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Application Development AS400 Developer / Administrator

Varmoda

  • Oklahoma City, OK
  • 5 days ago

    Highlights

    The successful candidate will serve as the primary technical resource responsible for supporting RPG-based applications, DB2 databases, application security, data integrations, job scheduling, and migration preparation activities to support future modernization efforts. Our five-layer architecture — Salesforce (Engagement), Databricks (Data), ServiceNow (Orchestration), Pega (Decisioning), and Oracle HR (Capacity) — puts data at the common thread of every solution we build for federal agencies and the citizens they serve.

    Numbers & Facts

    LocationOklahoma City, OK

    Description

    Position Summary Varmoda is seeking an experienced AS400 Developer / Administrator to support and maintain critical legacy applications and databases within the agency's IBM AS/400 (IBM iSeries) environment. This role will provide application development, maintenance, administration, database management, integration support, and modernization assistance for business-critical systems. The successful candidate will serve as the primary technical resource responsible for supporting RPG-based applications, DB2 databases, application security, data integrations, job scheduling, and migration preparation activities to support future modernization efforts.

    Key Responsibilities

    • Maintain, enhance, and support legacy business applications developed using:
      • RPG
      • RPG III
      • RPG IV (ILE RPG)
      • RPGLE
      • CL (Control Language)
    • Troubleshoot production issues, batch processing failures, and user-reported defects.
    • Modify application logic to support business, regulatory, licensing, and compliance changes.
    • Perform application debugging, testing, deployment, and post-implementation validation.
    • Serve as the primary point of contact between OID and the hosting provider.
    • Coordinate:
      • Operating System Maintenance
      • Patch Management
      • Database Utilities
      • Environment Changes
    • Manage application security including:
      • User Profiles
      • Object-Level Security
      • Access Controls
      • Audit Log Review (QAUDJRN)
    • Support:
      • Job Queues
      • Active Subsystems
      • Application Scheduling Processes
    • Coordinate backup, recovery, disaster recovery testing, and restoration validation activities.
    • Administer and maintain DB2 for i databases.
    • Develop and optimize SQL queries and indexes to improve application performance.
    • Perform database troubleshooting, maintenance, and performance tuning.
    • Support secure file transfer processes using:
      • FTP
      • SFTP
    • Maintain integrations with internal and external partner systems.
    • Partner with database administrators, infrastructure teams, and cloud architects.
    • Support legacy data extraction, cleanup, archival, and migration activities.
    • Document:
      • System Architecture
      • Data Flows
      • Database Schemas
      • Application Dependencies
      • Integration Processes
    • Assist with modernization initiatives and migration planning activities.

    Required Qualifications

    • Minimum 5 years of hands-on experience supporting IBM AS/400 (IBM i / iSeries) environments.
    • Strong development experience with:
      • RPG IV (ILE RPG)
      • RPGLE
      • CL (Control Language)
      • SQL
    • Experience administering and supporting IBM i business applications.
    • Experience with:
      • DB2 for i
      • Query Development
      • Database Optimization
      • Performance Tuning
    • Experience managing:
      • User Profiles
      • Security Permissions
      • Object Authorities
      • System Auditing
    • Experience troubleshooting and supporting production systems.
    • Experience supporting:
      • FTP
      • SFTP
      • Automated File Transfers
    • Experience working in hosted or managed AS400 environments.
    • Strong analytical and problem-solving capabilities.
    • Excellent communication and documentation skills.

    Preferred Qualifications

    • Experience working with external hosting providers and managed infrastructure environments.
    • Experience coordinating disaster recovery and backup validation activities.
    • Experience supporting modernization or cloud migration initiatives.
    • Experience documenting legacy systems and technical architectures.
    • Familiarity with enterprise integration and data migration strategies.
    • Experience supporting government, regulatory, insurance, or public-sector environments.

    Required Technical Skills

    • RPGLE
    • RPG IV (ILE RPG)
    • CL (Control Language)
    • SQL on DB2 for i
    • IBM AS/400 / IBM iSeries
    • FTP / SFTP
    • Application Administration
    • Security Management
    • Job Queue Management
    • Legacy Application Support
    • DB2 Performance Tuning

    Preferred Certifications

    • IBM i Administration Certification
    • IBM DB2 Certification
    • RPG Programming Certification
    • ITIL Foundation Certification

    About Varmoda

    Varmoda is a federal IT solutions provider founded in 2020 and headquartered in McLean, Virginia, delivering citizen-centric public services across Financial Assistance, Public Benefits, and Security & Defense domains. Our five-layer architecture — Salesforce (Engagement), Databricks (Data), ServiceNow (Orchestration), Pega (Decisioning), and Oracle HR (Capacity) — puts data at the common thread of every solution we build for federal agencies and the citizens they serve. Varmoda holds CMMI Maturity Level 3, ISO 9001, ISO 20000, and ISO 27001 certifications, and is recognized as a V3 veteran-friendly employer.

    Why Varmoda

    • Growth opportunity within a fast-scaling federal IT firm
    • Direct impact on citizen-facing federal programs
    • Competitive benefits including 401k, health insurance, Paid Time Off, Life Insurance and others — customize per role/location
    • Veteran-friendly (V3) workplace culture

    Equal Employment Opportunity

    Varmoda is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.



    Varmoda and its affiliated entities never request payment, banking details, or financial information from candidates during hiring. All legitimate communication comes from a varmoda.com address or JobDiva — report suspicious contact to

    contracts@varmoda.com

    . Varmoda and its affiliates are Equal Opportunity Employers; all qualified applicants are considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, age, or any other legally protected characteristic.

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