> Markdown version of [/jobs/ext/1747458-as-400-senior-developer](https://www.wearedevelopers.com/jobs/ext/1747458-as-400-senior-developer). 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). --- # AS/400 Senior Developer - **Company:** HUB International Limited - **Location:** Kansas City, MO, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Access, IBM System I, Databases, Database Design, Database Development, IBM RPG (Programming Language), Progress OpenEdge (IDE), Query Optimization, SQL Stored Procedures, Enterprise Software Applications, Software Version Control, Visual Basic Language, Legacy Systems - **Published:** July 8, 2026 - **Apply:** https://www.kansasworks.com/jobs/13608331 ## About the Role + Strong proficiency in AS/400 (IBM i) and RPGLE programming + Strong SQL knowledge including query optimization, stored procedures, and database design. + Experience with MS-Access database development and management + Working knowledge of Visual Basic for app ## Description We are seeking an experienced Application Developer with strong expertise in legacy systems and database technologies to join our team. The ideal candidate will work closely with business stakeholders to maintain, enhance, and support critical enterprise applications., + Design, develop, and maintain applications using AS/400 (IBM i) and RPGLE programming + Drive IBM i modernization initiatives by championing modern development tooling (VS Code with Code for IBM i, RPG/CLP editing) in place of traditional green-screen tools, integrating AI-assisted development practices where applicable, and migrating source code management to Git/GitHub to support version control, branching, and collaborative development workflows on the AS/400 platform. + Develop and support database solutions using MS-Access and OpenEdge Progress + Create and maintain Visual Basic applications and integrations + Work directly with business users to gather requirements, provide solutions, and deliver technical support + Troubleshoot and resolve application issues with minimal supervision ## Related Videos - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [How to TDD in legacy code](https://www.wearedevelopers.com/videos/309-how-to-tdd-in-legacy-code) - [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) - [Hands-on Journey to Quantum Computing with IBM](https://www.wearedevelopers.com/videos/137-hands-on-journey-to-quantum-computing-with-ibm) - [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) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)