Analytics - Senior Software Engineer - Front End
About The Position
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.
Requirements
- Bachelor’s Degree required from an accredited, not-for-profit, in-person college/university
- A 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
Nice To Haves
- 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
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.
Benefits
- 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), with yoga studio, Pelotons, personal training, group exercise classes
- Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
- Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Number of Employees
5,001-10,000 employees
