Lalithambigai Sigaamani
@lalithambigaisigaama
Lead SDET and QA Automation Architect specializing in scalable automation and GenAI testing to accelerate quality in cloud enterprises.
What I'm looking for
I’m a Lead SDET / QA Automation Architect with 15+ years in Software Quality Engineering, test automation, QA, and test leadership across banking, financial services, telecom, insurance, payroll/HR, and digital transformation. I design and maintain scalable automation frameworks for Web, API, Mobile, and enterprise applications, with a strong focus on quality gates and continuous testing.
I’ve led Gen AI testing initiatives that cut test design effort by ~40%, improved edge-case validation and test coverage, and reduced production defect leakage. In Agile programs, I’ve increased automation coverage from 40% to 70%+ and reduced regression execution time by up to 50%, enabling faster feedback and release readiness.
I build CI/CD-enabled testing ecosystems using Jenkins, GitHub Actions, and TeamCity, integrating automated suites for smoke, regression, integration, and microservices validation. I also drive shift-left testing, risk-based strategies, defect prevention, root-cause analysis, and governance—while mentoring geographically distributed QA teams and establishing automation standards through code reviews and best practices.
Experience
Work history, roles, and key accomplishments
Lead QA -SDET
Freddie Mac
Mar 2026 - Present (5 months)
Led quality engineering and test automation for Freddie Mac’s cloud-native testing platform and enterprise mortgage application modernization on AWS. Designed enterprise-scale automation frameworks and integrated automated test suites into CI/CD for continuous quality gates and release validation.
Project Lead SDET
Commonwealth Bank of Australia
Aug 2024 - Dec 2025 (1 year 4 months)
Led quality engineering and test automation for Commonwealth Bank of Australia’s corporate card digitization program within NetBank. Built Playwright-based automation frameworks, drove GenAI-assisted testing, and integrated test suites into CI/CD for continuous quality validation.
Lead SDET
TriNet
Aug 2020 - Dec 2024 (4 years 4 months)
Led quality engineering for TriNet’s cloud-based payroll and workforce management platform across payroll processing, benefits administration, and HR operations. Modernized and scaled automation frameworks, embedded shift-left testing, and improved CI/CD-driven regression and release validation.
Associate Technical Lead
T-Mobile
Oct 2014 - Oct 2017 (3 years)
Developed and led automation engineering for T-Mobile’s eServices automation platform supporting customer account management, billing, service activation, and digital self-service. Implemented scalable UI/API test frameworks and led a team of automation engineers with cross-browser testing using Sauce Labs.
QA Automation Engineer
HBO / Standard Bank South Africa
Nov 2009 - Sep 2014 (4 years 10 months)
Worked on FAST automation frameworks and a banking platform to support functional testing, regression testing, test data management, and quality assurance initiatives. Built and enhanced automation frameworks using Selenium, POM, and data-driven approaches with Java-based test data generation tooling.
Education
Degrees, certifications, and relevant coursework
ISTQB
ISTQB Certified Tester — Foundation Level, Software Testing
Earned the ISTQB Certified Tester — Foundation Level certification.
Availability
Location
Authorized to work in
Job categories
Skills
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