Mainframe Developer
PeopleServe
Responsibilities:
- Design, develop, maintain, and enhance enterprise mainframe applications supporting critical business functions.
- Develop and support applications using COBOL, JCL, CICS, DB2, VSAM, and Syncsort.
- Analyze and resolve complex production issues, perform root cause analysis, and implement long-term solutions.
- Support both batch and online transaction processing while ensuring high availability and operational stability.
- Collaborate with distributed engineering teams developing Java, Spring Boot, REST APIs, and AWS-based applications.
- Participate in application modernization initiatives, API integration, and cloud transformation efforts.
- Perform code reviews, testing, deployment support, and production readiness activities.
- Create and maintain technical documentation, operational runbooks, and knowledge transfer materials to reduce key-person dependency.
- Partner with engineering teams to continuously improve application performance, reliability, monitoring, and operational perfection.
- 8+ years of enterprise Mainframe development experience.
- Strong expertise in:
- COBOL
- JCL
- CICS
- DB2 (Native SQL and COBOL Stored Procedures)
- VSAM
- Syncsort
- Experience designing and integrating REST APIs using XML and JSON.
- Experience supporting high-volume, mission-critical production systems.
- Strong troubleshooting, analytical, and problem-solving skills.
- Experience working in Agile development environments.
- Working knowledge of Java, Spring Boot, and AWS.
- Experience with API testing tools such as Insomnia or Postman.
- Experience integrating mainframe applications with distributed systems.
- Familiarity with CI/CD and DevOps practices.
- Experience supporting application modernization and cloud migration initiatives.
- Excellent communication, collaboration, and documentation skills.
Vacancy posted 2 days ago
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