Senior Software Development Engineer in Test (SDET)

Senior Software Development Engineer in Test (SDET)Work Location & Reporting Address: Hartford, CT 06156 (Onsite-Hybrid. Candidates willing to relocate to client's location will be considered but local candidates are highly preferred)Must Have Skills:Java and/or Node.js DevelopmentPlaywright/Selenium Automation Framework DevelopmentAPI Testing (REST, Postman, Contract Testing, Mocking)Conversational AI Testing (Voice & Chat Channels), IVR automation testing using tools like Cyara/HammerAI Testing and AI Agent ValidationCI/CD Integration (GitHub Actions)Test Harness and Test Framework DesignNice to Have Skills:Healthcare / Insurance domain experienceVoice automation tools (Cyara, Hammer)Contract testing and API mocking toolsPerformance / Load testingClient / Cloud-based application testingExperience mentoring engineers and driving quality strategyDetailed Job DescriptionClient is seeking a hands-on Software Development Engineer in Test (SDET) to support Aetna's Conversational AI platform across Voice and Chat channels. The candidate will be responsible for designing and developing automation frameworks, test harnesses, and test strategies for AI-powered applications.Key ResponsibilitiesBuild and maintain Playwright/Selenium-based automation frameworks and test harnesses. Develop automated tests for APIs, backend services, and end-to-end workflows. Validate conversational AI experiences including voice/chat interactions, intent recognition, multi-turn conversations, and AI agent workflows. Integrate automation suites with CI/CD pipelines and support release quality activities. Collaborate with Product, Architecture, and Engineering teams to define test coverage and quality standards. Support AI/LLM testing, response validation, and overall platform reliability.Minimum Years of Experience Required: 8 yearsMust Have Skills:Java and/or Node.jsPlaywright/Selenium Automation Framework DevelopmentAPI Testing (REST, Postman, Contract Testing)Conversational AI Testing (Voice & Chat)CI/CD (GitHub Actions)Nice to Have Skills:AI/LLM Testing & AI Agent ValidationIVR testing using Cyara / HammerContract Testing & API MockingHealthcare / Insurance Domain ExperiencePerformance & Load TestingCertifications Needed: Not mandatory, Preferred: Playwright, Java, AWS/Cloud, AI Testing certifications (if available)