Senior QA Tester responsible for planning and executing functional, integration, regression, UAT, API, database, and performance testing for large-scale Mainframe and .NET enterprise applications. The role includes SQL-based data validation, defect lifecycle management, test documentation, and collaboration with developers, business analysts, and stakeholders in Agile and Hybrid environments. Automotive experience, QA certifications, AI-assisted testing, cloud modernization, and legacy system replacement experience are preferred.
Role: Senior QA Tester
Location: Torrance, CA- 100% Onsite
Employment Type: W2 Only
Work Authorization: Any- No H1B/CPT
Locals highly preferred
No C2C, 1099, or third-party profiles accepted.
Job Description
We are seeking an experienced Senior QA Tester to
support testing of large-scale enterprise applications. The ideal candidate
will have strong experience in Mainframe and .NET application testing, along
with comprehensive knowledge of functional, integration, regression, API,
database, and performance testing.
Automotive industry experience is preferred but not
mandatory.
Required Qualifications
- 7+
years of experience in Software Quality Assurance and Application Testing
- Experience
testing large-scale enterprise applications
- Strong
Mainframe Testing experience
- .NET
application testing experience
- Experience
working in Agile and Hybrid delivery environments
- Hands-on
experience with Functional Testing, SIT, UAT, and Regression Testing
- Experience
with API, Database, and Performance Testing
- Strong
defect lifecycle management skills
- SQL
and database validation experience
- Experience
with Jira and ALM/Quality Center or equivalent test management tools
- Familiarity
with Postman, SoapUI, or similar API testing tools
Responsibilities
- Develop
and execute test scenarios, test cases, and test plans
- Perform
functional, integration, regression, UAT, API, database, and performance
testing
- Validate
Mainframe and .NET application functionality
- Identify,
document, track, and retest defects
- Perform
SQL-based data validation and reconciliation
- Collaborate
with developers, business analysts, and project stakeholders
- Support
testing activities in Agile and Hybrid delivery environments
- Ensure
application quality and readiness for release
Preferred Qualifications
- Automotive
industry or Automotive Services experience
- ISTQB,
CSTE, CSQA, or equivalent QA certification
- Experience
with AI-assisted testing tools and automation frameworks
- Experience
supporting cloud modernization initiatives
- Experience
with legacy system replacement programs
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