Senior QA Automation Engineer

• Ensure the quality and reliability of assigned products across the full stack - UI, APIs, and data - defining test approach and risk coverage with the QA Manager, and leveraging AI tools to improve coverage and efficiency
• Build, extend, and improve scalable automation frameworks in Selenium and Playwright that the team relies on, reducing manual testing effort and increasing confidence in every release
• Act as a quality advocate within the team - reviewing test code, sharing testing practices with peers, and raising design concerns early enough to prevent defects rather than catch them, * Plan and execute test coverage for complex, cross-system features, including functional, regression, smoke, integration, and end-to-end testing
• Design and execute manual and automated test cases covering functionality, performance, and reliability, including positive, negative, and edge cases
• Assess risk and prioritize testing effort, making clear recommendations on depth of coverage versus delivery timelines
• Map test cases to business requirements and functional designs, ensuring traceability and identifying gaps before development begins
• Investigate complex or intermittent failures to root cause, distinguishing product defects from test instability and environment issues
• Document and report defects, verify fixes, and ensure timely resolution in collaboration with development teams

Database & Data Validation

• Write and execute complex SQL queries to validate data integrity, transformations, and business logic across the application stack
• Verify data accuracy through ingestion, normalization, and processing workflows - record counts, deduplication, field-level mapping, and malformed or partial data
• Validate database interactions triggered by UI and API operations, and test data migrations, schema changes, and backfills for correctness and backward compatibility
• Build and maintain reusable test data sets and database setup and teardown routines for reliable, repeatable automated runs, * Implement and review automated test scripts using Java with Selenium WebDriver and Playwright, following best practices such as the Page Object Model
• Contribute to the architecture and long-term health of automation frameworks - structure, reusable components, reporting, and test data management
• Incorporate database validation into automated suites through query-based assertions and programmatic test data setup
• Improve automation reliability by reducing flakiness, execution time, and maintenance cost as suites grow
• Integrate automated tests into CI/CD pipelines and support optimization within DevOps workflows, including parallel execution
• Support performance and scale testing, and recommend tools and processes that measurably improve QA effectiveness, * Partner with the QA Manager, developers, and product managers to clarify requirements and acceptance criteria
• Support and mentor less experienced QA engineers through technical guidance, code review feedback, and knowledge sharing
• Participate in design reviews and technical discussions, surfacing testability and reliability concerns early
• Contribute to continuous improvement of QA processes, tools, and standards across the team

We are seeking a detail-oriented and proactive QA Automation Engineer to join our team. This role is responsible for ensuring the quality, reliability, and performance of our applications through a combination of manual and automated testing across front-end and back-end systems. The ideal candidate is passionate about software quality, enjoys working in a collaborative environment, and is motivated to improve testing processes, tools, and automation coverage., * Hands-on experience using AI tools for test case generation, test data creation, and defect analysis

• Familiarity with Model Context Protocol (MCP) tooling, such as Playwright MCP, for AI-driven browser interaction, exploratory testing, and test script generation
• Experience with AI-assisted coding tools for building and maintaining automation scripts, with sound judgment about where AI output needs human validation
• Ability to apply AI thoughtfully within QA workflows and share what works with the rest of the team, * 8+ years in software quality assurance, with at least 5 years in test automation
• Strong programming skills in Java, with demonstrated ability to write clean, maintainable, reviewable test code
• Hands-on experience with Selenium WebDriver and Playwright, and with design patterns such as the Page Object Model
• Experience contributing to the design or significant refactoring of an automation framework, not just writing tests within one
• Solid API testing experience and strong SQL skills, with hands-on experience validating application behavior directly against relational databases
• Working knowledge of CI/CD tooling and version control, with experience running automation reliably within pipelines
• Strong analytical and debugging skills, with a track record of driving complex issues to root cause, * Experience working in cybersecurity, vulnerability management, or security-focused products and environments
• Familiarity with security concepts such as vulnerabilities, risk scoring, APIs, and data protection practices
• Experience with MCP servers or agent-based testing workflows beyond basic tool usage
• Experience testing ETL or data pipelines, or working with large-scale or NoSQL data stores
• Experience with performance or load testing, cloud environments, or containerized test infrastructure, * Self-starter with a strong ownership mindset and the ability to wear multiple hats in a fast-paced environment
• Strong problem-solving and collaboration skills, with the maturity to disagree constructively
• Ability to quickly learn new tools, technologies, and frameworks - and to teach them to others
• Willingness to fail fast, iterate, and improve

Pulled from the full job description

• Paid time off
• Vision insurance
• Dental insurance
• Life insurance
• Disability insurance, * Nucleus is a truly unique solution that’s defining a market AND making an actual impact.
• We’re biased, but you will get to work with one of the best teams in security. We have a lot to get done and we work extremely hard, but we have fun in the process.
• Work with a high-performing team that values creativity, autonomy, and innovation.
• Collaborate on meaningful products that improve the security posture of major organizations.
• Enjoy flexible remote work arrangements and a strong emphasis on work-life balance.

Just a few of our Outstanding benefits Fully remote Flexible PTO 401k company contribution 100% company-paid healthcare options 100% company-paid dental 100% company-paid vision 100% company-paid life insurance 100% company-paid short-term disability insurance »>and more!