Role Overview:

We are looking for a Senior QA Engineer with strong Mainframe Testing experience and expertise in Python automation to support mainframe-to-AWS modernization projects. The candidate should have hands-on experience in validating legacy systems, data migration, parallel testing, and modernized cloud workloads.

Key Responsibilities:

- Design and execute functional, regression, integration, performance, and migration testing.

- Analyze COBOL, JCL, PL/I, and mainframe business logic.

- Perform testing across DB2, IMS DB, VSAM, CICS, and batch jobs.

- Conduct parallel testing and validate data migration between Mainframe and AWS.

- Develop automation frameworks using Python (pytest, pandas, boto3) and Go.

- Validate APIs, batch processing, and database integrity.

- Work with AWS services, CI/CD pipelines, and test automation tools.

- Use AI-assisted tools such as GitHub Copilot, Claude Code, or Cursor for test automation and analysis.

- Manage defects,



test reports, and release sign-offs.

Mandatory Skills:

- 57 years of QA experience, including 4+ years in Mainframe Testing.

- Robust knowledge of COBOL, JCL, DB2, IMS DB, VSAM, and CICS.

- Experience with TSO/ISPF, 3270, and CA-7/Control-M.

- Strong Python automation experience with pytest and pandas.

- Working knowledge of Go programming.

- Hands-on AWS knowledge (S3, Lambda, RDS/Aurora, DMS).

- Experience in SQL, data migration validation, and parallel testing.

- Knowledge of Git, Jira, and CI/CD pipelines.

- Practical experience with AI-assisted testing tools.

Good to Have:

- Healthcare / US Insurance domain experience.

- Mainframe-to-cloud modernization experience.

- Knowledge of X12 EDI, HL7, or FHIR.

- AWS or ISTQB certifications.

📌 Senior QA Engineer - Mainframe Modernization (Hyderabad)
🏢 Bellcom Technologies
📍 Hyderabad