Senior Full-Stack Engineer - BizBuySell - San Francisco, CA
CoStar Group1 day ago
Base Salary
$150k - $210k/yr
Responsibilities
- Design, develop, and support performant, maintainable, reusable high-traffic real-time web applications.
- Build responsive, accessible, cross-browser interfaces supporting multiple languages, currencies, and locale preferences.
- Establish architectural best practices, architect new components and pages, and mentor junior team members.
- Implement product features, refine specifications, improve code quality, and apply software design patterns.
- 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 teams.
Requirements
- Bachelor’s degree from an accredited, not-for-profit, in-person university or college.
- At least 5 years of production development experience with C# .NET or .NET Core.
- Strong knowledge of HTML5, CSS, and JavaScript, plus experience with Angular, Vue, or another modern SPA framework and TypeScript.
- Ability to write clean, maintainable, and well-documented code and apply software design patterns and principles.
- Experience working in an Agile development environment with strong communication and collaboration skills.
- Preferred experience includes AWS or Azure, SQL Server or MySQL, Jest or Mocha, microservices architectures, mentoring junior developers, and AI-assisted tools such as Claude Code or Copilot.
Benefits
- Comprehensive medical, vision, dental, prescription drug, life, legal, and supplementary insurance.
- Virtual and in-person mental health counseling for individuals and families.
- 401(k) retirement plan with matching contributions and an employee stock purchase plan.
- Paid time off, tuition reimbursement, internal training, and professional and academic growth opportunities.
- Commuter and parking benefits, an on-site or reimbursed fitness center, employee resource groups, and complimentary snacks and beverages.
- Located in San Francisco with five days onsite each week.
Tech Stack
Categories
About CoStar Group
CoStar Group builds subscription databases, analytics, and online marketplaces for commercial and residential real estate professionals, investors, and advertisers. Its portfolio includes CoStar (research and data), LoopNet (commercial listings), and Apartments.com (rental listings), generating revenue from subscriptions, listings, and advertising. The company is publicly traded on NASDAQ (CSGP) and is headquartered in Arlington, Virginia, with inclusion in the S&P 500 index.