nantha kumar G
Software Development Engineer in Test (SDET)
About
Software Test Engineer with 3.8 years of hands-on expertise in web application automation and manual testing across healthcare, SaaS, and sales engagement domains. Proficient in the analysis, design, implementation, and execution of test cases, procedures, and suites using Cypress and Playwright with JavaScript and TypeScript. Skilled in test strategy and planning, REST API validation, CI/CD pipeline integration, and data validation across PostgreSQL, MySQL, and MongoDB. Strong knowledge of SDLC, STLC, and Agile methodologies, with a track record of finding and preventing bugs to improve product quality.
Skills & Expertise (26)
Work Experience
Software Development Engineer in Test (SDET)
VoxyHealth
Dec 2025 - Present
Led the test effort; designed test cases, procedures, and suites. Built web app automation in Cypress and Playwright (JavaScript/TypeScript). Used Page Object Model, auto-waiting, network mocking, and parallel runs to cut flaky tests. Tested LLM prompts and voice agent calls — routing, data capture, EMR/EHR, escalation. Validated REST APIs with Postman and Cypress in GitHub Actions CI/CD. Verified data integrity across PostgreSQL, MySQL, and MongoDB. Found and prevented defects via unit testing and code-coverage tracking.
Software Development Engineer in Test (SDET)
Klenty Soft Inc.
Aug 2022 - Nov 2025
Built UI automation in Cypress and Playwright (TypeScript) for a B2B sales platform. Ran Playwright across Chromium, Firefox, and WebKit with API mocking and tracing. Tested email cadences, LinkedIn tasks, dialer, voicemail, and Twilio call recordings. Verified WebSocket transcripts (Google Speech-to-Text), CRM, and browser plugins. Wrote tests with nock and sinon; mocked APIs with MSW for fast, reliable runs. Tested bulk LinkedIn jobs on AWS Lambda and RabbitMQ; verified queueing and Elastic IPs. Built GitHub Actions with JIRA checks, linting, and parallel Cypress on Azure. Planned and maintained test environments on Heroku and AWS Lambda.
Education
Diploma in Petrochemical Engineering - Nandha Polytechnic College
2018 - 2021 · Afghanistan
Certifications
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Skills (26)
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