Balaji

Software Development Engineer in Test

Building reliable software through test automation, API validation, cloud execution, and practical quality engineering.

github.com/balaji16s linkedin.com/in/balaji16s [email protected] +91 88706 14654 Resume
Portrait of Balaji

About

I'm a Software Development Engineer in Test with 8 years of experience designing scalable automation frameworks and validating complex systems. I work across Playwright, Selenium, API testing, SQL, AWS, and CI/CD to improve coverage, shorten regression cycles, and reduce production risk. I also enjoy applying AI-assisted testing, LLM evaluation, and practical automation to make quality engineering faster and sharper — and I ship mobile apps on the side.

Skills

Core Stack

Python Java SQL Playwright Selenium API Testing Cucumber BDD Tricentis Tosca AWS CI/CD Docker Git

Certifications

ISTQB Certified Tester Foundation Level badge

ISTQB

Foundation Level Tester

AWS Certified Cloud Practitioner badge

AWS

Certified Cloud Practitioner

Google AI Essentials certificate badge

Google

AI Professional

SAFe Agile certification badge

SAFe

Agile Practitioner

Experience

8+ years 4 companies

Current role

Sun Life Global Solutions

SDET I · Bengaluru, India

Jan 2023 – Present

  • Built a Playwright + Python automation framework for UI and API testing across an enterprise AI chat assistant.
  • Designed API validation workflows that improved response reliability and reduced critical defects by ~30%.
  • Enabled AWS-based parallel test execution, cutting regression cycle time by ~40%.
  • Automated 400+ test cases using Tosca Commander, improving regression coverage across systems.

myclassroom

SDE – Testing · Noida, India

Jun 2022 – Dec 2022

  • Tested web and mobile applications for an ed-tech platform supporting JEE and NEET preparation.
  • Built Selenium WebDriver + Java automation scripts with Cucumber BDD for critical regression coverage.
  • Performed end-to-end validation across student journeys — content access, assessments, and performance tracking.

Anthem

Software Tester · Chennai, India

Nov 2021 – Jun 2022

  • Tested web and mobile applications in an Agile environment to support stable, high-quality releases.
  • Worked with Business Analysts and UI/UX teams to translate requirements into effective test coverage.
  • Built Selenium WebDriver + Java scripts for smoke testing and faster critical-path validation.

Cognizant Technology Solutions

Associate · Chennai, India

May 2018 – Nov 2021

  • Tested web and mobile applications across retail and e-commerce domains, ensuring stable releases.
  • Executed functional and automated tests for end-to-end order placement and customer journeys.
  • Built Selenium WebDriver + Java scripts for critical scenarios, improving regression efficiency.

Side Projects

Open-source test automation

Playwright Pytest E2E Framework

A scalable end-to-end test automation framework built with Playwright, Python, and pytest — covering UI and API testing together, with reusable Page Object Model fixtures, API-driven test data setup, and built-in reporting.

PlaywrightPythonPytest
View on GitHub →

AI agent tooling

sdet-skills

A collection of AI agent skills built for QA engineers and SDETs, covering automation test creation, test review, Jira bug reporting, and requirements analysis — grounded in ISTQB testing standards and usable with any agent-compatible AI tool.

AI Agent SkillsPythonISTQB
View on GitHub →