Impress employers and recruiters.
Choose from hundreds of resume examples.

Target Resume Now

Tailor your resume to this Senior Software Engineer – Mainframe COBOL, z/OS, CICS, JCL role.

Rezi rewrites your resume against M&T Bank's job description. Free.

Resume score gauge reading 58 out of 100

Don't guess if your resume is good enough.

See how it scores against the Senior Software Engineer – Mainframe COBOL, z/OS, CICS, JCL posting at M&T Bank — free, in seconds.

About the Role

Senior-level owner of design, development, modernization, and production support for business-critical IBM z/OS applications. This role combines deep COBOL batch and online expertise with modern Git-based engineering, test automation, and CI/CD.

Responsibilities

Lead technical design, development, enhancement, and support of mainframe applications, owning technical decisions and delivery quality.
Partner with business and technology stakeholders to align delivery with priorities, requirements, risk controls, and enterprise standards.
Deliver secure, efficient, maintainable, and resilient mainframe code; lead design, troubleshooting, and performance tuning across batch and online processing.
Establish coding standards and quality expectations for maintainability, performance, security, and resiliency.
Review and approve solution designs, code changes, peer reviews, and deployment readiness.
Define test strategy for mainframe changes, covering batch validation, automated regression and reconciliation testing, performance checks, and implementation verification.
Build and maintain Git-based CI/CD workflows with dependency-aware builds, static analysis and security quality gates, controlled promotion, and rollback readiness.
Ensure requirements, solution designs, and implementation plans are complete, feasible, scalable, secure, and aligned with standards.
Guide architecture, integration patterns, and modernization across mainframe and connected platforms.
Lead incremental modernization through API enablement (e.g., z/OS Connect), modularization, and secure integration with distributed and cloud platforms.
Own technical health by improving resiliency, reducing defects and technical debt, and guiding remediation plans.
Ensure production readiness for batch schedules, online transactions, restart/recovery, monitoring, and support documentation; lead incident root-cause analysis and post-incident reviews.
Apply AI-assisted engineering and automation responsibly where appropriate.
Communicate architecture, decisions, progress, and risks clearly to technical and business stakeholders.
Influence technical decisions across teams without direct authority, presenting in architecture reviews and knowledge-sharing forums.
Maintain documentation and partner across business, architecture, infrastructure, security, operations, risk, and audit teams.
Ensure changes comply with risk, regulatory, policy, change management, security, data protection, and access control standards, with auditable evidence.
Support a culture of belonging, reflect the M&T Bank brand, maintain internal controls, and complete other assigned duties.
Serve as an individual-contributor technical lead accountable for technical direction, design quality, code review, modernization, and production stability.
Own technical outcomes for assigned applications, platforms, or domains, including design, delivery quality, operational readiness, and risk remediation.

Requirements

Associate’s degree and a minimum of 5 years’ systems analysis and/or application development work experience or Bachelor's degree and a minimum of 3 years’ systems analysis and/or application development work experience. In lieu of degree, a combined minimum of 7 years’ education and/or relevant work experience, including a minimum of 3 years’ systems analysis and/or application development work experience.
Strong hands-on experience with IBM z/OS application engineering using COBOL, JCL, CICS, VSAM, and batch and online transaction processing.
Experience diagnosing abends, data, transaction, and performance issues using z/OS debugging, file-analysis, and JES/SDSF tools.
Experience with Git-based source control, peer review, and CI/CD for enterprise applications.
Working knowledge of mainframe security, access control, auditability, change management, and resiliency.
Experience integrating mainframe applications through MQ, APIs, files, or events.
Expert analytical and software engineering skills, with strong understanding of SDLC, testing, deployment, resiliency, security, and change management.
Experience leading technical initiatives or engineering workstreams as an individual-contributor technical lead.
Experience reviewing solution designs, technical requirements, and code changes.
Bachelor’s degree in Computer Science and a minimum of 5 years of systems analysis and/or application development experience.
Experience improving production stability, defect reduction, and engineering productivity.
Experience influencing technical decisions and presenting to technology and business stakeholders in Agile delivery environments.

Skills

COBOL
JCL
CICS
VSAM
Batch processing
Online transaction processing
z/OS debugging
File-analysis tools
JES/SDSF tools
Git
Source control
Peer review
CI/CD
Mainframe security
Access control
Auditability
Change management
Resiliency
MQ integration
API integration
File integration
Event integration
SDLC
Testing
Deployment
Security
z/OS Connect
ZDIH
API design
Distributed platforms integration
Cloud platforms integration
Mainframe DevOps
Test automation
IBM DBB/zBuilder
Test Accelerator for Z
SonarQube
Ansible
IDz
VS Code
Zowe
USS
AI-assisted tools
Easytrieve+
CA7/Control-M
File-AID
Abend-AID
Xpediter
InterTest

Location

Buffalo, New York, United States of America

Work Type

4 Days In-Office
1 Day Work From Home
Onsite

Experience Level

Senior-level
Minimum of 5 years’ systems analysis and/or application development work experience
Minimum of 3 years’ systems analysis and/or application development work experience
Combined minimum of 7 years’ education and/or relevant work experience
Minimum of 3 years’ systems analysis and/or application development work experience
Minimum of 5 years of systems analysis and/or application development experience

Education Level

Associate’s degree
Bachelor's degree
Bachelor’s degree in Computer Science

Salary/Compensations

$97,100.00 - $161,800.00 Annual (USD)

Benefits

Competitive compensation
Health, welfare, and retirement benefits
401(k) match at 5%
Work-life balance and flexible work arrangements
25 days PTO plus 12 paid holidays
40 hours paid volunteer hours per year

About the Company

M&T Bank is committed to fair, competitive, and market-informed pay for our employees.