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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Development AS400 Developer - **Company:** Resourcesoft, Inc. - **Location:** Oklahoma City, OK, United States - **Experience:** Expert - **Contract:** Temporary to permanent - **Skills:** Db2400, IBM System I, Computer Programming, Information Technology Consulting, Databases, Data Mining, Relational Databases, File Transfer, IBM RPG (Programming Language), Information Technology Audit, Software Engineering, SQL Databases, Subsystems, RPL (Programming Language), Freeform SQL, File Transfer Protocol (FTP), Enterprise Software Applications, Control Language - **Published:** September 13, 2026 - **Apply:** https://www.careerjet.com/jobad/us34be2d83eb566e426187058b0ff6d124 ## About the Role 5 or more years of experience in enterprise application development and technical administration on IBM AS/400 (IBM iSeries) platforms. Proficiency in programming with RPG IV (ILE RPG), RPGLE, Control Language (CL), and SQL on DB2 for i. Experience with managing IBM i subsystems, job queues, user profile authorities, and system audit journals (QAUDJRN). Experience in querying, managing, and tuning DB2 for i relational databases to ensure high system responsiveness. Experience with automating secure file transfers and external system interfaces utilizing SFTP and FTP protocols. Experience in collaborating with third-party hosting providers and cloud architects on database extraction and modernization efforts. Excellent communication skills to coordinate operational maintenance schedules and translate complex legacy logic for technical teams., Job Overview: Requirement/Must Have: Minimum of 5+ years of hands-on experience in AS400 (IBM i, iSeries) application development and support. Exceptional proficiency in RPG IV… + 23 hours ago ## Description Maintain, modify, and optimize custom legacy application code written in RPG, RPGLE, and Control Language (CL). Troubleshoot batch runtime anomalies, resolve operational defects, and update system logic to meet regulatory mandates. Manage and tune DB2 for i relational databases, optimizing complex SQL queries and underlying database indexes. Administer application-level security, configure user profiles, and inspect system audit journals to maintain platform integrity. Supervise active job queues, operational subsystems, and automated application schedulers to ensure reliable processing. Support secure, automated data exchanges and interface pipelines linking the hosted partition to external downstream systems. Document legacy system flows, schemas, and dependencies to facilitate seamless data extraction and cloud migration initiatives. Founded in 1999, Resourcesoft, Inc. is a leading Technology Consulting and Professional Services organization. Headquartered in Marlborough, MA, the company serves the technology needs of its clients nationwide. Resourcesoft has often been recognized by prominent rating agencies for its exemplary growth and stability. With over two decades of industry experience, the Company has evolved as a front runner in enabling project optimization. We partner with leading organizations to provide technology solutions within the financial, insurance, education, government, publishing, healthcare and pharmaceutical domains. We take pride in mentoring a workforce that is well positioned to respond to the emerging IT trends and needs. With the employees at the crux of every business endeavor, our success is driven by our expertise in pairing the right talent with the best jobs in the technology sector. We forge long term, personalized relationships with our employees to advance their career to the next level. We engage them in technology centric client projects that provide opportunities for them to evolve, innovate and deliver world class products and services. Our career opportunities offer challenging assignments and exposure to emerging and cutting edge technologies. We are committed to providing our employees with the tools necessary to accelerate their career progression, while maintaining a healthy, work-life balance. We are deeply committed to providing a workplace ambience that is both challenging and fulfilling. ## Related Videos - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Develop on Windows, Deploy on Red Hat Enterprise Linux](https://www.wearedevelopers.com/videos/1600-develop-on-windows-deploy-on-red-hat-enterprise-linux) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) ## Related Articles - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [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) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [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)