> Markdown version of [/jobs/ext/1971282-application-developer](https://www.wearedevelopers.com/jobs/ext/1971282-application-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). --- # APPLICATION DEVELOPER - **Company:** Atos Corp. - **Location:** Irving, TX, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** COBOL (Programming Language), IBM DB2, Job Control Language (JCL), Rexx (Programming Language), Mainframes, Information Technology - **Published:** August 7, 2026 - **Apply:** https://us.experteer.com/career/view-jobs/application-developer-irving-tx-usa-58832878 ## About the Role Experteer Overview As a System Lead at Atos, you guide complex mainframe solutions in client-facing environments, shaping reliability and performance for critical systems. You'll collaborate with cross-functional teams to deliver continuous mainframe development, enhancements, and operational support. This role combines hands-on technical leadership with on-site and offshore delivery to meet client needs in a regulated, security-focused context. You will help drive transformation in core IT infrastructure and digital workplaces. Compensation / Benefits * Lead and oversee mainframe development, enhancements and operational support (COBOL, JCL, REXX, DB2) * Engage directly with customers to understand requirements and deliver solutions * Coordinate onsite-offshore delivery models to ensure project success * Apply strong analytical skills to troubleshoot and optimize critical systems * Communicate effectively with stakeholders and cross-functional teams * Provide technical guidance and mentorship to junior engineers Tasks * 15+ years of experience with Mainframe, COBOL, JCL, REXX, DB2 * 5-8 years of customer-facing experience * 4-5 years of development or enhancement & operational support on mainframe technology * Good Communication Skills * Good Analytical skill * Experience working onsite - offshore model Key requirements * ## Description Experteer Overview As a System Lead at Atos, you guide complex mainframe solutions in client-facing environments, shaping reliability and performance for critical systems. You'll collaborate with cross-functional teams to deliver continuous mainframe development, enhancements, and operational support. This role combines hands-on technical leadership with on-site and offshore delivery to meet client needs in a regulated, security-focused context. You will help drive transformation in core IT infrastructure and digital workplaces. Compensation / Benefits * Lead and oversee mainframe development, enhancements and operational support (COBOL, JCL, REXX, DB2) * Engage directly with customers to understand requirements and deliver solutions * Coordinate onsite-offshore delivery models to ensure project success * Apply strong analytical skills to troubleshoot and optimize critical systems * Communicate effectively with stakeholders and cross-functional teams * Provide technical guidance and mentorship to junior engineers Tasks * 15+ years of experience with Mainframe, COBOL, JCL, REXX, DB2 * 5-8 years of customer-facing experience * 4-5 years of development or enhancement & operational support on mainframe technology * Good Communication Skills * Good Analytical skill * Experience working onsite - offshore model Key requirements * ## Related Videos - [".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) - [Enabling intelligent logistics automation: home-grown Industrial IoT platform at Austrian Post](https://www.wearedevelopers.com/videos/2018-enabling-intelligent-logistics-automation-home-grown-industrial-iot-platform-at-austrian-post) - [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) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Migrating from COBOL with AI: A Moonshot Demo](https://www.wearedevelopers.com/videos/1531-migrating-from-cobol-with-ai-a-moonshot-demo) ## Related Articles - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [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 Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)