Senior Mainframe Developer

Senior Mainframe DeveloperLocation: Columbia, MDJob Type: Full-Time

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Position OverviewWe are seeking a Senior Mainframe Developer to support enterprise modernization and transformation initiatives involving complex IBM Mainframe systems.
This role requires deep hands-on expertise in Mainframe technologies, legacy application analysis, modernization strategies, and technical expertise. The ideal candidate will perform assessment and modernization efforts, collaborate with client stakeholders and engineering teams, and support large-scale migration initiatives in enterprise environments.
Key ResponsibilitiesAnalyze, maintain, support, and modernize large-scale Mainframe applications and legacy systemsWork extensively with:COBOLJCL and PROCsCICSVSAMDB2IMSBMS MapsBatch processing environmentsPerform technical discussions, modernization workshops, and system assessment sessions with client stakeholdersServe as the primary Mainframe technical POC for modernization activities, dependencies, and integration effortsAnalyze legacy business workflows, application logic, system integrations, and data dependenciesRecommend modernization, migration, remediation, and transformation strategiesSupport automated code analysis, remediation, and modernization workflowsDocument business rules, technical processes, data mappings, reconciliation logic, and functional behaviorCollaborate with architects, QA teams, DevOps teams, business analysts, and cross-functional engineering teamsPerform source code inventory analysis, dependency mapping, and technical assessment activitiesSupport reconciliation, validation, testing, and stabilization activitiesAssist with enterprise data migration and synchronization initiativesTroubleshoot production issues, optimize batch workloads, and support application enhancementsParticipate in modernization factory workflows, including automated analysis and transformation activitiesPrepare technical documentation, modernization artifacts, operational runbooks, and system analysis reportsProvide mentorship and technical expertise to engineering and modernization teams
Required Qualifications10-15 years of hands-on experience with enterprise Mainframe applicationsStrong expertise with:COBOLJCL and PROCsCICSVSAMDB2IMSBMS MapsBatch processing systemsStrong understanding of:Enterprise Mainframe architecturesTransaction processing systemsBatch processing frameworksLegacy application workflowsEnterprise integration patternsExtensive experience supporting large-scale legacy modernization initiativesExperience working with automated code analysis tools, transformation pipelines, and modernization acceleratorsStrong client-facing communication and stakeholder management skillsExperience serving as a technical lead on enterprise modernization programsStrong understanding of enterprise xzbcwsv business processes, data flows, and system dependenciesExposure to:Distributed systemsAPIs and middlewareHybrid integration architecturesCloud modernization initiativesFamiliarity with AWS and/or Azure environmentsStrong troubleshooting, analytical, and problem-solving skillsAbility to drive technical modernization activities independently and hands-on in fast-paced enterprise environmentsExcellent written and verbal communication skills
Preferred QualificationsExperience supporting enterprise modernization and migration programsExperience with AI-assisted code analysis and remediation workflowsExperience working with modernization factories, automated conversion tools, and migration acceleratorsExperience working in Agile/Scrum delivery environmentsExperience supporting government, financial, healthcare, tax, or other large enterprise modernization programsFamiliarity with cloud-native modernization and hybrid cloud integration strategies