Thursday, July 2, 2026

Need: Senior AS/400 COBOL Developer for San Antonio, TX

Job Title: Senior AS/400 COBOL Developer
Location: San Antonio, TX (100% Onsite)
Duration: 12+ Months
Experience Required: 15+ Years (Mandatory)

Mandatory Requirements

  • 15+ years of hands-on AS/400 (IBM iSeries) development experience.
  • Strong expertise in:
    • AS/400 (IBM iSeries)
    • COBOL/400
    • RPG/RPGLE
    • DB2 on IBM i
    • SQL Development and Performance Tuning
  • Extensive experience supporting and modernizing legacy enterprise applications.
  • Strong troubleshooting and production support experience in batch and interactive applications.

Job Summary

We are seeking a highly experienced Senior AS/400 COBOL Developer with 15+ years of expertise in IBM iSeries application development and support. The ideal candidate will be responsible for developing, maintaining, and modernizing business-critical AS/400 applications while providing deep technical leadership across legacy systems and modernization initiatives.

This role requires extensive experience in COBOL, RPG/RPGLE, DB2 databases, SQL optimization, batch processing, and enterprise application support within IBM i environments.


Required Skills

IBM i / AS400 Technologies

  • AS/400 (IBM iSeries)
  • IBM i Operating System
  • COBOL/400
  • RPG
  • RPGLE
  • CL Programming
  • IBM i Development Tools

Database Technologies

  • DB2 on IBM i
  • SQL Development
  • Advanced SQL Queries
  • SQL Performance Tuning
  • Database Design
  • Data Modeling
  • Query Optimization
  • Database Troubleshooting

Application Development & Support

  • Legacy Application Development
  • Enterprise Application Maintenance
  • Batch Processing
  • Interactive Applications
  • Production Support
  • System Integration
  • Code Enhancement
  • Defect Resolution

Development Methodologies & Tools

  • Agile Methodologies
  • Scrum
  • Kanban
  • CI/CD Processes
  • IBM i Deployment Processes
  • Version Control
  • Technical Documentation

Productivity Tools

  • Microsoft Office Suite
  • Documentation Tools
  • Office Productivity Applications

Key Responsibilities

Application Development & Maintenance

  • Develop, maintain, and support business-critical AS/400 applications.
  • Design and implement solutions using:
    • COBOL/400
    • RPG
    • RPGLE
    • DB2
    • SQL
  • Enhance existing applications and develop new functionality as required.
  • Ensure application stability, performance, and maintainability.

Database Development & Administration

  • Design and maintain DB2 database structures and data models.
  • Develop and optimize complex SQL queries and programs.
  • Analyze and resolve database performance issues.
  • Implement best practices for data integrity and database performance optimization.

Batch & Interactive Application Support

  • Analyze, debug, and resolve complex issues involving:
    • Batch Processing Systems
    • Interactive Applications
    • Production Incidents
    • System Performance Problems
  • Perform root cause analysis and implement long-term solutions.
  • Ensure business-critical applications remain highly available and reliable.

System Modernization & Integration

  • Collaborate with modernization teams to integrate AS/400 applications with distributed and modern platforms.
  • Support application modernization and migration initiatives.
  • Design integration solutions between legacy and contemporary systems.
  • Participate in architectural discussions and technology transformation efforts.

DevOps & Delivery Processes

  • Support continuous integration and deployment processes within IBM i environments.
  • Participate in Agile delivery methodologies including:
    • Scrum Ceremonies
    • Sprint Planning
    • Daily Standups
    • Kanban Workflows
  • Support release management and deployment activities.

Documentation & Knowledge Sharing

  • Create and maintain:
    • Technical Documentation
    • System Design Documents
    • Database Documentation
    • Support Procedures
    • Operational Runbooks
  • Provide technical mentoring and knowledge transfer to team members.
  • Support documentation and compliance initiatives.

Required Qualifications

  • Bachelor's Degree in:
    • Computer Science
    • Information Technology
    • Engineering
    • Related Technical Discipline
    • Equivalent Professional Experience
  • 15+ years of hands-on experience in:
    • AS/400 (IBM iSeries)
    • COBOL/400 Development
    • RPG/RPGLE Development
    • DB2 Database Development
    • SQL Programming
    • Legacy System Support
  • Strong expertise in:
    • IBM i Architecture
    • Batch Processing Systems
    • Interactive Applications
    • Database Design and Optimization
    • Production Support and Troubleshooting
  • Proven experience integrating legacy systems with modern enterprise applications.
  • Experience working within Agile development environments.
  • Excellent analytical, problem-solving, and communication skills.

Preferred Qualifications

  • Experience leading legacy modernization initiatives.
  • Experience integrating AS/400 applications with APIs and distributed systems.
  • Knowledge of IBM i DevOps and CI/CD tools.
  • Experience within highly regulated enterprise environments such as:
    • Banking
    • Insurance
    • Manufacturing
    • Healthcare
    • Retail
  • Experience mentoring development teams and providing technical leadership
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Thanks & Regards
Ishita Bali
Novia Infotech LLC
4421 Avenida Ln, McKinney, TX 75070
Email: ishita.b@noviainfotech.com

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