Mainframe Developer
- Eniac Systems Inc.
1 Days Ago
NA
W2
Athens-AL, Reading-PA
8-10 Years
Required Skills: Mainframe, DB2, Cobol, JCl
Job Description
Mainframe Technologies
IBM z/OS, OS/390, TSO/ISPF, JES2, SDSF
IBM Utilities (REPRO, IDCAMS, IEBGENER, IEBCOPY, IEFBR14)
Programming Languages
COBOL, JCL
Databases
IBM DB2, SPUFI
DB2 Utilities (RUNSTATS, REORG, LOAD, UNLOAD)
File Management & Data Processing
VSAM, Syncsort (DFSORT), File-AID, File Master, Sequential Files
Job Scheduling & Workload Automation
Control-M, Batch Processing, Job Scheduling, Job Monitoring, Job Recovery, Batch Workflow Management
Source Code & Change Management
Endevor, Change Control Management, Version Control, Release Management
ServiceNow (if used for incident/change management)
Debugging & Testing
InterTest, Unit Testing, Integration Testing, Production Validation, Root Cause Analysis (RCA)
Data Warehouse & Analytics
Teradata, Enterprise Data Warehouse (EDW), Data Validation, Data Reconciliation, Data Quality Assurance (QA)
Development Methodologies
Agile, Jira, SDLC, Incident Management, Problem Management, Production Support
Core Competencies
Mainframe Production Support (L2/L3)
Batch Processing & Automation
Incident Resolution & Troubleshooting
Performance Monitoring
Business Continuity & SLA Management
Production Deployments
Cross-functional Collaboration
Offshore Team Coordination
Technical Documentation
Roles & Responsibilities
Provided L2/L3 production support for mission-critical Enterprise Data Warehouse (EDW) applications running on IBM z/OS and Teradata platforms.
Monitored, managed, and recovered batch jobs using Control-M to ensure successful completion of daily, month-end, and post-month processing within established SLA windows.
Supported enterprise data processing for claims, encounters, pharmacy, member, provider, broker, wellness, and financial data across multiple lines of business.
Developed, modified, and maintained COBOL programs, JCL, DB2 queries, and VSAM file processes to support business and operational requirements.
Performed production incident analysis, troubleshooting, and root cause analysis (RCA), implementing permanent corrective actions to minimize recurring issues.
Executed manual job restarts, dependency management, and batch recovery activities to maintain production availability and data integrity.
Validated production data through reconciliation, QA testing, and business verification to ensure accuracy, completeness, and compliance with reporting requirements.
Utilized TSO/ISPF, File-AID, File Master, SPUFI, InterTest, and SyncSort to analyze datasets, debug application issues, and perform file manipulation.
Managed application code migrations and production deployments using Endevor in accordance with Change Management and SDLC processes.
Collaborated with business users, developers, QA teams, DBAs, and infrastructure teams to resolve production issues and support application enhancements.
Coordinated daily operational activities with offshore teams, including work allocation, knowledge transfer, issue tracking, and status reporting.
Participated in Agile Scrum ceremonies, including sprint planning, backlog refinement, daily stand-ups, retrospectives, and release planning using Jira.
Prepared technical documentation, operational procedures, production support runbooks, and knowledge transfer documents.
Ensured compliance with IT governance, change control procedures, security standards, and audit requirements.
Maintained production stability by proactively monitoring system health, identifying performance bottlenecks, and recommending process improvements.
Supported scheduled maintenance, application releases, disaster recovery activities, and on-call production support for critical business applications.
Skills: Mainframe DB2 - Application Development
Experience Required: 8-10
