> Markdown version of [/jobs/ext/2752386-mainframe-developer-rpg-as400-cobol-expert](https://www.wearedevelopers.com/jobs/ext/2752386-mainframe-developer-rpg-as400-cobol-expert). 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).

---

# Mainframe Developer - Rpg/As400/Cobol Expert

- **Company:** Kenos Technology
- **Location:** Oviedo, Spain
- **Contract:** Permanent contract
- **Skills:** IBM System I, COBOL (Programming Language), IBM DB2, Relational Databases, Mainframes, Oracle (Applications), Sql Optimization
- **Published:** September 6, 2026
- **Apply:** https://www.buscojobs.com.es/mainframe-developer-rpg-as-400-cobol-expert-en-oviedo-ID-369658961

## About the Role

Requisitos: al menos 3 años de experiencia y dominio de bases de datos relacionales (DB2/Oracle).

## Description

Kenos Technology busca un Mainframe Developer con experiencia en RPG, AS400 y COBOL para un proyecto estable y con futuro.Se valora capacidad de análisis, visión técnica y autonomía en el trabajo diario.Funciones: análisis de requisitos, desarrollo y mantenimiento de aplicaciones AS400, optimización de SQL y colaboración para asegurar calidad y plazos.Requisitos: al menos 3 años de experiencia y dominio de bases de datos relacionales (DB2/Oracle).#J-*****-Ljbffr


## 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)
- [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option)
- [Cloud as the new mainframe: why the cloud hype does not reflect the dev reality](https://www.wearedevelopers.com/videos/797-cloud-as-the-new-mainframe-why-the-cloud-hype-does-not-reflect-the-dev-reality)
- [Migrating from COBOL with AI: A Moonshot Demo](https://www.wearedevelopers.com/videos/1531-migrating-from-cobol-with-ai-a-moonshot-demo)
- [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)

## Related Articles

- [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [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)
- [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)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)