Mainframe Tester

Inventech Info Solutions; Hyderabad, Chennai District, Bengaluru; Hybrid; INR 900,000 - 1,500,000; Full time

Job summary

Inventech Info Solutions is seeking a Mainframe Test Engineer to validate COBOL/JCL/DB2/CICS based mainframe applications. The role focuses on functional, integration, regression and batch testing, with emphasis on backend validation and defect triage.

Responsibilities include creating test scenarios, executing tests, analyzing abends, and coordinating with development teams for issue resolutions. Familiarity with JIRA/ALM and SDLC/STLC is required.

Qualifications

• Mainframe testing experience.
• Proficiency in COBOL, JCL, DB2/SQL, VSAM, and CICS.
• Experience with functional, integration, regression and batch testing.
• Familiarity with SDLC and STLC.

Responsibilities

• Analyze business requirements and prepare test scenarios/cases.
• Execute functional, integration, system, regression and batch testing.
• Test mainframe applications involving COBOL, JCL, DB2, VSAM, and CICS.
• Validate batch jobs, job streams, RCs, datasets and outputs.

Skills

Mainframe testing

COBOL

JCL

DB2 SQL

VSAM

CICS

TSO ISPF

Batch processing

JIRA ALM

SDLC STLC

Tools

Endevor Changeman

CA7

Job description

We are looking for a Mainframe Test Engineer with experience in testing applications running on IBM mainframe environments. The candidate should be comfortable with COBOL, JCL, DB2, VSAM, and CICS and have hands-on experience with functional, integration, regression, and batch testing.

Key Responsibilities

• Analyze business and functional requirements and prepare test scenarios/cases.
• Execute functional, integration, system, regression, and batch testing.
• Test mainframe applications involving COBOL, JCL, DB2, VSAM, and CICS.
• Validate batch jobs, job streams, return codes, datasets, and output files.
• Write and execute SQL queries for DB2 data validation.
• Perform backend/database validation and reconciliation.
• Validate input/output files and reports.
• Analyze abends and job failures and coordinate with development teams for resolution.
• Log, track, and retest defects using tools such as JIRA/ALM.
• Participate in test planning, test execution, defect triage, and release validation.
• Support production validation and post-release testing when required.
• Prepare test execution reports and maintain testing documentation.

Required Technical Skills

• Mainframe testing experience.
• COBOL
• JCL
• DB2 / SQL
• VSAM
• CICS
• TSO/ISPF
• Mainframe batch processing and job monitoring.
• Knowledge of file formats such as sequential files and GDGs.
• Good understanding of SDLC and STLC.
• Defect management tools such as JIRA/ALM.

Good to Have

• Experience with Endevor/Changeman.
• Knowledge of CA7 or other scheduling tools.
• Experience with ETL/data migration testing.
• Automation experience using tools/scripts where applicable.
• Agile/Scrum experience.
• Experience in banking, insurance, or financial-services applications.