Senior QA Automation Engineer
Nucleus Security3 months ago
Remote, United StatesSenior
Base Salary
$135k - $135k/yr
Responsibilities
- Define test approaches and risk coverage for UI, API, data, and full-stack features.
- Build, extend, review, and maintain scalable automation frameworks using Java, Selenium WebDriver, Playwright, and the Page Object Model.
- Plan and execute manual and automated functional, regression, smoke, integration, end-to-end, performance, and reliability testing.
- Investigate intermittent failures, distinguish product defects from test instability and environment issues, document defects, verify fixes, and drive resolution.
- Write complex SQL queries to validate data integrity, transformations, business logic, migrations, schema changes, backfills, and application behavior.
- Create reusable test data sets and database setup and teardown routines for reliable automated runs.
- Integrate automated tests into CI/CD pipelines and improve parallel execution, reliability, speed, and maintainability.
- Use AI tools and MCP tooling for test-case generation, test-data creation, defect analysis, browser interaction, exploratory testing, and script generation.
- Partner with QA managers, developers, and product managers on requirements, acceptance criteria, design reviews, and testability concerns.
- Mentor less experienced QA engineers through technical guidance, code reviews, and knowledge sharing.
Requirements
- At least 8 years of software quality assurance experience, including at least 5 years in test automation.
- Strong Java programming skills and the ability to write clean, maintainable, and reviewable test code.
- Hands-on experience with Selenium WebDriver, Playwright, and the Page Object Model.
- Experience designing or significantly refactoring an automation framework rather than only writing tests within an existing framework.
- Strong API testing and SQL skills, including validation against relational databases.
- Working knowledge of CI/CD tooling and version control, with experience running automation reliably in pipelines.
- Strong analytical and debugging skills with experience driving complex issues to root cause.
- Preferred experience in cybersecurity, vulnerability management, security-focused products, ETL or data pipelines, large-scale or NoSQL data stores, performance or load testing, cloud environments, containerized test infrastructure, MCP servers, or agent-based testing workflows.
- Ability to collaborate, mentor others, learn and teach new tools, and work with ownership in a fast-paced environment.
Benefits
- Fully remote work arrangement.
- Flexible paid time off.
- 401k company contribution.
- 100% company-paid healthcare options, dental, vision, life insurance, and short-term disability insurance.
- Work-life balance, autonomy, creativity, innovation, and collaboration on products that improve organizational security posture.
About Nucleus Security
Nucleus Security builds an exposure and vulnerability management SaaS platform for enterprise and government security teams. It ingests and normalizes asset, vulnerability, and threat intelligence from scanners, cloud services, and other tools to prioritize and orchestrate remediation at scale, supporting RBVM and application security workflows. Founded in 2019 and headquartered in Sarasota, Florida, the privately held company raised a Series C in 2026.