Mainframe Testing

Req ID: 341384

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.

We are currently seeking a Mainframe Testing -deposit systems to join our team in Bangalore, Karnātaka (IN-KA), India (IN).

We are seeking an experienced Test Analyst (Manual/Automation) with strong expertise in deposit systems and experience testing COBOL-based applications. The ideal candidate will be responsible for validating deposit workflows, batch processes, and core banking functionalities, ensuring accuracy, compliance, and system stability. This role requires a combination of banking domain knowledge and technical testing skills.

Key Responsibilities

• Design, develop, and execute manual and automated test cases for deposit system applications built on COBOL.
• Perform functional, regression, integration, and UAT testing across deposit and core banking platforms.
• Validate deposit account management, transactions, interest calculations, and batch processing.
• Test COBOL programs, JCL scripts, batch jobs, and data file outputs.
• Build and maintain automation frameworks (Selenium, Java, Python, TestNG, Cucumber, or similar) for regression and repetitive test scenarios.
• Write and execute SQL queries for backend data validation.
• Collaborate with business analysts, deposit operations teams, and COBOL developers to define effective test scenarios.
• Track and manage defects using test management tools (Jira, HP ALM, TestRail, etc.).
• Support system upgrades, COBOL migrations, and deposit platform enhancements.
• Provide detailed test evidence, documentation, and reports for stakeholders and audits.

Required Skills & Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• 4-8 years of experience as a Test Analyst/QA Engineer in banking or financial services.
• Strong knowledge of deposit systems, core banking operations, and account management.
• Hands-on experience testing COBOL-based applications and batch processing.
• Proficiency in manual testing and automation frameworks (Selenium, Java/Python, TestNG, Cucumber).
• Solid SQL skills for data validation and reconciliation.
• Experience with test management and defect tracking tools (Jira, HP ALM, TestRail, etc.).
• Good understanding of SDLC, Agile, and Waterfall methodologies.

Preferred/Good to Have

• ISTQB or similar QA certification.
• Experience with API testing (Postman, RestAssured).
• Familiarity with mainframe tools
• Exposure to CI/CD pipelines (Jenkins, GitLab CI).
• Knowledge of regulatory and compliance requirements in core banking.

About NTT DATA

NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. Visit us at

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