Senior IBM i / AS400 Developer

Job Role: Senior IBM i / AS400 Developer Location: Minneapolis, MN or Denver, CO (Hybrid) Duration: 5-month contract Job Description: We are seeking an experienced Senior IBM i / AS400 Developer to support and modernize the Voyager Plus Over-the-Road (OTR) platform. This role will provide continuity for a business-critical application that supports authorization, business data management, transaction processing, and settlement operations. The ideal candidate will bring deep RPGLE, CL, IBM i, SQL, and production support experience, along with the ability to partner across business and technology teams to sustain current operations while supporting modernization efforts. Required Qualifications · 10 years of hands-on experience programming in RPGLE / Free Format RPG. · 10 years of experience with CL programming on IBM i / AS400 platforms. · Strong experience with screen and subfile development. · Strong working knowledge of embedded SQL within RPGLE applications. · Hands-on experience using IBM Rational Developer for i (RDi). · Experience supporting production applications in a business-critical environment. · Working knowledge of GitLab for source control, branching, merge requests, and deployment workflows. · Experience using ARCAD change management software integrated with GitLab. · Knowledge of Connect:Direct file transfer processes and operational support. · Understanding of digital certificates and secure application connectivity. · Ability to analyze authorization, business data management, settlement, batch, and integration processes. Key Responsibilities · Provide production support and on-call coverage for Voyager Plus (OTR) applications. · Support and enhance authorization, business data management, and settlement system capabilities. · Analyze, troubleshoot, and resolve application defects, production issues, batch/process failures, data issues, and integration concerns. · Develop, test, debug, and maintain clean, efficient, and reliable RPGLE, CL, and SQL-based solutions. · Support MQ connectivity, file transfers, certificate-related issues, deployment readiness, and environment stability. · Lead or support project delivery from requirements through implementation, including estimation, design, development, testing, deployment, and post-production support. · Partner with business stakeholders, technology teams, and cross-functional partners to define requirements and deliver reliable solutions. · Ensure software changes meet quality, functionality, security, compliance, and operational standards. · Support CI/CD, GitLab, and ARCAD-based change management practices to improve release consistency, traceability, and deployment quality. · Maintain documentation, support procedures, and operational knowledge needed for long-term platform sustainability. · Share application, platform, and business process knowledge with the team to reduce support risk and improve resiliency. Preferred Skills · Experience supporting modernization efforts involving legacy IBM i / AS400 applications and modern platforms. · Understanding of Redis-based caching patterns or data synchronization processes. · Experience with CI/CD automation practices for legacy and modernized application delivery. · Familiarity with disaster recovery exercises, outage recovery, and production resiliency practices. · Experience working in environments with high transaction volume, settlement accuracy, and operational reliability requirements. · Ability to mentor junior engineers and support knowledge transfer across the team.