Make an impact with NTT DATAJoin a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.Your day at NTT DATAAs an IBM z/OS Integration Engineer, you will design, configure, and support enterprise integration solutions that connect distributed applications with core banking services running on IBM z/OS. Leveraging integration middleware and technologies such as IBM MQ, CICS, DB2, and API-enabled services, you will deliver secure, resilient, and high-performing integration solutions that meet business and technical requirements. Working within a global engineering team, you will contribute to modern API-driven integration strategies, troubleshoot complex issues, and drive continuous improvements across enterprise integration platforms.In this Role, You willDesign, build, and support enterprise integration solutions across IBM z/OS environments.Configure, maintain, and optimize integration middleware supporting business-critical services.Deliver secure, scalable, and resilient integration solutions that meet functional and non-functional requirements.Collaborate with application teams, architects, and infrastructure teams to define integration designs and technical solutions.Implement and support API-based integrations between distributed systems and mainframe applications.Investigate and resolve complex production incidents and integration issues.Analyse application flows and troubleshoot end-to-end integration challenges.Produce technical documentation, solution designs, and operational support procedures.Support modernization initiatives and continuous improvement of enterprise integration platforms and engineering standardsRequired QualificationsStrong experience developing or supporting applications on IBM z/OS.Good understanding of CICS, DB2 and COBOL.Hands-on experience with IBM MQ messagingKnowledge of REST APIs,enterprise integration principles,



and API integration frameworks such as z/OS Connect EE.Understanding of synchronous and asynchronous integration patterns.Experience implementing secure and resilient integrations between distributed and mainframe applications.Experience with source management and service management tools such as Endevor, Jira, and ServiceNow (SNOW).Strong troubleshooting, analytical, and problem-solving skills.Excellent written and verbal communication abilities.Desired QualificationsExperience with monitoring and diagnostic tools such as OMEGAMON, Fault Analyzer, and dump analysis.Knowledge of workload scheduling tools such as TWS (Tivoli Workload Scheduler).Experience working in Agile delivery environments.Banking or Financial Services industry experience.Exposure to enterprise architecture, integration governance, and API management platforms.Mainframe modernization and cloud integration experience would be advantageousPrimary SkillsetIBM z/OSIBM MQCICSDB2COBOLz/OS Connect Enterprise Edition (EE)REST APIsEnterprise Integration ArchitectureMainframe IntegrationProduction Support & TroubleshootingIntegration MiddlewareSecondary SkillsetEndevorJiraServiceNow (SNOW)OMEGAMONFault AnalyzerDump AnalysisTivoli Workload Scheduler (TWS)Agile MethodologiesBanking & Financial Services DomainTechnical DocumentationIncident & Problem ManagementStakeholder CollaborationJob ExpectationsEnsure the stability, security, and performance of enterprise integration services.Collaborate effectively with globally distributed engineering and application teams.Follow enterprise architecture, security, and operational standards.Participate in incident, problem,



and change management processes.Deliver high-quality technical documentation and support artifacts.Drive continuous improvements in integration engineering practices and platform capabilities.Support business-critical services with a strong focus on availability and resilience.Workplace type: About NTT DATANTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.Equal; Opportunity EmployerNTT DATA is proud to be an Equal Opportunity Employer with a integral culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.Third parties fraudulently posing as NTT DATA recruitersNTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters whether in writing or by phone in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.Job SummaryJob number: R-150026Date posted : 2026-09-09Profession: Digital Design and DevelopmentEmployment type: Full time

📌 IBM z/OS Integration Consultant (Barcelona)
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📍 Barcelona