Top Software Test Engineer Jobs in San Francisco, CA

Lead development of automation frameworks, tools, and web-apps to streamline platform safety clearance and system-level validation (HIL/SIL). Build dashboards, execute and debug automated verification tests, and propose process improvements.

Design, develop, and deploy automation-centric test software and assets to validate avionics, sensors, and assemblies from prototype through production. Own test campaigns, coordinate cross-functional teams and vendors, triage field failures, root-cause issues, and build visualization and data-acquisition tools to streamline manufacturing and safety-critical validation.

The Staff SDET will design and implement automated test frameworks using TypeScript, collaborate with developers, and enhance testing processes within CI/CD pipelines.

Build and maintain HIL test infrastructure and large-scale automated validation tools integrating real aircraft hardware with simulation. Support thousands of flight tests daily by writing test software, drivers, and interfaces for embedded and Linux systems, improving test reliability, debugging cross-stack failures, and collaborating with avionics, autonomy, and systems teams.

Lead and build software infrastructure and automation for robot testing and evaluation. Develop scripts, tools, and workflows to run repeatable tests, collect and analyze data, improve reliability, and coordinate cross-functional test execution. Set technical direction, prioritize work, unblock the team, and grow testing infrastructure and personnel for scaled deployments.

Develop and maintain Python-based automated production test infrastructure and hardware abstraction layers. Build modular, fault-tolerant test workflows, optimize high-volume data pipelines to central databases, triage test failures, and write unit tests and mocks to validate code before deploying to production lines.

The Software Test Engineer will design, implement, and maintain test frameworks for back-end services, ensuring product quality through test case creation and automation, and collaborating with cross-functional teams.

Build, maintain, and scale hardware-in-the-loop (HIL) systems and associated CI infrastructure. Integrate test equipment and instrumentation, improve HIL testing practices, and ensure documentation, automation, and security across the deployment lifecycle.

Owns test automation and quality efforts for major product areas, including architecting automation frameworks, developing API, UI, and integration tests, and integrating testing into CI/CD pipelines. Leads test strategy, risk analysis, debugging, quality improvements, and release planning. Mentors junior SDETs, reviews test code, analyzes coverage, maintains quality metrics, and drives cross-functional adoption of testing best practices.

Design and implement automated tests, frameworks, and fixtures for embedded hardware and software. Execute regression, performance, stress, and reliability tests. Build and maintain R&D and production test environments, collaborate to debug firmware and hardware, define testability in design reviews, support manufacturing partners, and enable customers onsite (10-20% travel).

Lead quality engineering initiatives by designing, building, and maintaining automated test frameworks and tools for web and native iOS apps. Perform functional, integration, regression, accessibility, API, security, and load testing. Integrate tests into CI/CD, collaborate with stakeholders, and manage test cases and plans using TestRail and JIRA.

Lead development of automated API, UI, and end-to-end tests for a real-time trading platform. Extend AI-assisted test generation, build scalable CI/CD test frameworks for order lifecycles and market-data streams, reduce flakiness, triage failures, mentor engineers, and drive quality and testability across the product.

The Staff Software Engineer in Test will design and maintain automated test frameworks for Ouster's lidar software, ensuring quality and performance through CI/CD integration and cross-functional collaboration.

Lead quality efforts across backend services, APIs, and customer-facing apps. Design and implement automated test frameworks, build custom tooling and load testing solutions, improve testing pipeline scalability, mentor engineers, and apply GenAI/LLMs to testing and test-generation challenges.

Design, implement, and maintain automated and manual tests across unit, component, integration, and end-to-end levels. Build scalable test frameworks, automate UI and API tests, run performance/load tests, produce test reports, report regressions, and collaborate with agile teams to influence design and ensure product testability and scalability.

Design and implement test software and high-level architecture for vehicle integration and production testing. Develop automated test systems and drivers for ground support equipment, validate flight hardware with electrical engineers, implement ground control and telemetry software, support development through flight, and assist in hiring.

Lead QA for end-to-end system and user workflows by performing manual and automated testing, building and maintaining automation frameworks, integrating tests into CI/CD, validating integrations and distributed systems, tracking defects, supporting release and regression validation, and improving testing strategy and quality metrics in Agile teams.

Lead design and maintenance of automated test frameworks and suites for Salesforce applications. Validate end-to-end workflows, Apex logic, LWC components, and API integrations. Integrate tests into CI/CD, track defects, create test plans and data strategies, and collaborate with Product, Engineering, and DevOps within Agile processes.

Lead technical strategy and execution for automated testing: design scalable frameworks, stabilize CI pipelines, build realistic test environments, reduce flakiness, guide triage and root-cause analysis, mentor engineers, and embed quality practices across product teams to enable frequent, reliable releases.

Design, build, and test software for spacecraft and ground systems across the full stack. Develop flight and real-time control software, simulation and hardware-in-the-loop testing frameworks, integrate with hardware teams, support system bring-up and on-orbit operations, and create tooling for automation and mission operations in resource-constrained, high-reliability environments.

Lead design, deployment, and sustainment of SIL/HIL/EOLT test systems for long-range drones. Build orchestration software, automation, data capture, and dashboards; integrate with embedded hardware and instrumentation; drive root-cause analyses, CI validation gates, and production readiness. Support on-call rotations and field/manufacturing installations, targeting measurable improvements in test coverage, cycle time, and defect escape rates.

Design and implement automated test frameworks and data validation utilities for enterprise data platforms. Validate data transformations, pipelines, lineage, and performance across Databricks, Snowflake, Spark, Hadoop and cloud environments. Integrate tests into CI/CD, perform white-box and performance testing, investigate production defects, and collaborate with Data Engineering, Analytics, and business stakeholders to ensure P&C insurance data quality and regulatory readiness.

Design high-level software architecture and develop automated test software for component and integrated hardware testing. Write drivers for ground support equipment, implement ground control and telemetry software, validate flight components, support development through flight, and assist hiring efforts.

Lead design and implementation of a unified HIL/SIL test platform: define requirements, architect system, build device drivers and user interfaces, scale SIL cloud infrastructure, and troubleshoot electrical and software systems across hardware-software integration.

Design, implement, and maintain custom test frameworks for Illumina's primary analysis software. Create and expand automated tests, troubleshoot CI/CD pipelines, investigate failures, collaborate with developers to diagnose root causes, and ensure tests are reproducible, documented, and maintainable as analysis capabilities evolve.