Senior Software Engineer - Mainframe

This is an exciting opportunity for a Senior Software Engineer who enjoys working at the intersection of critical mainframe systems and modern engineering practices. In this role, youu2019ll support highly visible platforms across Commercial Bank, Wealth, Private Banking, and Treasury while playing a key role in modernizing the mainframe ecosystem. Beyond strong COBOL and Easytrieve skills, this position offers opportunity to lead the migration from legacy code management to devops pipeline transformation, automation, API enablement, cloud integration, and realu2011time data streaming off the mainframeu2014work that has rarely been done in traditional mainframe environments. Youu2019ll collaborate closely with senior technical leaders and industry experts, contribute to new development and enhancements, and help shape the future of the platform by leveraging industryu2011leading technologies such as IBMu2019s zDIH (z/OS Data Integration Hub). For an engineer passionate about mainframe technology who also wants to build futureu2011ready skills and have meaningful impact, this role offers both stability and innovation in equal measure. Key Responsibilities + Design, develop, and maintain highu2011quality mainframe applications and batch processes. + Work extensively with COBOL, JCL, JSCAN, EZTRIEVE, TSO Utilities, CA7, FILEAID, XPEDITER, and ABEND-AID. + Partner with architecture and DevOps teams to establish and optimize a modern DevOps pipeline for mainframe code (CI/CD, automated testing, change automation). + Troubleshoot complex production issues, ensuring reliability and performance of missionu2011critical systems. + Collaborate with cross-functional teams on analysis, design, testing, and implementation of solutions. + Leverage IBMu2019s new zDIH technology to improve data integration, analytics accessibility, and modernization initiatives. + Receive mentoring from our most senior engineersu2014experts with decades of mainframe experienceu2014and progressively mentor junior team members. + Participate in code reviews, architecture discussions, and continuous improvement of engineering practices. Required Qualifications + Associateu2019s degree and a minimum of 5 yearsu2019 systems analysis and/ or application development work experience or Bachelor's degree and a minimum of 3 yearsu2019 systems analysis and/ or application development work experience. In lieu of degree, a combined minimum of 7 yearsu2019 education and/or relevant work experience, including a minimum of 3 yearsu2019 systems analysis and/or application development work experience + Advanced proficiency in: + COBOL + JCL / JSCAN + EZTRIEVE + TSO/ISPF Utilities + CA7 + FILEAID + XPEDITER + ABEND-AID + Strong understanding of batch processing, data flows, and performance tuning. + Proven ability to troubleshoot complex system issues in large-scale environments. + Excellent communication and collaboration skills. Preferred Qualifications + Experience contributing to or setting up DevOps/CI/CD pipelines for mainframe workloads (e.g., Git, SonarQube, SonarLint, ADDI, Ansible). + Familiarity with IBMu2019s zDIH or other mainframe modernization and integration technologies. + Exposure to cloud integration, API enablement, or data virtualization initiatives. + Background in financial services, insurance, or other highu2011availability industries. What We Offer + The chance to work directly with some of our most senior engineers , gaining expertise from industry veterans. + Opportunities to lead modernization initiatives and influence our mainframe engineering roadmap. + A collaborative environment that values innovation, craftsmanship, and continuous learning. + Competitive compensation, benefits, and professional development support. M&T Bank is committed to fair, competitive, and market-informed pay for our employees. The pay range for this position is $97,100.00 - $161,800.00 Annual (USD). The successful candidateu2019s particular combination of knowledge, skills, and experience will inform their specific compensation. Location Buffalo, New York, United States of AmericaM&T Bank Corporation is an Equal Opportunity/Affirmative Action Employer, including disabilities and veterans.

Created: 2026-03-13