CoStar Group, Inc. is hiring: Senior UI Engineer - Tailwind Design Systems in Ri

Senior UI Engineer – Tailwind Design Systems at CoStar Group (NASDAQ: CSGP) is a leading global provider of real estate information, analytics, and online marketplaces. We are on a mission to digitize the world’s real estate, empowering people to discover properties, insights, and connections that improve their businesses and lives.

Responsibilities

• Build and maintain robust React components using Tailwind CSS and design tokens to ensure consistency, clarity, and scalability across the UI.
• Develop, document, and showcase components in Storybook.js, supporting component‑driven development and enhancing cross‑team collaboration.
• Implement and extend design tokens (primitive and semantic) to align styling, spacing, typography, color, and interaction patterns across the design system.
• Collaborate with product designers to translate design specifications into pixel‑accurate, accessible, and performant UI implementations.
• Ensure responsive, accessible, and cross‑browser interfaces, leveraging Tailwind CSS’s utility‑first approach for rapid iteration.
• Optimize UI performance through efficient rendering strategies, state management, and bundle‑size improvements.
• Contribute to and evolve the UI design system, including Tailwind configuration, token architecture, Storybook stories, and documentation.
• Integrate frontend components with RESTful or GraphQL APIs using modern React patterns.
• Write clean, well‑documented code and participate in code reviews to maintain high engineering standards.
• Troubleshoot and resolve frontend issues across environments while contributing to best practices and process improvements.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or equivalent from an accredited, not‑for‑profit, in‑person university or college.
• 3+ years of professional frontend or UI engineering experience, ideally in enterprise‑scale applications.
• Strong expertise in React, including hooks, state management, and component composition.
• Advanced experience with Tailwind CSS, including custom theming, responsive design, and utility composition.
• Hands‑on experience with Storybook.js, including creating stories, documentation, and component demos.
• Solid understanding of design tokens, both primitive (e.g., spacing, color values) and semantic (e.g., brand color roles, component‑specific tokens), and how they integrate into design systems.
• Proficiency in JavaScript/TypeScript, HTML5, modern CSS, and frontend build tooling (Webpack, Vite, Babel, npm/Yarn).
• Familiarity with design system methodologies and component‑driven development.
• Strong knowledge of web accessibility (WCAG) and responsive design principles.
• Experience integrating frontend components with APIs and working within modern UI architectures.
• Excellent problem‑solving, communication, and cross‑functional collaboration skills.
• Track record of commitment to prior employers.
• Nice to have: Experience with large‑scale or workflow‑heavy enterprise applications.
• Nice to have: Background with testing frameworks such as Jest, React Testing Library, or Cypress.
• Nice to have: Experience maintaining or scaling complex design systems using Tailwind CSS, Storybook.js, and design tokens.
• Nice to have: Familiarity with CI/CD pipelines and cloud‑native development environments.

Benefits

• Comprehensive healthcare coverage (Medical, Vision, Dental, Prescription Drug, Life, Legal, and supplementary insurance).
• Mental health counseling services for individuals and families, both virtual and in‑person.
• Commuter and parking benefits.
• 401(k) retirement plan with matching contributions.
• Employee stock purchase plan.
• Paid time off and tuition reimbursement.
• On‑site fitness center and/or reimbursed membership costs (location dependent), with yoga studio, Peloton, personal training, and group exercise classes.
• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups.
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks.

What’s in it for you?

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed. We offer generous compensation and performance‑based incentives, internal training, tuition reimbursement, and a comprehensive benefits package.

Equal Employment Opportunity

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. CoStar Group is an affirmative action employer and a rapidly growing employer of disabled people of color and older people.

CoStar Group maintains a drug‑free workplace and performs pre‑employment substance abuse testing. This position does not provide visa sponsorship. No fee is charged for applying for this position.