Top Senior Test Engineer Jobs in San Francisco, CA

Lead comprehensive manual and automated testing for complex software projects. Develop test strategies, plans, cases, and automation; analyze defects and testing metrics; support API, web, and mobile application testing; facilitate UAT; collaborate with engineering, product, and business teams; drive quality improvements; evaluate testing tools; and mentor junior and mid-level test engineers.

Develops and executes electrical verification and validation testing for implantable and wearable neurotechnology devices. Designs test methods, protocols, fixtures, interface boards, and automated test systems; performs laboratory characterization, hardware debugging, failure analysis, and root-cause investigations. Supports prototype development, regulatory submissions, product reliability, and design improvements while collaborating with hardware, firmware, robotics, quality, and regulatory teams. Mentors junior engineers and helps define subsystem test strategy.

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.

Designs and owns end-to-end automated testing across UI, APIs, back-end services, ML pipelines, and clinical workflows for regulated SaMD products. Builds smoke, regression, visual, post-deployment, and integration tests using Selenium and Playwright; validates tools under medical-device QMS requirements; supports CI/CD, audits, CAPAs, traceability, defect resolution, and regulatory submissions. Coordinates offshore contractors, mentors engineers, and collaborates with engineering, product, and RA/QA teams.

Develop and execute firmware design verification tests for commercial medical devices and clinical studies. Build automated regression infrastructure, create test tools and protocols, debug embedded firmware, add test hooks, and validate stimulation waveforms, BLE, OTA-DFU, sensors, and logging. Support requirements, risk analyses, design reviews, DHF deliverables, formal DVT, root-cause analysis, and regulated medical device development.

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.

Own end-to-end electrical test development for novel micromachine devices, including test strategy, precision measurement, instrumentation, PCB design, firmware, mechanical fixtures, and production integration. Develop error budgets, validate data quality, document systems, and improve reliability and throughput while balancing accuracy, cost, scalability, and speed. Collaborate with device, manufacturing, and product teams to translate ambiguous requirements into measurable specifications and robust test systems.

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.

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.

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.

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.

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.

Performs software integration, verification, validation, interoperability, regression, data migration, and exploratory testing for VA healthcare systems. Analyzes requirements, creates traceable test cases and plans, executes tests across distributed applications, validates databases and web services, manages defects, and prepares status, execution, and analysis reports. The role requires expertise in healthcare IT, SOA, SOAP/REST, FHIR, HL7, test management tools, and collaboration with technical teams and stakeholders.

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.

Develop and implement test plans for coherent optical communication products, analyze transceiver performance, define testability requirements, validate platforms, support fault isolation, and improve manufacturing test yield and cycle times. The role requires collaboration with development and manufacturing teams, statistical modeling, SQL-based data analysis, and familiarity with optics and test technologies.

Develop software, hardware, test plans, instrumentation, and automated calibration sequences for coherent optical pluggable products. Collaborate with product, firmware, and DSP engineering teams to characterize optical transceivers, improve product performance, and implement testing requirements. The role requires optical communications expertise, test and measurement experience, scalable object-oriented software development, and hands-on optical and electrical equipment experience.

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.

Own systems requirements, architecture, integration, verification, reliability analysis, and failure resolution for autonomous flying robots. Lead system bring-up, performance testing, telemetry and field-data analysis, risk assessments, test infrastructure, and cross-functional issue triage across mechanical, electrical, embedded, and autonomy teams. Establish technical standards and independently solve ambiguous, multidisciplinary reliability problems.

The Senior Test Engineer designs and operates complex mechanical and electrical systems for testing jet engines, ensuring quality and performance metrics are met and improving test capabilities.

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.

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.

Lead quality strategy and testing for the iOS Games SDK. Design and implement automated tests, build supporting tools and infrastructure, debug SDK issues, perform manual testing for hard-to-automate features, create test games and samples, and analyze operational data to improve test stability and developer experience.

Leads automated testing for VA health IT applications using Eggplant, including test strategy, script and framework development, regression testing, defect management, requirements analysis, and test reporting. Collaborates with VA, Oracle Health, and project stakeholders to validate clinical software workflows and system requirements. Requires expertise in clinical software testing, Oracle Health Millennium, healthcare workflows, and the software testing lifecycle, along with U.S. citizenship and successful government background screening.

Lead end-to-end mechanical design, 3D CAD modeling, structural and thermal analysis, tolerance analysis, and system integration for complex fusion hardware. Translate physics requirements into robust components, apply DFM/DFA principles, prepare GD&T drawings and design reviews, and provide cross-functional technical leadership across physics, systems engineering, and manufacturing teams.

Performs accessibility, functional, regression, cross-browser, responsive, and workflow testing for an enterprise CMS. Documents defects, validates fixes, maintains test plans and scripts, supports automation, and participates in Agile release-readiness activities. Ensures CMS templates, pages, workflows, authentication, search, and rendering meet quality, WCAG, and Section 508 requirements. Requires an active Secret clearance, technical bachelor’s degree, 10+ years of testing experience, and WCAG or Section 508 certification.