Job Description
CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives.
We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We’ve continually refined, transformed, and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.
BizBuySell operates the internet's largest and most heavily trafficked business for sale marketplaces, with more business listings, more unique users, and more leads delivered than any other platform. Our customers include small business buyers, sellers, owners, brokers, and others who need our information and services to help them buy or sell a business or franchise. Buying and selling a business is time consuming and arduous process. We are on a mission to automate that complex process into easy and manageable one for both sellers as well as buyers. This role is central to building compelling experience in our platform with native support to multiple languages, currencies, and locale preferences.
BizBuySell is looking for a Frontend Engineer who is passionate about building intuitive, high-performance web experiences that simplify the complex process of buying and selling a business for both buyers and sellers.
Learn more about BizBuySell - www.bizbuysell.com
This position is located in San Francisco and is 5 days onsite.
Responsibilities:
Design, develop, and support high-traffic, real-time web applications using ASP.NET Core MVC on the backend and Angular, Vue, TypeScript, HTML5, CSS, and JavaScript on the frontend, ensuring they are performant, maintainable, and reusable.
Build responsive, accessible (WCAG-compliant) interfaces that work reliably across browsers and devices.
Lead in establishing architectural best practices and mentor junior team members
Analyze technical requirements and architect new components and web pages.
Implement product features, refine specifications, and continuously improve code quality.
Apply software design patterns and best practices for building reusable and maintainable code.
Participate in code reviews, source control management, build automation, and testing processes.
Take ownership of assigned tasks and deliver solutions from concept to implementation.
Collaborate with engineers, product managers, and business partners on product design, feature development and delivery.
Gain a deep understanding of the company's business domain and products.
Basic Qualifications:
Bachelor's degree from an accredited, not-for-profit, in-person University or College
A track record of commitment to prior employers.
Strong working knowledge of modern web technologies (HTML5, CSS, JavaScript).
Experience with a modern SPA framework (Angular, Vue, etc.) and TypeScript.
Proven ability to write clean, maintainable, and well-documented code.
Experience working in an Agile development environment.
Excellent communication and collaboration skills.
Preferred Qualifications:
Experience building and deploying web applications to a cloud platform (AWS, Azure).
Experience with relational databases (e.g., SQL Server, MySQL).
Experience with software testing frameworks (e.g., Jest, Mocha).
Deep understanding of software design patterns and principles.
Experience in microservices architectures.
Experience mentoring junior developers.
Effective use of AI-assisted development tools (e.g., Claude Code, Copilot) to accelerate delivery while maintaining strong code quality and architectural judgment.
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 you generous compensation and performance-based incentives. CoStar Group also invests in
your professional and academic growth with internal training and tuition reimbursement.
Our benefits package includes (but is not limited to):
Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
Life, legal, and supplementary insurance
Virtual and in person mental health counseling services for individuals and family
Commuter and parking benefits
401(K) retirement plan with matching contributions
Employee stock purchase plan
Paid time off
Tuition reimbursement
On-site fitness center and/or reimbursed fitness center membership costs (location dependent)
Access to CoStar Group’s Employee Resource Groups
Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
The final salary or hourly rate offered for this role will fall within the range set forth below based on a variety of factors, including but not limited to, geographic location, skills, and competencies.
Base Compensation: $125,000 - $172,000
We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position
#LI-AV1
#BizBuySell
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing
Skills Required
- Bachelor's degree from an accredited, not-for-profit, in-person University or College
- A track record of commitment to prior employers
- Strong working knowledge of modern web technologies (HTML5, CSS, JavaScript)
- Experience with a modern SPA framework (Angular, Vue) and TypeScript
- Proven ability to write clean, maintainable, and well-documented code
- Experience working in an Agile development environment
- Excellent communication and collaboration skills
- Experience building and deploying web applications to a cloud platform (AWS, Azure)
- Experience with relational databases (e.g., SQL Server, MySQL)
- Experience with software testing frameworks (e.g., Jest, Mocha)
- Deep understanding of software design patterns and principles
- Experience in microservices architectures
- Experience mentoring junior developers
- Effective use of AI-assisted development tools (e.g., Claude Code, Copilot)
CoStar Group Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CoStar Group and has not been reviewed or approved by CoStar Group.
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Healthcare Strength — Healthcare coverage is described as extensive, spanning medical, dental, vision, and prescription plans, with additional life and supplementary insurance options. Mental health counseling and wellness incentives are also part of the package, reinforcing the sense of strong health support.
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Wellbeing & Lifestyle Benefits — Lifestyle perks include commuter and gym reimbursements and daily lunch, alongside office snacks/drinks and company social events. Fitness stipends and wellness programs add to the perceived day-to-day value of the rewards package.
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Equity Value & Accessibility — Opportunities to become a shareholder via stock-related programs are highlighted as a meaningful element of total rewards. Equity and employee stock purchase options are positioned as an additional path to value beyond base pay.
CoStar Group Insights
What We Do
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.
