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# Senior Mainframe Developer

- **Company:** ApTask
- **Location:** Westlake, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Software Debugging, Job Control Language (JCL), IBM WebSphere MQ, Job Scheduling, Mainframes, Performance Tuning, Systems Development Life Cycle, Standard Sql, Software Engineering, Virtual Storage Access Methods, File-aid, Software Version Control, Control M
- **Published:** October 27, 2026
- **Apply:** https://www2.jobdiva.com/portal/?a=4ujdnwqsdebu7m13em5f0pt5dw80o500d7dv9cbq5ebzngb7yk0n43mjtefnbx0d&compid=0/jobs/26530663#/jobs/26530663

## About the Role

* The candidate should have at least 10+ years of experience in below :
 * Experience in defining, developing, and leading an interactive team to implement scalable application solutions
 * Mainframe application development, automation, and support, utilizing COBOL, CICS, DB2, JCL, VSAM, MQ-Series, and SQL
 * Mainframe performance tuning and capacity planning, including ways to reduce I/Os, CPU Time, MSUs, and MIPs, using Strobe, iStrobe, and Platinum Detector
 * file format and comparison using File-AID; version management using Endeavor; debugging and unit testing using Intertest and Abend-AID; and job scheduling using Control-M
 * Knowledge of MQ is a plus.
 * The candidate should have at least 7+ years of work history in application development, preferably in Financial Services or Wealth Management.
 * The applicant should have experience in a structured SDLC (Software Development Life Cycle) process; Analysis, Design, Development, Testing and Production implementation.
 * Knowledge of QA Procedures, guidelines, and controls Skills.
 * Critical thinking, problem solving and business requirements translation.
 * Clear and concise verbal and written communication Development Methodologies
 * Experience/ Qualifications: MCA/B. Tech/Any Graduate with 11 - 16 years of relevant experience