Senior Software Development Engineer in Test (SDET) - Applications

Ellipsis Health is creating cutting-edge AI/ML products that solve healthcare staffing challenges and administrative burdens using conversational AI and our patented voice biomarker technology. We are seeking a Senior Software Development Engineer in Test (SDET) with strong experience in both functional testing and automation to validate system behavior and user workflows while building scalable automation to improve quality and release confidence.

Responsibilities:

• Perform both manual testing and automation across system workflows and application features
• Design, develop, and execute test plans and test cases for end-to-end system behavior
• Build and maintain automation frameworks to improve test coverage and efficiency
• Validate system interactions, workflows, and integrations to ensure reliability and consistency
• Perform exploratory testing to uncover edge cases and gaps in system behavior
• Identify, document, and track defects; collaborate closely with engineering teams for resolution
• Participate in Agile ceremonies, providing QA input during sprint planning and retrospectives
• Support release validation, regression testing, and post-deployment verification
• Integrate automated tests into CI/CD pipelines for continuous quality validation
• Define and track quality metrics and test coverage
• Contribute to improving overall testing strategy, frameworks, and quality processes

Requirements:

• 5+ years of experience in an SDET role with a strong mix of functional testing and automation
• Experience validating end-to-end system workflows and user journeys
• Hands-on experience building and maintaining test automation frameworks
• Experience with automation tools such as Playwright, Selenium, or similar
• Proficiency in JavaScript/TypeScript and/or Python for test automation and scripting
• Strong understanding of test design techniques, QA methodologies, and defect tracking
• Experience working with complex or distributed systems
• Experience working in Agile/Scrum environments
• Strong analytical and problem-solving skills with attention to detail
• Excellent communication and collaboration skills
• Experience testing conversational voice AI agents or real-time communication systems
• Exposure to monitoring/logging tools such as Datadog, Splunk, or similar
• Basic understanding of authentication/authorization (RBAC, OAuth, etc.)
• Experience in healthcare or other regulated environments
• Familiarity with testing considerations for LLMs and GenAI systems