Workstate is looking for a Senior iSeries / AS400 RPG Developer to join our team for an immediate contract engagement supporting critical Order Management operations. In this role, you will develop, maintain, troubleshoot, and enhance applications running within an IBM iSeries / AS400 environment.

The primary focus of the role will be supporting the CW Direct platform, an iSeries-based Order Management System. Direct CW Direct experience is helpful but not required. The ideal candidate will bring strong senior-level experience with IBM iSeries / AS400 systems and RPG development and will be comfortable becoming productive quickly within an established legacy application environment.

You will collaborate with technical and business stakeholders to investigate production issues, implement enhancements, maintain existing functionality, and support reliable Order Management operations in a fast-paced retail and e-commerce environment.

This is a 3–6 month contract opportunity with an immediate need.

This position is remote-friendly and available to residents of Colombia or Argentina with the right to work in their country of residence.

Requirements

The ideal candidate will typically have significant professional software development experience, including senior-level experience working with IBM iSeries / AS400 environments, and will have demonstrated many of the following skills:

• Strong professional experience developing and supporting applications on IBM iSeries / AS400 platforms
• Advanced proficiency with RPG programming, including RPG IV and/or RPGLE
• Experience analyzing, maintaining, debugging, and enhancing existing RPG applications
• Strong experience with DB2 for i, including SQL, database files, queries, and data management
• Experience working with legacy enterprise applications where documentation may be limited
• Ability to understand unfamiliar application code, business logic, data structures, and system dependencies with minimal ramp-up time
• Experience troubleshooting production issues and performing root-cause analysis
• Familiarity with Order Management Systems or similar transaction-oriented enterprise applications
• Understanding of retail, e-commerce, fulfillment, inventory, or order-processing workflows
• Ability to work independently while collaborating effectively with technical and business stakeholders
• Experience working within established production environments where reliability and operational continuity are critical
• Familiarity with source control, software release processes, and structured development practices
• Ability to communicate technical issues and proposed solutions clearly to both technical and non-technical stakeholders
• B2-level English competency or higher, with the ability to communicate effectively in professional settings, both verbally and in writing

Nice-to-have skills:

• Direct experience with the CW Direct Order Management platform
• Experience supporting retail or e-commerce Order Management Systems
• Experience with high-volume order processing, fulfillment, inventory, or warehouse-related systems
• Familiarity with IBM i administration and operational tooling
• Experience modernizing, integrating with, or extending legacy IBM i applications
• Experience integrating iSeries applications with external systems, APIs, or modern application platforms
• Experience working in short-term consulting engagements where rapid onboarding and independent problem solving are important