Principal Software Engineer - IBM i (AS/400) Connectivity

Overview

Lead development of a native IBM i (AS/400) connectivity agent for Redwood RunMyJobs, integrating IBM i environments with the Redwood platform.

What you'll do

• Design, develop, test, and maintain IBM i connectivity software.
• Build job submission, monitoring, spool file, and message/data queue capabilities.
• Integrate CL/RPG invocation and IBM i APIs using JTOpen/jt400 where applicable.
• Implement IBM i security, authorization, and credential-management integrations.
• Troubleshoot system-level issues across IBM i, Unix, and Java environments.
• Improve solution reliability, performance, security, and scalability.
• Participate in architecture, reviews, testing, release planning, and documentation.

What you'll need

• 10+ years of professional software engineering experience.
• Strong Java 8+ skills.
• Hands-on IBM i integration experience with CL, native APIs, JTOpen/jt400, and DB2 for i.
• Working proficiency in C, including ILE C on IBM i.
• Experience with TCP/IP host-server or RPC-style APIs and connection lifecycle management.
• Strong concurrency and multithreading skills.
• Experience with Git, CI/CD, Docker, Kubernetes, and production AI tools.

Nice to have

• Experience with workload automation products.
• IBM i clustering or high-availability experience.
• Advanced IBM i security knowledge.
• RPG/COBOL or IBM i modernization experience.
• Mainframe or midrange migration experience.

Details

• Remote position in the United States.