Lead Software Engineer - Mainframe

Company: M&T Bank

Location: Buffalo, NY

Salary: $116.4k - $194k per year

Type: Full-time

Posted: 2026-07-20

About this role

Overview:
Responsible at the expert level for mainframe software engineering, technical solution delivery, and technical requirements gathering. Serves as an individual-contributor technical lead for critical mainframe applications and platforms, completing work in alignment with banking technology standards and contributing to the overall stability, resiliency, modernization, and operational excellence of banking technology within the Software Development Lifecycle (SDLC) while also coaching others.

Primary Responsibilities:

  • Develop and coach other team members while also working independently on mainframe applications within the boundaries of approved Software Development Life Cycle (SDLC) processes, including identification and recommendation of metrics to solve business needs and minimize risks to the Bank through clean, secure, maintainable, and resilient code.
  • Lead technical design, development, enhancement, troubleshooting, performance tuning, and support of mainframe applications across batch and online processing while ensuring SDLC governance and enterprise standards are followed.
  • Own technical decisions and delivery quality for assigned mainframe platforms, workstreams, application domains, or technical initiatives.
  • Review and approve the designs and proposals of pull requests, code changes, peer reviews, source control practices, deployment readiness, and change management execution.
  • Design processes for peer review and coach others on code reviews, code quality, secure development practices, maintainability, performance, resiliency, and continuous improvement.
  • Author organized, clean, efficient, and secure source code at the expert level in mainframe technologies while coaching team members on appropriate data structures, algorithms, and engineering approaches to solve business problems.
  • Oversee source control management activities, including code merges into the production deployment path, GitLab practices, change management, ...

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