Senior Software Engineer - Enterprise Design System

M&T Bank

Buffalo, New York, United Statesunknown$97,100–$161,800Posted Nov 3, 2026

About the role

This position is on-site with the flexibility to work from home one day per week.

Overview:

Builds and maintains a shared front-end design system (component library and supporting tooling) used across the Bank’s web applications. This role focuses on TypeScript-based component engineering, Node.js-powered build/test/release pipelines, accessibility and quality standards, and enablement of internal product teams through documentation and support.

Primary Responsibilities:

Engineer and evolve a shared design system and component library using TypeScript, including reusable UI components, patterns, and utilities.

Translate approved UX/UI designs and interaction specifications into robust, accessible components in partnership with designers and product engineers.

Develop and maintain Web Components (custom elements) and related standards-based patterns to support consistent, framework-agnostic adoption across consuming applications.

Champion and apply accessibility (a11y) standards for the library (semantic markup, keyboard/focus behavior, appropriate ARIA), and support consuming teams with guidance and reviews.

Develop and maintain the library ecosystem, including documentation, usage guidelines, examples, and developer enablement materials.

Build and operate Node.js-based tooling for the library (build, test, lint, packaging, and publishing) and support CI/CD automation.

Adhere to established quality practices for the design system: automated unit/integration tests, visual/regression testing where applicable, and code review standards.

Support versioning and release practices for internal consumers (e.g., semantic versioning, change logs, deprecation strategy) to enable safe adoption.

Support internal users of the design system by troubleshooting integration issues, triaging defects, and improving developer experience (DX).

Collaborate with product, design, QA, and other engineering teams to understand needs, prioritize backlog, and drive alignment on shared UI standards.

Understand and adhere to the Company’s risk and regulatory standards, policies, and controls; escalate risk-related issues as needed.

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 any issues raised by external regulators as applicable.

Complete other related duties as assigned.

Education and Experience Required:

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.

Professional experience engineering reusable front-end components using JavaScript/TypeScript.

Experience with Node.js and front-end build tooling to support packaging, testing, and publishing (e.g., CI pipelines).

Experience with code quality practices such as reviews, automated testing, and continuous integration.

Advanced proficiency with at least one modern front-end framework (Angular, React, Vue, Solid, Svelte, or Lit).

Education and Experience Preferred:

Deep experience implementing and validating accessible component behavior (a11y) and familiarity with WCAG concepts.

Experience with design system tooling (e.g., Storybook or similar) and maintaining high-quality component documentation.

Familiarity with Figma design handoffs (e.g., consuming component specs, tokens, and interaction guidance) and collaborating with designers to clarify implementation details.

Hands-on experience with Angular, React, and Lit in a component-library or design-system context.

Familiarity or hands-on experience with Web Components (custom elements; Shadow DOM concepts) and how to integrate them with common frameworks.

Experience publishing and maintaining internal packages (versioning, release notes, deprecation strategy) for multiple consuming teams.

Experience with monorepos and modern build tooling (e.g., package managers, bundlers, linters) and improving developer experience (DX).

Experience working in an Agile team environment.

Ability to work autonomously and to multitask on complex projects.

Strong organizational and time management skills.

Proficient verbal and written communication skills.

We support our team members with generous benefits.

Competitive compensation

Health, welfare, and retirement benefits

401(k) match at 5%

Work-life balance and flexible work arrangements

Banking Officers start with 25 days PTO plus 12 paid holidays

40 hours paid volunteer hours per year

Much more. For details, see: M&T Benefits Overview

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 candidate’s particular combination of knowledge, skills, and experience will inform their specific compensation.

Location

Buffalo, New York, United States of America

Responsibilities

  • Engineer and evolve a shared TypeScript design system and reusable front-end component library.
  • Translate UX/UI designs into robust, accessible components and Web Components.
  • Build and maintain Node.js tooling, automated tests, and CI/CD workflows for packaging and publishing.
  • Create documentation, examples, and enablement materials for internal users.
  • Support consuming teams with integration troubleshooting, defect triage, and developer experience improvements.
  • Collaborate with product, design, QA, and engineering teams to prioritize work and align on shared UI standards.
  • Follow company risk, regulatory, and internal control standards.

Qualifications

  • At least 3 years of systems analysis or application development experience, with additional education and experience requirements depending on degree.
  • Professional experience engineering reusable front-end components with JavaScript or TypeScript.
  • Experience with Node.js and front-end build tooling for packaging, testing, publishing, or CI pipelines.
  • Experience with code reviews, automated testing, and continuous integration.
  • Advanced proficiency in at least one modern front-end framework such as Angular, React, Vue, Solid, Svelte, or Lit.
  • Preferred experience with accessibility standards, design-system tooling, Figma handoffs, Web Components, package releases, monorepos, and Agile teams.

Benefits

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

Skills mentioned

TypeScriptJavaScriptFrontend DevelopmentNode.jsReactAngularWeb AccessibilityCI/CDUnit TestingIntegration Testing

About M&T Bank

Great companies have an enduring sense of purpose. At M&T Bank, our purpose is a simple one: make a difference in people’s lives and uplift the communities we serve. Founded in 1856 in Buffalo, NY we are now a top 11 full-service US-based commercial bank with a retail footprint across the east coast and wealth services available nationwide and abroad. As a bank, we offer advice, guidance, expertise, and solutions across the entire financial spectrum that combines M&T’s traditional banking services with the wealth management and institutional capabilities offered by Wilmington Trust. We are a community-minded organization with more than 170 years of experience. We serve customers, community, and colleagues whether they be across the street, across the state or across the country. As an employer of choice, we are proud to offer competitive benefits ranging from medical and retirement to forty hours of paid volunteer time, each year. Our core values drive the work we do – integrity, ownership, collaboration, curiosity, candor and we seek to further build upon our record of success by bringing in top talent and fresh skill sets while continuing to support the growth and development of all our team members. M&T Bank is unwavering when it comes to providing equal employment opportunities to all employees and applicants without regard to race, color, national origin, religion, ethnicity, sex, gender identity, age, disability, citizenship, pregnancy, veteran status, military status, marital status, sexual orientation, genetic information or any other characteristic protected under applicable federal, state or local laws.

Financial Services10,001+ employeesBuffalo, New York

H-1B sponsorship history

Historical employer filing data was found for M&T Bank. The employer record includes 532 historical certified applications. This is employer-level history, not a guarantee that this role currently offers sponsorship.