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Software Engineer II

CoStar Group

Salary not specified
Dec 18, 2025
Richmond, VA, US
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CoStar Group is seeking a Software Engineer to support the Web Enterprise team in building software tools that power their proprietary CRM platform and support sales and research teams across various websites.

Requirements

  • Strong proficiency in React.js, TypeScript and Tailwind CSS.
  • Deep understanding of HTML, CSS, JavaScript, and responsive design.
  • Solid understanding of RESTful APIs and familiarity with front-end build tools (e.g., Webpack, Babel).
  • Strong grasp of web standards, accessibility, and security best practices.
  • Experience working in Agile development environments.
  • Experience in unit, performance and automation testing.
  • Experience with any state management libraries like Redux, Context API.

Responsibilities

  • Develop and maintain engaging, responsive, and high-performance web applications using React, TypeScript, and Tailwind CSS.
  • Build reusable, scalable, and secure UI components and libraries with a focus on maintainability and performance.
  • Collaborate with cross-functional teams including designers, backend developers, and product managers to transform business needs into technical solutions.
  • Contribute to and maintain shared component libraries and front-end architecture.
  • Write comprehensive unit and integration tests using tools like Jest, React Testing library.
  • Participate actively in code reviews, pair programming, and agile ceremonies.
  • Take an active role in mentoring other developers.

Other

  • Bachelor’s Degree required from an accredited, not for profit university or college, in-person college/university.
  • 3+ years of production development experiencing using modern front-end frameworks.
  • Excellent communication, collaboration, and problem-solving skills.
  • A track record of commitment to previous employers.
  • Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug