Full-Time

Lead Software Engineer

Mainframe

M&T Bank

M&T Bank

10,001+ employees

Full-service banking with mortgage, deposits, loans

Compensation Overview

$116.4k - $194k/yr

Buffalo, NY, USA

Hybrid

Hybrid position in Buffalo.

Bachelor's, Associate's

Category
Software Engineering
Required Skills
Agile
Software Testing
Mainframe Computing
Version Control
DevOps

Get referred to M&T Bank

See people who can refer or advise you

Requirements
  • An Associate’s degree and a minimum of 7 years’ systems analysis and/or application development work experience, or a Bachelor’s degree and a minimum of 5 years’ systems analysis and/or application development work experience. In lieu of a degree, a combined minimum of 9 years’ education and/or relevant work experience, including a minimum of 5 years’ systems analysis and/or application development work experience, is accepted.
  • Expert proficiency in at least one relevant programming language and professional proficiency in at least one additional relevant programming language.
  • Expert proficiency with mainframe software engineering and application development.
  • Experience with IBM z/OS, COBOL, CICS, JCL, VSAM, DB2 for z/OS, TSO/ISPF, SDSF, and Easytrieve+.
  • Experience with GitLab or similar tools for source control, change management, and continuous integration and continuous delivery pipeline management.
  • Experience with mainframe debugging and analysis tools such as File-AID, Abend-AID, Xpediter, InterTest, or equivalent.
  • Experience with batch scheduling and enterprise integration tools such as CA7, Control-M, MQ, or equivalent.
  • Expert analytical skills specific to software engineering and application development.
  • Experience leading technical initiatives, project deliverables, or engineering workstreams as an individual-contributor technical lead.
  • Experience reviewing solution designs, technical requirements, code changes, testing approaches, and implementation plans.
  • Strong understanding of software development lifecycle, testing, deployment, resiliency, security, change management, and production support practices.
Responsibilities
  • Develop and coach other team members while working independently on mainframe applications within approved software development lifecycle processes, including identifying and recommending metrics to solve business needs and minimize risks 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 software development lifecycle 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 designs and proposals for pull requests, code changes, peer reviews, source control practices, deployment readiness, and change management execution.
  • Design peer-review processes 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.
  • Oversee source control management activities, including code merges into the production deployment path, GitLab practices, change management, and continuous integration and continuous delivery pipeline management where applicable.
  • Review testing methodology, code coverage, batch validation, regression testing, data reconciliation, performance checks, implementation verification, and automation opportunities to ensure comprehensive testing.
  • Drive implementation adherence to patterns and practices for performance testing, resiliency, restart and recovery, optimization, monitoring, and production readiness within the assigned domain.
  • Review and approve requirement plans on behalf of the team in alignment with delivery partners and ensure requirements, solution designs, and implementation plans are complete, accurate, feasible, scalable, secure, and aligned with business and technical standards.
  • Partner with business, product, architecture, infrastructure, security, operations, risk, audit, and other technology groups; suggest continuous process improvement across organizational boundaries where technical or architectural concerns require it.
  • Contribute technical requirements in support of delivery, maintenance, modernization, integration, resiliency, and operational solutions within the assigned domain.
  • Guide architecture, integration patterns, modernization efforts, engineering processes, and technical decision-making across mainframe and connected platforms.
  • Drive mainframe modernization through API enablement, data integration, DevOps adoption, technical debt reduction, incremental refactoring, platform resiliency, and responsible use of AI-assisted engineering and automation where appropriate.
  • Own technical health by improving resiliency, reducing defects, addressing technical debt, and guiding remediation plans for assigned applications or platforms.
  • Communicate architecture, technical decisions, progress, risks, blockers, and challenges to business and technical stakeholders and teams.
  • Translate complex mainframe constraints into business, delivery, risk, and operational impacts while helping resolve technical blockers.
  • Contribute ideas and recommendations to application architectural design work, engineering practices, modernization opportunities, and pattern changes, and present at architecture peer-group and architecture-review-board meetings within the assigned domain.
  • Present team work at internal meetings with peers, architecture forums, knowledge-sharing sessions, and other stakeholder discussions as needed.
  • Influence technical decisions across teams without direct authority through technical expertise, documentation, standards, collaboration, and clear communication.
  • Maintain documentation supporting design decisions, operational readiness, support procedures, technical standards, production stability, and risk remediation.
  • Adhere to the Company’s risk and regulatory standards, policies, and controls in accordance with the Company’s Risk Appetite, and identify and escalate risk-related issues as needed.
  • Ensure technical changes comply with company risk, regulatory, policy, change management, security, data protection, access control, and operational risk standards.
  • Promote an environment that supports a culture of belonging and reflects the M&T Bank brand.
  • Maintain M&T internal control standards, including timely implementation of internal and external audit points together with issues raised by external regulators, as applicable.
  • Complete other related duties as assigned.
Desired Qualifications
  • Bachelor’s degree in Computer Science or a related technical discipline.
  • Experience supporting mainframe modernization through z/OS Connect, ZDIH, API enablement, event or data integration, technical debt reduction, and platform resiliency.
  • Experience with mainframe DevOps, release readiness, automation testing, continuous integration and continuous delivery practices, and AI-assisted engineering tools where appropriate.
  • Experience improving production stability, defect reduction, application resiliency, and engineering productivity.
  • Experience working in a team environment.
  • Ability to work autonomously.
  • Ability to multitask on multiple complex projects.
  • Strong organizational skills.
  • Strong time management skills.
  • Advanced verbal and written communication skills.
  • Experience driving project milestones and delivery dates.
  • Proven experience leading a project, initiative, platform workstream, or technical modernization effort.
  • Experience partnering with and presenting to multiple stakeholders within technology and business departments.
  • Experience influencing technical decisions across teams without direct authority.
  • Experience working within Agile delivery frameworks.

M&T Bank is a full-service financial institution that offers a wide range of banking solutions for individuals, small businesses, and larger enterprises. Its products include personal and business checking accounts, mortgage assistance programs, loans, deposits, investment products, and mobile banking. The bank serves mainly customers in the Northeastern and Mid-Atlantic United States and emphasizes community engagement and customer-focused service. It generates revenue from interest income, fees, and service charges tied to loans, deposits, and other financial products. The company’s recent merger with United Bank, N.A. expands its footprint and enhances its service offerings. The goal is to provide accessible financial services to communities while growing its market presence and deepening local connections.

Company Size

10,001+

Company Stage

IPO

Headquarters

Buffalo, New York

Founded

1993

Get referred to M&T Bank

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Q2 2026 revenue reached $2.52 billion, beating consensus and rising 4.9% year over year.
  • Q2 2026 net income hit $818 million, while net charge-offs declined to $80 million.
  • A July 2026 app update added smoother navigation, biometric login, and configurable alerts.

What critics are saying

  • Commercial real estate grew $1.1 billion in Q2 2026, increasing credit-cycle exposure.
  • CET1 fell to 10.19% after $1.25 billion buybacks and $465 million repurchases.
  • Fintech lenders and digital-first banks pressure fee income, deposits, and branch economics by 2027.

What makes M&T Bank unique

  • M&T pairs regional deposits with commercial lending across the Northeast and Mid-Atlantic.
  • Its 2026 mobile app refresh strengthens sticky retail relationships and daily transaction usage.
  • Decades of community banking and multilingual branch programs deepen local trust and cross-sell opportunities.

Help us improve and share your feedback! Did you find this helpful?

Benefits

401(k) Company Match

401(k) Retirement Plan

Flexible Work Hours

Hybrid Work Options

Paid Vacation

Paid Holidays

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Health Savings Account/Flexible Spending Account

Growth & Insights and Company News

Headcount

6 month growth

10%

1 year growth

10%

2 year growth

10%
Business Wire
Sep 7th, 2026
Cari Raises Over $30 Million in First Tranche of Initial Funding Round, Backed Entirely by Banks

Cari, the bank-governed digital money network, today announced it has raised $32.5 million in the first tranche of its initial external funding round, with t...

Yahoo Finance
Aug 28th, 2026
M&T Bank beats Q2 revenue estimates by 1.9% as regional banks show mixed results

Regional banks delivered mixed second-quarter results, with revenues matching analyst expectations on average. M&T Bank reported revenues of $2.52 billion, up 4.9% year on year and exceeding consensus estimates by 1.9%. The bank also beat earnings per share projections and narrowly surpassed net interest income forecasts. Despite the strong quarter, M&T Bank's shares fell 1.3% following the announcement, trading at $238.67. The decline suggests investor expectations may have been higher than published Wall Street projections. Regional banks as a group have struggled, with share prices down an average of 1.5% since their latest earnings releases. These institutions face challenges including fintech competition, deposit outflows, credit deterioration, regulatory costs, and concerns about commercial real estate exposure following recent high-profile bank failures.

Pulse 2.0
Aug 7th, 2026
Charles River Associates expands credit facility to $400M with six-bank syndicate

Charles River Associates has expanded its credit facility to $400 million through a six-bank lending syndicate. The five-year agreement includes a $75 million term loan and a $325 million revolving credit facility, replacing a previous $300 million facility set to mature in August 2027. The revolving facility can be reduced to $250 million between 16 July and 15 January each year when working-capital requirements are lower. CRA will use proceeds to repay outstanding borrowings, support working capital, fund growth investments, and cover general corporate purposes. The lending group includes Bank of America, Citizens Financial Group, Eastern Bank, and Beacon Bank & Trust, with BMO and M&T Bank joining as new lenders. The expanded facility provides additional liquidity as the consulting firm invests in its global economic, financial, and management advisory operations.

CommercialSearch
Jul 22nd, 2026
Merritt Lands $621M for Mid-Atlantic Portfolio

Merritt Properties has secured a $621 million refinancing loan for a portion of its 58-asset Maryland Industrial Portfolio.

Simply Wall St
Jul 21st, 2026
Does M&T’s US$600 Million Preferred Offering and Buyback Shift the Capital Story for MTB?

M&T Bank Corporation recently completed a US$600 million callable preferred depositary share offering, sold in two tranches totaling 24,000,000 shares at US$25 each, with multiple major banks, including J.P. Morgan, BofA Securities and others, acting as co‑lead underwriters. Around the same time, M&T Bank reported higher second‑quarter 2026 net interest income of US$1,792 million and net income of US$818 million, while also reducing net charge‑offs to US$80 million and completing a US$465...