Role & responsibilities

Hiring: Technical Lead QA Engineer Mainframe Modernization

Location: Hyderabad, India (Hybrid)

Experience: 8 - 11 Years

Job Type: Full-Time

Mainframe: COBOL, JCL, copybooks, DB2 z/OS, IMS DB/IMS DC, VSAM, CICS, TSO/ISPF

- Mainframe Testing: Parallel run testing, batch equivalence, data migration validation, regression, integration, and cutover testing
- Automation: Robust Python, pytest, pandas, boto3
- Go: Working proficiency in Go for test utilities and data reconciliation
- AWS: S3, Lambda, RDS/Aurora, DMS, IAM, CloudWatch
- Database: Strong SQL skills in DB2 and PostgreSQL
- Tools: CA-7/Control-M, Git, Jira, CI/CD pipelines
- AI-Assisted Testing: Hands-on experience with GitHub Copilot, Claude Code, Cursor, or similar AI tools for test generation, code analysis, and automation
- Data Validation: Fixed-width files, COMP-3 packed decimal, checksums, and field-level reconciliation

Key Responsibilities

- Own QA strategy and test planning for mainframe modernization.
- Analyze COBOL/JCL logic to derive test scenarios and expected results.




- Validate legacy and AWS application outputs through parallel testing.
- Automate data reconciliation and batch validation using Python and Go.
- Ensure migration accuracy, performance, recovery, and cutover readiness.
- Apply AI-assisted testing practices while adhering to data security and compliance requirements.

Required Experience

- 810 years of overall QA experience, including at least 4 years in mainframe testing.
- Hands-on experience with COBOL, JCL, DB2, IMS, VSAM, and CICS.
- Strong Python automation skills and working knowledge of Go.
- Practical experience in mainframe-to-cloud modernization testing.
- Ability to lead QA activities and collaborate with mainframe and cloud engineering teams.

Preferred: Healthcare payer domain experience, claims/eligibility systems, AWS Mainframe Modernization, and X12 EDI/HL7/FHIR knowledge. Interested candidates: Please share your updated resume with [email protected]

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