Sr Mainframe developer/Lead Mainframe developer

iMedhas Consulting Services

Westlake Village, CA, United States

about 1 month ago

Role details

Contract type

Temporary contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

8 years minimum

Compensation

$104,000.0

Working hours

Regular working hours

Job source

www.indeed.com

Tech stack

Application Programming Interfaces (APIs) Customer Information Control System (CICS) Cloud Computing COBOL (Programming Language) Code Review IBM DB2 Software Debugging Embedded SQL Job Control Language (JCL) IBM Mainframe IBM WebSphere MQ Mainframes

+10 more

Performance Tuning Software Engineering SQL Stored Procedures Systems Integration Transaction Processing (Computing) System Availability File-aid Low Latency Data Management Restful APIs

Job description

Design, write, test, and implement complex, highly secure batch and online programs utilizing enterprise COBOL within IBM zOS environments.
Transaction Processing - CICS
Architect and optimize online CICS applications to ensure ultra-low latency, optimal screen data layouts, high-volume throughput, and robust error-handling protocols.
Database Management - DB2
Design efficient relational tables, write high-performance embedded SQL statements, and optimize DB2 store procedures, indexes, and queries to eliminate processing bottlenecks.
Batch Architecture and JCL
Manage, write, and optimize complex JCL (Job Control Language) streams, utilities (IEBGENER, IDCAMS, SORT), and automated batch scheduling systems.
Performance Tuning and Debugging
Perform advanced root-cause analysis, system tracing, and performance tuning using tools like Dump Analysis, Xpediter, InterTest, or File-AID to maintain high availability.
Systems Integration and API Enablement
Partner with Cloud and Integration Architects to expose core mainframe data and transactional logic to modern RESTful APIs via zOS Connect or MQ Series.
Technical Stewardship
Define and enforce coding standards, lead rigorous code reviews, and maintain comprehensive documentation for legacy architectures.

Requirements

8+ years of professional experience in IBM Mainframe software engineering.
Proven track record in high-volume, transactional environments (e.g., Financial Services, Healthcare, Logistics, or Insurance).
Skill Matrix
Domain: Languages
Required Tooling and Concepts: Enterprise COBOL, JCL, Embedded SQL, Assembler/EZTrieve is a plus
Domain: Online Processing
Required Tooling and Concepts: CICS BMS Maps, TS/TD Queues, Program Control, Intercommunication
Domain: Data Management
Required Tooling and Concepts: DB2 Relational design