AS 400 / RPG Developer

Job ID: 113786
Location: Montgomery , Alabama  [On-Site]
Category: App/Dev
Employment Type: Contract
Date Added: 10/12/2026
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Role Summary

This position supports and enhances enterprise applications on the IBM AS/400 platform, with a focus on RPG development, application maintenance, and system support. The role develops, modifies, troubleshoots, and optimizes business-critical applications while collaborating with technical teams and business stakeholders to support reliable system performance.

Responsibilities

  • Maintain and enhance business-critical applications running on the IBM AS/400 platform.
  • Develop, modify, and optimize RPG applications using RPG/400, ILE RPG, SQL RPGLE, and related technologies.
  • Troubleshoot and resolve production application issues to support system stability and performance.
  • Perform testing, validation, and quality assurance for application updates and enhancements.
  • Develop and maintain technical documentation, procedures, and system configuration records.
  • Collaborate with technical teams and business stakeholders to support project and operational objectives.
  • Support data analysis, reporting, and system-related business initiatives.
  • Perform system support activities and assist with application and platform upgrades.
  • Develop and maintain screen designs and user interface enhancements using AS/400 Screen Design Aid (SDA).
  • Use query, development, and change management tools to support efficient application development and maintenance.

Qualifications

  • 8+ years of professional RPG programming experience, including RPG/400, ILE RPG, and SQL RPGLE.
  • Recent professional experience supporting applications on IBM AS/400 platforms.
  • Demonstrated experience supporting and troubleshooting business-critical applications.
  • Strong knowledge of systems analysis, application design, development, and maintenance.
  • Strong debugging, analytical, problem-solving, and technical documentation skills.
  • Ability to independently manage complex technical assignments and multiple priorities.
  • Strong written and verbal communication skills with the ability to collaborate effectively with technical and business stakeholders.
  • Relevant education, training, certifications, or equivalent practical experience.
  • Ability to meet applicable employment eligibility requirements for the position.
  • Availability to work on-site as required.

Publishing Pay Range: $40.00 – $50.00 Hourly 

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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