Senior RPG Developer

Oldcastle BuildingEnvelope • Dallas, TX

8d

About The Position

We are seeking a Senior RPG Developer to provide technical leadership and hands-on development for our IBM i (AS/400) based ERP platforms. This role is focused on modernizing legacy RPG applications using contemporary development practices, structured refactoring techniques, and AI-assisted development tools. The ideal candidate brings deep RPG expertise, mentors others, and helps drive long-term platform sustainability.

Requirements

• 5+ years of RPG ILE development experience (free-form strongly preferred)
• Strong experience with CL, DDS, and DB2 for i
• Deep understanding of IBM i job processing and batch environments
• Proven experience modernizing or refactoring legacy systems
• Familiarity with Git or modern source control workflows
• Exposure to or hands-on experience with AI-assisted coding tools
• Strong technical leadership and mentoring abilities
• Clear communicator with both technical and non-technical audiences
• Analytical, detail-oriented problem solver who can balance legacy support with forward-looking modernization
• Bachelor's degree in Computer Science, Information Systems, or equivalent professional experience

Nice To Haves

• Experience with Infor Infinium
• Background in ERP integrations, EDI, or file-based interfaces
• Familiarity with web services, APIs, SQL-centric design, or service programs
• Experience supporting multi-site ERP environments

Responsibilities

• Lead the design, development, and modernization of RPG ILE applications across our IBM i–based ERP platforms
• Refactor legacy fixed-format RPG into free-form, modular, and service-oriented code
• Use AI-assisted development tools to accelerate code comprehension, refactoring workflows, and documentation
• Establish, document, and champion development standards and best practices across the team
• Partner with business analysts and stakeholders to translate business needs into clean, effective technical solutions
• Design and support integrations, batch jobs, and ERP interfaces
• Perform advanced troubleshooting, root-cause analysis, and production support
• Create and maintain technical documentation that makes life easier for the entire team
• Mentor junior and mid-level developers sharing knowledge, building capability, and raising the bar for the team

Benefits

• Industry competitive benefits at the lowest cost to the employee
• PTO and holidays, including floating holidays
• A pay-for-performance culture with potential for annual raises and bonuses
• Training

What This Job Offers

• Job Type: Full-time
• Career Level: Senior