QA Automation Engineer Cover Letter Examples & Writing Guide

Dear Hiring Manager, I am writing to express my strong interest in the Senior QA Automation Engineer position at Google. With 7 years of experience building test automation frameworks and deep expertise in continuous testing, I am excited to contribute to ensuring quality for products used by billions. In my current role as Lead QA Automation Engineer at Microsoft, I have successfully: • Built end-to-end test automation frameworks using Selenium WebDriver and TestNG • Implemented API testing infrastructure using REST Assured and Postman • Designed CI/CD pipelines integrating automated tests with Jenkins and Azure DevOps • Reduced regression testing time from 40 hours to 2 hours through automation • Built performance testing solutions using JMeter and Gatling • Mentored 6 junior automation engineers in test automation best practices Google's commitment to engineering excellence and quality-first culture inspire me. I am particularly excited about contributing to test automation for cloud and mobile platforms. I would welcome the opportunity to discuss how my test automation expertise can contribute to Google's quality initiatives. Sincerely, Michael Zhang

Dear Hiring Team, I am excited to apply for the QA Automation Engineer position on the AWS team. With 6 years of experience in cloud testing and automation, I am eager to help ensure the reliability of the world's most comprehensive cloud platform. At Salesforce, I have built test automation including: • Developed test automation frameworks for cloud services using Python and Pytest • Implemented infrastructure testing using Terraform and AWS SDKs • Built automated API testing for RESTful web services with comprehensive coverage • Designed chaos engineering experiments validating system resilience • Created monitoring and alerting for automated test environments • Integrated security testing including SAST and DAST into CI/CD pipelines Amazon's customer obsession and commitment to operational excellence inspire me. I am particularly excited about working on AWS service testing and validation. I look forward to discussing how my cloud testing expertise can contribute to AWS quality. Best regards, Jennifer Chen

Dear Hiring Manager, I am thrilled to apply for the QA Automation Engineer position on Meta's Mobile team. With 6 years of experience in mobile test automation and expertise in iOS and Android testing, I am excited to help ensure quality for apps used by billions worldwide. In my role as Senior QA Engineer at Uber, I have: • Built mobile test automation using Appium and XCUITest for iOS and Android • Implemented device farm infrastructure for parallel test execution across 100+ devices • Designed visual regression testing using Applitools for UI consistency validation • Created performance testing frameworks measuring app startup time and memory usage • Built accessibility testing automation ensuring WCAG compliance • Integrated mobile tests into CI/CD pipelines with automated deployment to test environments Meta's mission to bring the world closer together and focus on mobile-first experiences inspire me. I am particularly excited about working on Facebook and Instagram mobile quality. I would welcome the opportunity to discuss how my mobile automation expertise can contribute to Meta's apps. Sincerely, Sarah Martinez

Dear Hiring Team, I am writing to apply for the QA Automation Engineer position on Netflix's Streaming Platform team. With 5 years of experience in video streaming testing, I am eager to help deliver exceptional entertainment experiences to millions of subscribers. At Spotify, I have delivered test automation including: • Built automated testing for video encoding, transcoding, and adaptive bitrate streaming • Implemented load testing simulating millions of concurrent streaming sessions • Designed test automation for content delivery networks and edge caching • Created quality metrics dashboards tracking video quality and playback failures • Built automated testing for multiple device platforms including web, mobile, and smart TVs • Performed A/B testing validation for recommendation algorithms and UI experiments Netflix's culture of innovation and commitment to customer experience through quality inspire me. I am particularly excited about working on streaming quality and content delivery testing. I look forward to discussing how my streaming test expertise can contribute to Netflix's platform quality. Best regards, David Park

Dear Hiring Manager, I am excited to apply for the QA Automation Engineer position at Stripe. With 6 years of experience in financial systems testing and expertise in payment processing validation, I am eager to help ensure reliability for millions of businesses. At Square, I have built test automation including: • Designed test frameworks for payment processing including card transactions and ACH transfers • Implemented comprehensive API testing for payment gateway integrations • Built data validation testing for financial reconciliation and settlement • Created automated security testing for PCI DSS compliance validation • Designed test scenarios for fraud detection and prevention systems • Performed load testing for Black Friday and peak transaction volumes Stripe's mission to increase the GDP of the internet and focus on developer experience inspire me. I am particularly excited about working on payment infrastructure quality. I would welcome the opportunity to discuss how my payment testing expertise can contribute to Stripe's reliability. Sincerely, Lisa Rodriguez

Dear Hiring Team, I am writing to express my interest in the QA Automation Engineer position at Airbnb. With 5 years of experience in full-stack test automation, I am excited to help ensure quality for the platform connecting millions of hosts and guests. At Lyft, I have delivered test automation including: • Built end-to-end test automation using Cypress and Playwright for web applications • Implemented GraphQL API testing with comprehensive schema validation • Designed contract testing using Pact for microservices validation • Created visual regression testing detecting UI inconsistencies • Built test data management frameworks for isolated test environments • Integrated automated accessibility testing ensuring inclusive design Airbnb's mission to create a world where anyone can belong anywhere inspires me. I am particularly excited about working on marketplace quality and trust & safety testing. I look forward to discussing how my full-stack automation expertise can support Airbnb's quality. Best regards, Kevin Williams

Dear Hiring Manager, I am excited to apply for the Entry-Level QA Automation Engineer position at HubSpot. As a recent graduate with a B.S. in Computer Science from Carnegie Mellon University and internship experience in test automation, I am eager to start my QA career. During my internship at Salesforce and personal projects, I have: • Built automated test suites using Selenium WebDriver and Python • Implemented API testing using Postman and REST Assured • Created CI/CD pipelines integrating automated tests with GitHub Actions • Developed test automation frameworks following Page Object Model design pattern • Wrote unit tests using JUnit and pytest with high code coverage • Performed manual exploratory testing and bug reporting My academic coursework included software testing, quality assurance, DevOps, and agile methodologies. I am passionate about software quality and test automation. HubSpot's commitment to helping businesses grow and focus on quality inspire me. I am particularly excited about learning from experienced QA engineers and contributing to marketing automation platform quality. I would welcome the opportunity to discuss how my automation skills and enthusiasm can contribute to HubSpot's QA team. Sincerely, Emily Thompson