Senior Mainframe Engineer - Secure, Scalable Batch & Online

mtb; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

mtb in the United States seeks a senior-level mainframe engineer to deliver secure, resilient, and maintainable enterprise applications. You will own end-to-end delivery across analysis, design, implementation, validation, and production support, working with business, technology, QA, architecture, and operations teams.

Responsibilities include optimizing batch and online processing, enabling API integration, and reducing technical debt through modernization efforts.

Qualifications

• IBM z/OS mainframe development and delivery experience.
• Strong batch and online processing expertise.
• Proficiency with DB2 SQL and data validation.
• Knowledge of modern z/OS development tools.
• GitLab, CI/CD, and release management experience.
• SDLC and Agile delivery with Jira/Zephyr/ServiceNow.

Responsibilities

• Own delivery of secure, resilient mainframe solutions across the full lifecycle from analysis and design through implementation, validation, and production support.
• Translate business and technical requirements into quality application changes for batch, online, interface, and data-processing capabilities.
• Troubleshoot application, transaction, batch, interface, data flow, restart/recovery, and downstream issues.
• Prepare technical specifications, backout plans, support documentation, and delivery estimates with clear ownership of risks, dependencies, quality, and production stability.
• Execute SDLC activities across requirements analysis, estimation, design, coding, testing, documentation, and release readiness.
• Apply GitLab and DevOps practices for source control, CI/CD, deployment planning, and validation.
• Support modernization initiatives including API enablement, data integration, technical debt reduction, platform resiliency.
• Collaborate with cross-functional teams and mentor less experienced engineers.

Skills

Mainframe

COBOL

CICS

JCL

DB2

z/OS

Education

Associate degree

Tools

IDz

ADDI

DBB

ZUnit

z/OS Connect

File-AID

Xpediter

Job description

mtb in the United States seeks a senior-level mainframe engineer to deliver secure, resilient, and maintainable enterprise applications. You will own end-to-end delivery across analysis, design, implementation, validation, and production support, working with business, technology, QA, architecture, and operations teams.

Responsibilities include optimizing batch and online processing, enabling API integration, and reducing technical debt through modernization efforts.