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# Senior Mainframe Developer

- **Company:** AJACE Inc
- **Location:** McLean, VA, United States
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** Application Programming Interfaces (APIs), Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Software Debugging, Distributed Systems, Endevor, Job Control Language (JCL), IBM Mainframe, Job Scheduling, Mainframes, Performance Tuning, Systems Integration, Virtual Storage Access Methods, Transaction Processing (Computing), Software Troubleshooting, File-aid, Mainframe Programming, Software Version Control
- **Published:** November 11, 2026
- **Apply:** https://www.dice.com/job-detail/d4a8371c-3d31-4444-b6e5-fa26a7378fe8

## About the Role

Strong hands-on development experience in COBOL, JCL, SOC, VSAM, DB2, and CICS in IBM Mainframe environments.
Strong understanding of Consumer Banking / Retail Banking, including Deposits, Checking & Savings Accounts, Payments, Account Servicing, and Transaction Processing.
Experience in developing, enhancing, debugging, and maintaining mainframe batch and online applications.
Hands-on experience with JCL job scheduling, batch processing, file handling, abend resolution, and performance optimization.
Experience with mainframe utilities, debugging tools, and source code management tools such as Endevor, Changeman, File-AID, and Xpediter.
Ability to analyze business requirements, perform impact assessments, develop technical specifications, and deliver high-quality solutions.
Experience integrating mainframe applications with distributed systems, APIs, and digital banking platforms.
Strong troubleshooting, production support, root cause analysis, and incident resolution skills.
Experience working in Agile delivery environments and collaborating with business analysts, architects, and cross-functional teams.

Preferred Qualifications

Prior experience working with US banks or credit unions.
Knowledge of core banking systems such as Hogan or other mainframe-based banking platforms.
Experience in deposit processing, transaction posting, account maintenance, and end-of-day / end-of-month batch processing.
Familiarity with mainframe modernization and integration initiatives.

Mandatory Skills: COBOL, JCL, SOC, Mainframe Development, Consumer Banking Domain.