Senior Software Engineer - Enterprise Design System
Manufacturers and Traders Trust Company
Buffalo, NY · Posted November 3, 2026
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Where Buffalo, NY ranks
Where Buffalo, NY placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #8Best cities for junior jobs in New York29% · of 11
- #10Best cities for software and engineering jobs in the Northeast121 openings · of 52
- #10Best all-round cities for new graduates in the Northeast51 / 100 · of 26
- #13Cities with the most jobs that do not need a four-year degree in the Northeast44 jobs · of 36
- #13Best cities for mid-career professionals in the Northeast54% · of 70
- #13Best all-round cities for mid-career professionals in the Northeast50 / 100 · of 26
Rankings about design jobs
- Best cities for design jobs #1 New York (717 openings)
- Most requested AI skills in design jobs #1 AI tools in daily work (14.5%)
- Employers with the most design jobs #1 Amazon (176 roles)
Pay compared with the market
This listing does not state pay. Across 1,008 open senior software engineer listings that state pay, the middle half runs $167,000 to $222,000 and the median is $199,000.
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Senior Software Engineer salaries by state · Check your own pay
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Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
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