Mainframe Developer / Lead / Architect

NTT DATA, Inc.; Plano (TX); On-site; USD 120,000 - 170,000; Full time

Job summary

NTT DATA, Inc. in Plano, TX is seeking a Migration Testing Lead to define and own the testing strategy for the enterprise migration program, guiding cross-functional teams through end-to-end testing activities.

You will establish standards, risk-based approaches, and traceability between changes, requirements, and test coverage, while reporting progress to executives.

This role emphasizes automation, AI-enabled testing capabilities, and governance of release readiness across migration waves.

Responsibilities

• Define and own the overall migration testing strategy, framework, roadmap, and governance model.
• Establish testing standards, quality gates, entry/exit criteria, and release readiness processes.
• Develop a risk-based testing methodology aligned to migration waves and deployment milestones.
• Establish traceability between migration changes, risks, business requirements, and test coverage.
• Provide executive reporting on testing progress, quality metrics, risks, and release readiness.
• Lead application, infrastructure, and operational impact assessments to understand migration-related changes.
• Develop a risk-ranking framework to classify components based on:
• Code modifications
• JCL conversion impacts
• CICS transaction changes
• Security changes
• Operational and scheduler impacts
• Business criticality
• Define testing depth and coverage based on migration risk and business impact.
• Optimize testing effort by focusing on high-risk and high-business-value components.
• Maintain a Migration Testing Risk Register and Quality Heat Map.
• Identify migration-specific risks and ensure mitigation plans are incorporated into testing activities.
• Define the overall testing tool architecture and strategy for the migration program.
• Evaluate, select, and implement testing tools supporting:
• Test management
• Regression testing
• Performance testing
• Reporting and dashboards
• Establish automated validation approaches for batch jobs, file comparisons, data reconciliation, and migration verification.
• Design reusable automation frameworks and testing accelerators.
• Identify opportunities to leverage AI-enabled testing capabilities for:
• Impact analysis
• Regression optimization
• Defect clustering and analysis
• Test productivity improvement
• Establish testing KPIs and quality metrics to measure effectiveness and automation adoption.
• Develop comprehensive testing plans covering:
• System Testing
• System Integration Testing (SIT)
• End-to-End Business Process Testing
• Regression Testing
• Performance & Volume Testing
• User Acceptance Testing (UAT)
• Operational Readiness Testing
• Cutoff & Rollback Validation Testing
• Define test environments, test data strategy, and environment governance.
• Ensure test coverage aligns with migration risk profiles and business priorities.

Job description

• Define and own the overall migration testing strategy, framework, roadmap, and governance model.
• Establish testing standards, quality gates, entry/exit criteria, and release readiness processes.
• Develop a risk-based testing methodology aligned to migration waves and deployment milestones.
• Establish traceability between migration changes, risks, business requirements, and test coverage.
• Provide executive reporting on testing progress, quality metrics, risks, and release readiness.

Risk-Based Testing & Change Impact Assessment

• Lead application, infrastructure, and operational impact assessments to understand migration-related changes.
• Develop a risk-ranking framework to classify components based on:
• Code modifications
• JCL conversion impacts
• CICS transaction changes
• Security changes
• Operational and scheduler impacts
• Business criticality
• Define testing depth and coverage based on migration risk and business impact.
• Optimize testing effort by focusing on high-risk and high-business-value components.
• Maintain a Migration Testing Risk Register and Quality Heat Map.
• Identify migration-specific risks and ensure mitigation plans are incorporated into testing activities.
• Define the overall testing tool architecture and strategy for the migration program.
• Evaluate, select, and implement testing tools supporting:
• Test management
• Regression testing
• Performance testing
• Reporting and dashboards
• Establish automated validation approaches for batch jobs, file comparisons, data reconciliation, and migration verification.
• Design reusable automation frameworks and testing accelerators.
• Identify opportunities to leverage AI-enabled testing capabilities for:
• Impact analysis
• Regression optimization
• Defect clustering and analysis
• Test productivity improvement
• Establish testing KPIs and quality metrics to measure effectiveness and automation adoption.

Test Planning & Design

• Develop comprehensive testing plans covering:
• System Testing
• System Integration Testing (SIT)
• End-to-End Business Process Testing
• Regression Testing
• Performance & Volume Testing
• User Acceptance Testing (UAT)
• Operational Readiness Testing
• Cutoff & Rollback Validation Testing
• Define test environments, test data strategy, and environment governance.
• Ensure test coverage aligns with migration risk profiles and business priorities.