Lead Software Development Engineer in Test
About the Role: We are seeking a Lead SDET (Software Development Engineer in Test) to join the Lumistry team and drive a culture of engineering excellence and quality across our organization. In this role, you will own our quality engineering strategy, design scalable automation frameworks, and partner closely with engineering, product, and DevOps/SRE teams to ensure the reliability, performance, and scalability of our platform. With strong proficiency in JavaScript/TypeScript, you will lead the development of modern test infrastructure and embed quality practices throughout the software development lifecycle with the goal of increasing customer trust and elevating our speed of delivery. Description of Job Duties: Own and evolve the organization’s quality engineering strategy, standards, and best practices Design and implement scalable automation frameworks using JavaScript/TypeScript Develop and maintain automated UI, API, E2E, and integration test suites Partner with engineering and product teams to promote testable design and shift-left testing Participate in architectural and design reviews to improve system testability and resilience Lead efforts to improve test coverage, reliability, and execution performance Investigate automation failures, triage defects, and drive root cause analysis Design and manage test environments, data, and supporting infrastructure Evaluate and adopt new testing tools, frameworks, and methodologies Mentor and develop team members and establish quality engineering best practices Contribute to CI/CD pipelines and release-readiness processes Required Education, Knowledge and Special Skills: Bachelor’s or Master’s degree in a related field or equivalent experience 7+ years of experience in test automation and quality engineering 5+ years of professional experience with JavaScript/TypeScript Strong experience with modern automation tools (Cypress, Playwright, Appium, Bruno, or similar) Experience working in Agile environments with CI/CD pipelines Strong analytical, troubleshooting, and communication skills Ability to operate independently and lead cross-functional initiatives Experience building test infrastructure in cloud-native environments Preferred Knowledge and Experience: Experience with load and stress testing tools (Artillery or similar) Experience testing AI/ML or LLM-powered systems with non-deterministic behavior Familiarity with AI testing/validation tools and techniques Prior experience leading or scaling quality engineering programs Diversity & Inclusion at Lumistry Lumistry is an equal opportunity employer dedicated to an inclusive workplace. We prohibit discrimination and harassment based on race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, pregnancy, or any other characteristic protected by law. This commitment applies to all aspects of employment, from recruiting and hiring to compensation and promotion. Our decisions are based solely on qualifications, merit, and current business needs. Accessibility We provide reasonable accommodations for qualified individuals with disabilities during the application and interview process. If you require assistance, please don't hesitate to reach out. Apply To This Job