SDET

Mid To Senior SDET We are seeking a Mid to Senior SDET to own and evolve our test infrastructure, enabling our engineering team to ship quality features at velocity. You will design test harnesses, establish testing best practices, and ensure our platform—including AI Agent capabilities—is thoroughly validated across API, backend, and full-stack scenarios.

This is not a QA role. You are an engineer with a testing focus, embedded with developers, contributing to sprint work, test strategy, and platform reliability.

Key Responsibilities

Understand how all elements of the system software ecosystem work together and develop QA approaches and tools that fit the overall strategy

Collaborate with Product, Architecture, and Engineering teams to define test strategy, coverage goals, and acceptance criteria

Develop test strategies and create appropriate test harnesses for Conversational AI systems across Voice and Chat channels

Identify testing gaps and recommend solutions

Design, build, and maintain reusable test harnesses and frameworks that eliminate decision paralysis for engineers

Provide clear patterns for: test framework selection, test data setup, and test implementation

Create comprehensive examples and documentation so developers can write tests without reinventing solutions

Provide test infrastructure to enable engineering teams to test and own quality of the services

Support testing across Java/Node.js backends, APIs, and Conversational AI platforms

Develop specialized test strategies for conversational AI workflows and agent interactions

Build test harnesses for API-level, backend service, and end-to-end scenarios

Validate complex multi-turn conversations, intent recognition, and orchestration logic

Develop and automate Voice and Chat test plans

Be a stakeholder of the release to ensure defects are fixed per SLA and end customer experience is protected and improved

Monitor and report on test execution and quality metrics

Validate that platform changes maintain or improve customer experience

Educate and train engineers on test harnesses, frameworks, and best practices

Mentor team members on test-driven development and automation patterns

Make testing accessible—remove friction from the testing process

When harness work is complete, contribute to automated test implementation and general development items

Pair with developers on complex testing scenarios

Help close any testing gaps across the team

Required Qualifications

Candidate must be located within commuting distance of either Hartford, CT or Wellesley MA or be willing to relocate to the area.

5+ years total software engineering experience with 3+ years focused on test automation/SDET work

A deep understanding of automation testing and ability to lead engineers in writing automation scripts/programs that aid automated testing

Strong proficiency in at least one backend language: Java, Node.js with object-oriented design experience

API testing expertise: REST, request/response validation, mocking, contract testing.

Test framework experience: JUnit, Jest, or equivalent; experience building custom frameworks a plus

Tools and Test Platforms - SOAPUI, Postman, Bruno, Playwright, Selenium, Cucumber, Hammer and Cyara.

Voice and Chat test automation expertise and familiarity with test methodologies for conversational systems.