Software Quality Engineer

Title: Software Quality Engineer Location: San Bruno, California

As a Software Quality Engineer, you will join a small team to own quality for the consumer and enterprise experiences our customers rely on: our website, our iOS and Android mobile apps, our e-commerce flows, and the enterprise software behind Mill Commercial. You will work cross-functionally with software, hardware, and product teams.

AI-assisted development is core to how we build software, not a peripheral tool. We expect daily fluency with tools like Claude Code, for example to write and maintain test automation, generate test cases from requirements, and triage failures. As a senior engineer, you will also help set the team's standards for using these tools well, including how AI-generated tests are reviewed.

Key Responsibilities

• Work with leaders across the company to define requirements and feature requests, and translate them into comprehensive test plans.
• Design and execute test cases and test plans for consumer web, mobile app, and e-commerce features.
• Design and execute test plans for enterprise software, including multi-user accounts, roles and permissions, reporting and data accuracy, integrations, and scale and reliability for business customers.
• Test our iOS and Android apps across devices, OS versions, screen sizes, and network conditions, and validate app releases before they ship.
• Test web experiences across browsers and devices, including responsive layout, accessibility, and performance.
• Build and extend our test automation framework, and write automated tests for web, mobile, enterprise, and full-stack scenarios that mimic real-world customer behavior and give broad coverage.
• Validate how the apps and web experiences work with our cloud services and connected devices end to end.
• Partner with SDET, software, cloud, firmware, and hardware teams and Technical Program Managers on validation, bug triage, and improving the end-customer experience.
• Partner with Product Managers to develop and validate customer scenarios, analyze failures, and review device metrics from field trials.
• Champion product quality at every stage of development, including CI/CD and deployment.
• Help set team practices for using AI-assisted tools in testing.

Minimum Qualifications

• B.S. in Computer Science or a related technical discipline, or equivalent practical experience.
• 5+ years in software development and quality assurance.
• Experience testing consumer-facing web, mobile (iOS and/or Android), and e-commerce products.
• Experience testing enterprise or B2B software.
• Strong foundation in software quality fundamentals: test planning, test design, and automation.
• Hands-on experience with Python and/or Java.
• Proven ability to write your own automation framework and automated tests using pytest and other tools (for example Playwright or Appium), and to drive increased test coverage.
• Excellent written and verbal communication, including documentation and test architecture diagrams.
• Daily use of AI coding tools such as Claude Code in your workflow.

Preferred Qualifications

• Experience testing with our specific stack: React Native (mobile), AWS Lambda with CDK (TypeScript)
• Experience testing connected or hardware-paired consumer products.
• Experience at startups or in rapid prototyping environments.
• Familiarity with Agile methodologies, version control systems (for example GitHub), and CI/CD pipelines.

The estimated base salary range for this position is $150K to $170k, which does not include the value of benefits or a potential equity grant. A wide range of factors are considered in making compensation decisions, including but not limited to skill sets, market conditions, experience and training, licensure and certifications, and business and organizational needs.