Sr QA Mainframe .NET - CA​/Torrance - Local to Torrance, CA - in office​/Tues-Thurs

Sr QA Mainframe with .NET - CA/Torrance - Local to Torrance, CA - in office 8 hrs/ Tues-Thurs

Requisition Name:
Sr QA Mainframe

Start Date:

9/21/2026 Duration: 40 Weeks Services

Location:

CA/Torrance Max Rate: $60 phr on W2 or 70 $ phr on Corp
- Corp all inc Description Of Services The Auto Sales Application IT Tester is responsible for leading quality assurance activities across Auto business applications and technology platforms. This position ensures that software solutions meet functional, integration, performance, security, and business requirements before deployment to production. The role partners closely with business stakeholders, application development teams, solution architects, project managers, vendors, and operations teams to deliver high-quality, reliable systems that support Auto's Sales strategic business objectives.

Responsibilities include test strategy development, test planning, test execution, defect management, automation, and mentoring junior QA team members. The position plays a critical role in supporting large-scale modernization initiatives, cloud-based solutions, and customer-facing applications, and enterprise integrations. Key Responsibilities Quality Assurance Leadership

• Lead end-to-end testing activities across multiple projects and releases.
• Develop and maintain comprehensive test strategies, test plans, test cases, and test scripts.
• Define testing scope, entry criteria, exit criteria, and quality metrics.
• Establish QA best practices and testing standards across project teams.

• Execute and coordinate System Integration Testing (SIT), Regression Testing, User Acceptance Testing (UAT) support, and End-to-End testing.
• Validate business workflows, calculations, business rules, user interfaces, APIs, databases, and third-party integrations.
• Verify data integrity across applications, interfaces, and reporting systems.
• Ensure applications perform according to approved business requirements and design specifications.

• Identify, document, prioritize, and track defects through resolution.
• Facilitate defect triage sessions with development, business, and project teams.
• Analyze root causes and recommend corrective actions.
• Verify fixes through retesting and regression testing activities.

• Design and implement automated testing frameworks and regression suites.
• Identify opportunities to improve testing efficiency through automation and AI-assisted testing techniques.
• Collaborate with development teams to integrate automated testing into CI/CD pipelines.

• Coordinate performance, load, stress, and scalability testing efforts.
• Validate application performance against defined service-level objectives.
• Support penetration testing, security validation, and compliance-related testing initiatives.

• Partners with Business Analysts, Product Owners, Project Managers, Solution Architects, Developers, and Operations teams.
• Participate in Agile ceremonies including sprint planning, backlog refinement, reviews, and retrospectives.
• Collaborate with vendors and third-party implementation partners to resolve application defects and integration issues.

• Provide testing status reports, quality metrics, risk assessments, and release readiness recommendations.
• Present testing results and quality insights to project leadership and stakeholders.
• Support audit, compliance, and governance requirements related to software quality.

• Coach junior testers and QA analysts.
• Promote testing standards, knowledge sharing, and continuous improvement initiatives.
• Evaluate emerging QA tools, AI-enabled testing approaches, and industry best practices.

• Strong understanding of:
• Functional Testing
• System Integration Testing (SIT)
• User Acceptance Testing (UAT)
• Regression Testing
• API Testing
• Database Testing
• Performance Testing
• Defect Lifecycle Management
• Experience with:

• Jira
• SQL and database validation
• API testing tools (Postman, SoapUI, etc.)

• Strong analytical and critical thinking skills.
• Ability to interpret business requirements and translate them into test scenarios.
• Excellent written and verbal communication skills.
• Strong stakeholder management and leadership capabilities.

• ISTQB, CSTE, CSQA, or equivalent QA certification.
• Experience with AI-assisted testing tools and automation frameworks.
• Experience supporting cloud modernization and legacy system replacement initiatives.
• Knowledge of automotive services is a plus.

• Quality Focus
• Critical Thinking
• Evaluate Strategy Development
• Defect Analysis
• Risk Management
• Leadership & Mentoring
• Technical Expertise
• Collaboration
• Continuous Improvement
• Customer Focus
• Compliance with knowledge and understanding of…