Mainframe Developer

About the Role :

We are seeking a highly skilled COBOL / DB2 SDET with strong automation and healthcare payer experience to support testing of critical mainframe and distributed applications. The ideal candidate will have expertise across mainframe technologies, DB2 databases, APIs, batch systems, and test automation frameworks.

Key Responsibilities :

- Design and execute test strategies for complex mainframe and distributed applications.

- Validate COBOL, DB2, JCL, CICS, IMS, and batch processing workflows.

- Develop automation frameworks for API, database, and integration testing.

- Validate end-to-end business processes across mainframe and modernized applications.

- Perform data reconciliation and database validation across multiple platforms.

- Test inbound and outbound interfaces, file transfers, and EDI transactions.

- Support release testing, production validation, and defect triage activities.

- Collaborate with developers, business analysts, architects, and product teams.

- Participate in automation initiatives to improve quality and testing efficiency.

- Develop test data management and validation solutions for large-scale systems.

Required Skills & Qualifications :

Mainframe Technologies :

- COBOL, DB2, JCL, CICS, VSAM, IMS (preferred)

Testing & Automation :

- Automation of APIs, databases, and integration layers.

- Selenium, Rest Assured, Cucumber BDD, Postman, Service Virtualization tools.

Database & Data Validation :

- Advanced DB2 SQL skills, data migration and reconciliation testing.

Integration & Messaging :

- MQ Series / IBM MQ, Kafka (preferred), file-based integrations, batch processing systems.

Performance & DevOps :

- JMeter, Jenkins, Git, CI/CD pipelines, Test Management tools.

Agile Delivery :

- Agile/Scrum environments, strong analytical and troubleshooting skills.

Preferred Qualifications :

Healthcare Payer Experience :

- Claims Processing, Membership & Enrollment, Benefits Configuration, Provider Management, Care Management, Pharmacy Benefits, EDI Transactions (834, 835, 837, 270/271), Medicare/Medicaid Programs, FHIR and Interoperability initiatives.

Nice to Have :

- Java and Spring Boot exposure, API Automation, Cloud migration testing, Mainframe modernization projects, PEGA integration testing, Quality Engineering transformation programs.

Skills

COBOL, DB2, JCL, CICS, VSAM, Selenium, Cucumber Testing, RestAssured, Mainframe