> Markdown version of [/jobs/ext/1234104-as400-developer-support](https://www.wearedevelopers.com/jobs/ext/1234104-as400-developer-support). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # AS400 Developer & Support - **Company:** Crackajack LLC - **Location:** Renton, WA, United States - **Salary:** $104,100.0 - $146,630.0 - **Contract:** Permanent contract - **Skills:** IBM System I, Batch Processing, Databases, IBM DB2, Software Debugging, IBM RPG (Programming Language), Performance Tuning, SQL Stored Procedures, Systems Integration - **Published:** July 11, 2026 - **Apply:** https://www.careerjet.com/jobad/us43a771202f1fb03a7935dd46f290fe1d ## About the Role * Strong experience with AS400 (IBM i) systems * Proficiency in RPG (RPGLE / Free Format RPG) * Hands-on experience with DB2 database (queries, stored procedures, performance tuning) * Experience in application support and incident management * Good understanding of system integrations and batch processing * Strong debugging and problem-solving skills ## Description * Develop, maintain, and enhance applications on AS400 (IBM i) platform * Write and optimize programs using RPG (RPG III/IV, RPGLE, Free Format RPG) * Design, query, and manage DB2 databases * Provide L2/L3 production support, troubleshooting and resolving system issues * Perform root cause analysis and implement long-term fixes * Collaborate with business and technical teams for requirement analysis and enhancements * Support system upgrades, patches, and performance tuning initiatives * Ensure documentation of processes, code changes, and support activities ## Related Videos - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Hands-on Journey to Quantum Computing with IBM](https://www.wearedevelopers.com/videos/137-hands-on-journey-to-quantum-computing-with-ibm) - [Can This Elephant Dance? IBM Bob and the Future of AI-First Software Development](https://www.wearedevelopers.com/videos/100256-can-this-elephant-dance-ibm-bob-and-the-future-of-ai-first-software-development) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) ## Related Articles - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Dev Digest 162: AI careers, MCP, AWS best practices & floppy sweaters](https://www.wearedevelopers.com/magazine/571-dev-digest-162-ai-careers-mcp-aws-best-practices-floppy-sweaters) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 156: Enterprise dead, all about Bluesky and <img> CC theft!](https://www.wearedevelopers.com/magazine/552-dev-digest-156-enterprise-dead-all-about-bluesky-and-img-cc-theft) - [Dev Digest 180: AI Code Crashes, Rooting Copilot and a 200 LOC AI agent](https://www.wearedevelopers.com/magazine/613-dev-digest-180-ai-code-crashes-rooting-copilot-and-a-200-loc-ai-agent)