Open to opportunities

Himanshu Singh

@himanshusingh9

Senior QA & Automation Engineer specializing in ETL/data pipeline validation and AI/LLM evaluation with Playwright (Python).

India

Message

What I'm looking for

I’m looking for a QA role where I can own ETL/data pipeline validation and UI automation with Playwright, while extending into AI/LLM evaluation and CI/CD-driven quality. I want clear acceptance criteria, fast feedback loops, and strong collaboration.

I’m a Senior QA & Automation Engineer with 6+ years specializing in ETL/data pipeline validation and UI test automation using Playwright (Python), along with AI/LLM model evaluation. I’ve delivered source-to-target reconciliation, SCD Type 2 validations, and data integrity audits—often catching transformation failures and pipeline bottlenecks before production deployment.

I build reliable automation using a Playwright Page Object Model framework and integrate testing into CI/CD via Jenkins and GitHub Actions. I also apply hands-on LLM evaluation with DeepEval, RAGAS, and LangSmith for hallucination and groundedness-focused testing, partnering with data engineers and stakeholders to document findings against acceptance criteria.

Experience

Work history, roles, and key accomplishments

Current

Senior QA Engineer - ETL

Current

Cognizant Technology Solutions

Apr 2025 - Present (1 year 3 months)

Spearheaded end-to-end ETL pipeline validation for large-scale data migration projects, including source-to-target reconciliation across 50+ pipelines and 10M+ row datasets. Performed SCD Type 2 validations and data integrity audits, reducing data discrepancy rate by 30%.

SCD Type 2 Validation Unit Testing Data Auditing

QA Engineer - AI/LLM Testing

Scikiq Pvt Ltd / Data & Analytics Services

Mar 2024 - Sep 2024 (6 months)

Designed and implemented test automation frameworks for LLM/ML systems to evaluate hallucination, relevancy, and groundedness metrics using DeepEval and RAGAS with LangSmith. Built UI and workflow validation suites with Playwright (Python) using a Page Object Model and integrated CI/CD with Jenkins and GitHub Actions.

DeepEval Ragas Langsmith Page Object Model CI CD Jenkins GitHub Actions

QA Engineer - Web & Mobile

Smart Works Co-working Space Pvt Ltd

Jan 2022 - Jan 2024 (2 years)

Developed and maintained Playwright (Python) UI validation and regression test scripts across 15+ web applications. Designed Appium test suites for Android and iOS and integrated automated checks into CI/CD pipelines to improve release speed and reduce post-deployment defects.

Functional Testing Regression Testing Appium Android Testing IOS Testing CI CD Pipelines

Test Engineer

Tekshaper Pvt Ltd

Jan 2021 - Nov 2021 (10 months)

Conducted SQL-based backend data validation and database testing to ensure data accuracy and integrity. Managed test planning and defect reporting throughout the QA lifecycle using Jira.

SQL Data Validation Database Testing Test Planning Jira Relational Databases

Test Engineer

Soft Solution Pvt Ltd

Jul 2019 - Dec 2020 (1 year 5 months)

Automated end-to-end regression and functional tests for eCommerce workflows using Selenium and Playwright, including during high-traffic sales events. Designed and executed performance tests for scalability and stability and performed VAPT-aligned security testing for compliance and risk mitigation.