Software Quality Engineer

Mill • San Bruno, CA

3d

About The Position

Mill is a waste prevention technology company focused on preventing food waste through technology and infrastructure for homes, businesses, and municipalities. Its products transform food scraps into useful resources, including chicken feed. The company’s residential food recyclers have helped households divert millions of pounds of food scraps, and Mill is preparing to launch Mill Commercial, an end-to-end food-waste management solution for commercial environments.

The Software Quality Engineer will join a small team and own quality for Mill’s consumer and enterprise experiences, including its website, iOS and Android apps, e-commerce flows, and the enterprise software behind Mill Commercial. The role works cross-functionally with software, hardware, product, cloud, firmware, and program teams. AI-assisted development is a core part of Mill’s software workflow; the engineer is expected to use tools such as Claude Code daily for test automation, generating test cases, and triaging failures, and to help establish standards for effective use and review of AI-generated tests.

Requirements

• 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, including test planning, test design, and automation.
• Hands-on experience with Python and/or Java.
• Ability to write an automation framework and automated tests using pytest and other tools, such as Playwright or Appium, and to drive increased test coverage.
• Excellent written and verbal communication skills, including documentation and test architecture diagrams.
• Daily use of AI coding tools such as Claude Code in the workflow.

Nice To Haves

• Experience testing with Mill’s stack, including React Native for mobile and 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 such as GitHub, and CI/CD pipelines.

Responsibilities

• Work with company leaders 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 iOS and Android apps across devices, operating-system versions, screen sizes, and network conditions, and validate app releases before shipment.
• Test web experiences across browsers and devices, including responsive layout, accessibility, and performance.
• Build and extend the test automation framework, and write automated tests for web, mobile, enterprise, and full-stack scenarios that reflect real-world customer behavior and provide broad coverage.
• Validate end-to-end interactions between apps and web experiences, cloud services, and connected devices.
• 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 establish team practices for using AI-assisted tools in testing.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior