Analytics - Senior Software Engineer - Front End

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Job Description

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OVERVIEW  

CoStar delivers real-time, verified commercial real estate data that helps clients confidently spot great opportunities and make smart choices ahead of competitors. By combining the power of CoStar’s independent research organization – the industry’s largest – with global data delivery, software, and application solutions, clients can act on opportunities with confidence. 

The Analytics team is responsible for the development of CoStar's customer-facing Real Estate Analytics products.  We think big, creating innovative data-intensive applications that take up the vast amount of data collected by our CoStar Research teams to create a fast, reliable and intuitive analytics platform for our customers.  We are a collaborative group with a mix of big data, API/platform and front-end skills, and we are growing rapidly to help invent the future of Real Estate Analytics.   

We are searching for an experienced Senior Software Engineer – Front End to join our team and drive the full-lifecycle development of this critical product.  

 This position is located in San Diego (UTC Area) and is in office Monday through Thursday with work from home on Friday.

RESPONSIBILITIES 

Designing, building, testing, and deploying scalable, reusable, and maintainable applications that handle large amounts of data. Taking ownership of your work, from development and testing to eventual deployment and support in production. Collaborating with other engineers, product owners, designers, and leadership. Mentor and guide junior and mid-level engineers, raising the technical bar through code reviews, pairing, and design discussions. Becoming a trusted team member in technical architecture, design and code. Advocating for evolution and improvement - both technical and non-technical - within our teams and across development teams at CoStar. Explore new technologies, tools and best practices. Gaining a deep understanding of the CoStar business, including the Analytic products. 

BASIC QUALIFICATIONS 

Bachelor’s Degree required from an accredited, not-for-profit, in-person college/universityA track record of commitment to prior employers 5+ years of modern front-end experience who can ramp up quickly Strong proficiency in JavaScript, TypeScript, and at least one modern front-end framework (preferably React). Demonstrated ability to design and implement complex UI architectures and component systems. Experience using REST APIs, GraphQL and handling data-driven UI Knowledge of CSS frameworks (Tailwind preferred) Solid understanding of browser behavior, debugging tools, and performance basics Exposure to Node.js or backend-for-frontend (BFF) patterns Comfortable with Git, PR workflows, and code review best practices Ability to break down ambiguous problems, create clear technical designs, and deliver independently with minimal guidance. Comfort using AI-assisted engineering tools like GitHub Copilot to enhance productivity and quality 

PREFERRED QUALIFICATIONS AND SKILLS 

Expertise with micro-frontend architectures Familiarity with accessibility (WCAG), performance optimization techniques Experience with D3 or other charting libraries Understanding of Datadog RUM/APM, logging, or observability Experience with Playwright, Jest, or other testing frameworks Strong analytical and problem-solving abilities 

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, tuition reimbursement, and an inter-office exchange program.Our benefits package includes (but is not limited to):Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription DrugLife, legal, and supplementary insuranceVirtual and in person mental health counseling services for individuals and familyCommuter and parking benefits401(K) retirement plan with matching contributionsEmployee stock purchase planPaid time offTuition reimbursementOn-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classesAccess to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource GroupsComplimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

This position offers a base salary range of $124,000 - $202,000, based on relevant skills and experience and includes a generous benefits plan.

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CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing