Frontend Engineer - BizBuySell - San Francisco
CoStar GroupBase Salary
$125k - $172k/yr
Responsibilities
- Design, develop, and support high-traffic, real-time web applications using ASP.NET Core MVC, Angular, Vue, TypeScript, HTML5, CSS, and JavaScript.
- Build responsive, accessible, performant interfaces that work across browsers and devices.
- Establish architectural best practices, architect new components and pages, and mentor junior team members.
- Implement product features, refine specifications, and improve code quality through reusable design patterns and maintainable code.
- Participate in code reviews, source control management, build automation, and testing processes.
- Own assigned work from concept through implementation and collaborate with engineering, product, and business partners.
Requirements
- Bachelor’s degree from an accredited, not-for-profit, in-person university or college.
- Strong working knowledge of HTML5, CSS, and JavaScript.
- Experience with a modern SPA framework such as Angular or Vue and with TypeScript.
- Demonstrated ability to write clean, maintainable, and well-documented code.
- Experience working in an Agile development environment and strong communication and collaboration skills.
- Preferred experience includes AWS or Azure, SQL Server or MySQL, Jest or Mocha, software design patterns, microservices architectures, mentoring junior developers, and AI-assisted development tools such as Claude Code or Copilot.
Benefits
- Five days per week onsite in San Francisco.
- Comprehensive medical, vision, dental, prescription drug, life, legal, and supplemental insurance coverage.
- Virtual and in-person mental health counseling for individuals and families.
- Commuter and parking benefits.
- 401(k) retirement plan with matching contributions and employee stock purchase plan.
- Paid time off, tuition reimbursement, internal training, and professional and academic growth support.
- On-site fitness center or reimbursed fitness center membership costs depending on location.
- Employee Resource Groups, complimentary beverages, fresh fruit, and healthy snacks.
Tech Stack
Categories
About CoStar Group
CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; Homes.com, the fastest-growing residential real estate marketplace; and Domain, one of Australia’s leading property marketplaces. CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking; Ten-X, an online platform for commercial real estate auctions and negotiated bids; and OnTheMarket, a leading residential property portal in the United Kingdom. CoStar Group’s websites attracted over 143 million average monthly unique visitors in the third quarter of 2025, serving clients around the world. Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence. From time to time, we plan to utilize our corporate website as a channel of distribution for material company information. For more information, visit CoStarGroup.com.