-on lab work across vehicle subsystems and participation in recruiting and hiring.

Design and implement software architecture, test infrastructure, and reusable tooling for aerospace vehicle integration and hardware validation. Integrate flight and ground software, refine electrical engineering specifications, support testing from proposal through flight, troubleshoot production and flight issues, and guide major test campaigns. Mentor junior engineers and support recruiting. The role involves hands-on laboratory work, on-call support, and collaboration across engineering teams for commercial and U.S. Government programs.

Develop and maintain Python-based test automation infrastructure for aerospace electronics manufacturing. Build test stations, hardware-in-the-loop integrations, equipment drivers, backend services, web UIs, database schemas, and CI/CD tooling. Collaborate with software, hardware, and manufacturing teams to automate acceptance procedures and ensure deterministic, FAA-compliant production testing. The role also requires networking, async programming, protocol integration, test strategy development, technical leadership, mentorship, and support for existing manufacturing stations.

Build and maintain automated test frameworks and CI pipelines, automate UI, services, runtimes and browser testing, manage Jenkins jobs, expand automation coverage, work with global console teams, maintain Python automation frameworks, and report and verify defects.

Own the enterprise test automation strategy, scale a Playwright and JavaScript framework, expand coverage across Salesforce, MuleSoft, D365, and reporting systems, and build scalable execution and reporting infrastructure. Design QA standards, metrics, and review processes while developing AI-powered agents with Cursor for performance testing, regression analysis, and defect triage. Partner with engineering, product, business, and AI platform teams to deliver governed, reusable quality tooling.

Designs and implements manual and automated tests across unit, component, integration, and end-to-end levels. Builds scalable UI and API automation frameworks, conducts performance and load testing, creates test reports, investigates regressions, and provides testability feedback. Collaborates with engineering, product management, and UX teams in an agile environment. The role requires Python and JavaScript automation expertise, cloud and container experience, CI/CD familiarity, SQL, and knowledge of microservices.

Develop and scale simulation infrastructure for autonomous vehicle testing and validation across millions of virtual miles. Build metrics, test sets, and automation for KPI measurement, coverage, data quality, and performance. Collaborate with engineering, infrastructure, test, and release teams to resolve system-level issues and improve reliability. Mentor junior engineers and promote test-driven development. The role focuses on autonomous systems simulation, software engineering, data analysis, and large-scale validation.

Lead technical ownership of a global platform for safe change: distributed key-value storage, progressive configuration delivery, testing and health-mediation. Write production code, design systems, review senior proposals, integrate LLMs, and drive cross-team initiatives to improve reliability, rollout safety, and developer productivity.

Develop and maintain automated UI and API tests, test frameworks, and quality engineering processes across platforms and devices. Plan testing strategies, execute functional, integration, regression, and end-to-end tests, investigate automation and CI/CD failures, track defects, and collaborate with engineering and product teams on release readiness and quality improvements.

Designs and improves test automation frameworks, writes production-quality test code, and embeds quality engineering across the software development lifecycle. Responsibilities include unit, integration, end-to-end, performance, security, API, and database testing for distributed systems. Partners with cross-functional teams, participates in code and design reviews, translates requirements into solutions, and mentors junior engineers.

Build and maintain automated UI and API tests using TypeScript and Playwright, contribute to testing frameworks, investigate failures, and establish quality practices across engineering squads. The role includes manual and exploratory testing, API and contract testing, CI/CD quality gates, release criteria, test plans, coverage management, and AI-assisted testing. Collaboration with Engineering, Product, and Design is central to improving testability and enabling continuous delivery.

Lead quality engineering for cloud-based compute microservices by developing automated unit, integration, and end-to-end testing frameworks and pipelines. Create test plans, automate deployments and rollbacks, troubleshoot complex issues, identify root causes, and mentor junior engineers. The role requires deep Python and Pytest expertise, automation tooling experience, Linux performance knowledge, Bash scripting, Docker, and strong networking fundamentals.

Automate testing, deployment, and validation for cloud-native platform services. Develop unit, integration, and end-to-end test frameworks; create test plans; troubleshoot deployment issues; support rollback strategies; collaborate across engineering teams; and write deployment automation scripts. The role requires strong Python, Pytest, Bash, Linux, automation tooling, performance, and modern SDLC knowledge.

Build and maintain shared testing infrastructure, automation frameworks, developer tooling, and AI-assisted test authoring systems. Integrate testing standards into CI/CD, improve build reliability, eliminate flaky tests, and develop test harnesses for AI-powered features. Partner with engineering, Quality Advocates, and SRE teams to improve platform reliability and developer productivity. Evaluate AI testing tools, support organization-wide adoption, mentor engineers, and own systems from architecture through production support.

Build and maintain multi-layer test automation, improve CI/CD release integrity, and develop internal tools that enhance testability and developer experience. Establish quality metrics, dashboards, and observability for product stability and release readiness. Partner across engineering, infrastructure, product, SRE, and quality teams to implement shift-left practices, performance, resilience, security, API, and dependency testing. Drive automation-first quality improvements and promote consistent engineering standards.

Develop, maintain, troubleshoot, and execute automated UI, API, integration, and data tests for healthcare technology platforms. Use Selenium, Playwright, REST APIs, SQL, and CI/CD pipelines to validate software quality. Collaborate with engineers, product owners, and QA analysts in an Agile environment; investigate failures, improve test reliability, document coverage, and learn software engineering and Quality Engineering practices through mentorship.

Develop and run automated test frameworks and embedded firmware to validate radar payloads. Build HIL setups, control lab instruments, analyze performance data, and maintain CI pipelines to ensure hardware-software integration and space-readiness.