[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Capgemini · Aguascalientes # Mainframe Developer & L3 Support Engineer Aguascalientes Software Engineering Listed on Capgemini’s official careers site. Listed as of November 1, 2026. Check that it is still open and apply there. [Apply on Capgemini’s careers site →](https://www.capgemini.com/jobs/581616-en_US+sap_btp) [OpenNash Jobs](https://jobs.opennash.com/) / [Capgemini](https://jobs.opennash.com/companies/capgemini/) / Mainframe Developer & L3 Support Engineer ## Job description Mainframe Developer / L3 Support Engineer (Senior Level)Capgemini MexicoAs a Senior Mainframe Developer / L3 Support Engineer at Capgemini, you will play a critical role in maintaining, enhancing, and supporting business-critical mainframe applications. You will leverage your expertise in COBOL, Natural, ADABAS, DB2, VSAM, CICS, and z/OS environments to deliver reliable solutions, resolve complex production issues, and ensure operational stability. Working closely with global teams and business stakeholders, you will drive continuous improvement, support modernization initiatives, and contribute to the long-term success of mission-critical systems.Your Role Responsibilities & ScopeWork on large-scale, business-critical mainframe applications that support core enterprise operations.Collaborate with multidisciplinary teams across development, testing, infrastructure, and business functions to deliver high-quality solutions.Take ownership of both application enhancements and complex L3 production support activities across online and batch processing environments.Drive problem resolution through detailed analysis, debugging, root cause identification, and implementation of sustainable solutions.Contribute to modernization and continuous improvement initiatives while preserving the stability and integrity of legacy systems.Apply industry best practices in software engineering, incident management, change management, and operational excellence.Grow your technical expertise in a collaborative environment that values innovation, accountability, and continuous learning. Your ProfileStrong expertise in mainframe technologies, including COBOL, Natural, ADABAS, DB2, VSAM, CICS, JCL, and z/OS, with the ability to navigate complex application ecosystems.Demonstrated analytical mindset with the ability to troubleshoot, diagnose, and resolve complex production incidents while identifying long-term improvements.Ownership mentality and accountability when managing critical applications, prioritizing service reliability and business continuity.Effective communication and stakeholder collaboration skills, enabling productive interactions across technical and non-technical teams.Continuous improvement mindset with a focus on quality, operational excellence, knowledge sharing, and modernization opportunities.What you’ll loveJoin global employee networks that promote engagement, development, and belonging.Access continuous learning through internal academies, certifications, and mentorship.Well-being hub and different wellbeing initiatives Need to knowFlexible Schedules: We support flexible working hours to accommodate different lifestyles, time zones, and family responsibilities. ### Career Development in Spanish & English Training, certifications, and mentorship programs available in both languages to support bilingual growth.About Capgemini Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations.At Capgemini Mexico, we aim to attract the best talent and are committed tocreating a diverse and inclusive work environment, so there is nodiscrimination based on race, sex, sexual orientation, gender identity orexpression, or any other characteristic of a person. All applications welcomeand will be considered based on merit against the job and/or experience for the position. ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 25, 2026 - Last checked: Nov 1, 2026 - Listed for: 7 days - Location: Aguascalientes[Apply on Capgemini’s careers site →](https://www.capgemini.com/jobs/581616-en_US+sap_btp) ## Hiring at Capgemini - Open jobs: 6,429 - New in the last 7 days: 548 - Tracked since: Aug 1, 2026 [All Capgemini jobs](https://jobs.opennash.com/companies/capgemini/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Capgemini ### [.Net Developer](https://jobs.opennash.com/companies/capgemini/jobs/3de713d7648b62a46607/) Aguascalientes ### [.net Developer - Fullstack](https://jobs.opennash.com/companies/capgemini/jobs/a2f48aaa53bcfe0861b3/) Aguascalientes ### [ABL -: AI Architect](https://jobs.opennash.com/companies/capgemini/jobs/0ff8604a5d7ebe25fd5e/) Aguascalientes ### [ABL - AS400 Cobol](https://jobs.opennash.com/companies/capgemini/jobs/a655335a8fc3269cca66/) Aguascalientes ## Similar jobs at other companies ### [Cobol Mainframe Developer](https://jobs.opennash.com/companies/ntt/jobs/413f0f101a2775cb755c/) NTT · Lima, Peru ### [Senior Mainframe Developer](https://jobs.opennash.com/companies/thermo-fisher-scientific/jobs/0a0efdfd9e33c59be430/) Thermo Fisher Scientific · Ottawa, Ontario, Canada ### [Mainframe Application Support & Automation Analyst](https://jobs.opennash.com/companies/aegon/jobs/56d4cdabd48eb8ae0a0f/) Aegon · HUN Budapest ### [Mainframe Software Developer](https://jobs.opennash.com/companies/canadian-pacific-kansas-city/jobs/4c1b0bee7f4505598999/) Canadian Pacific Kansas City · Calgary, AB, CAN ### [Mainframe Developer](https://jobs.opennash.com/companies/tata-consultancy-services/jobs/ee08cc5d8474ff29e773/) Tata Consultancy Services · Chennai OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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