Senior Software Engineer - Enterprise Design System

M&T Bank•Buffalo, NY

5d•$97,100 - $161,800•Hybrid

About The Position

Builds and maintains a shared front-end design system, including a component library and supporting tooling, used across the Bank’s web applications. The role focuses on TypeScript-based component engineering, Node.js-powered build, test, and release pipelines, accessibility and quality standards, and enabling internal product teams through documentation and support. The position is on-site, with flexibility to work from home one day per week.

Requirements

Associate’s degree and at least 5 years of systems analysis and/or application development experience; or a bachelor's degree and at least 3 years of such experience; or, in lieu of a degree, at least 7 years of combined education and/or relevant work experience, including at least 3 years of systems analysis and/or application development experience.
Professional experience engineering reusable front-end components using JavaScript or TypeScript.
Experience with Node.js and front-end build tooling for packaging, testing, and publishing, such as CI pipelines.
Experience with code quality practices such as code reviews, automated testing, and continuous integration.
Advanced proficiency with at least one modern front-end framework: Angular, React, Vue, Solid, Svelte, or Lit.

Nice To Haves

Deep experience implementing and validating accessible component behavior and familiarity with WCAG concepts.
Experience with design-system tooling such as Storybook or similar, and maintaining high-quality component documentation.
Familiarity with Figma design handoffs, including component specifications, tokens, and interaction guidance, and collaboration 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, including custom elements and Shadow DOM concepts, and integration with common frameworks.
Experience publishing and maintaining internal packages for multiple consuming teams, including versioning, release notes, and deprecation strategy.
Experience with monorepos and modern build tooling, such as package managers, bundlers, and linters, and improving developer experience.
Experience working in an Agile team environment.
Ability to work autonomously and multitask on complex projects.
Strong organizational and time-management skills.
Proficient verbal and written communication skills.

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 for consistent, framework-agnostic adoption across consuming applications.
Champion and apply accessibility standards for the library, including semantic markup, keyboard and focus behavior, and appropriate ARIA; support consuming teams with guidance and reviews.
Develop and maintain library documentation, usage guidelines, examples, and developer enablement materials.
Build and operate Node.js-based tooling for build, test, lint, packaging, and publishing, and support CI/CD automation.
Apply design-system quality practices, including automated unit and integration tests, visual or regression testing where applicable, and code review standards.
Support versioning and release practices for internal consumers, such as semantic versioning, change logs, and deprecation strategy.
Support internal design-system users by troubleshooting integration issues, triaging defects, and improving developer experience.
Collaborate with product, design, QA, and engineering teams to understand needs, prioritize the backlog, and align on shared UI standards.
Understand and adhere to company risk and regulatory standards, policies, and controls, and escalate risk-related issues as needed.
Promote a culture of belonging that reflects the M&T Bank brand.
Maintain M&T internal control standards, including timely implementation of internal and external audit points and applicable issues raised by external regulators.
Complete other related duties as assigned.