> Markdown version of [/jobs/ext/1651382-as-400-senior-developer](https://www.wearedevelopers.com/jobs/ext/1651382-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 - **Location:** Dallas, TX, United States - **Experience:** Expert - **Salary:** $120,000.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Access, IBM System I, Databases, Database Design, Database Development, Linux, IBM RPG (Programming Language), Linux System Administration, Progress OpenEdge (IDE), Query Optimization, Software Engineering, SQL Stored Procedures, Software Repository, Enterprise Software Applications, Information Technology, Software Version Control, Visual Basic Language, Legacy Systems - **Published:** July 8, 2026 - **Apply:** https://hubinternational.jobs/dallas-tx/as400-senior-developer/87411438c323408abb198968464ec5ec/job/ ## 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 application development + Hands-on experience with OpenEdge Progress database and 4GL + Solid understanding of Linux operating systems + Excellent communication skills with ability to translate technical concepts for business users + Self-motivated with ability to work independently with minimal supervision + Strong problem-solving and analytical skills, + Experience with Insurance claim systems and workflows + Understanding of insurance industry business processes + Knowledge of modernization strategies for legacy systems + Education: Bachelor's degree in computer science, Information Technology, or related field, or equivalent work experience, Required Experience: 5-7 years of relevant experience Required Travel: Negligible Required Education: Bachelor's degree (4-year degree) ## 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 + Perform system administration tasks in Linux environments + Document technical specifications and maintain code repositories ## 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) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Can This Elephant Dance? 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