Debt Solutions - Lead Software Engineer

CoStar Group • San Diego, CA

1d • Hybrid

About The Position

CoStar Group is seeking an experienced Lead Software Engineer to drive full-lifecycle development of its customer-facing Real Estate Analytics product. The Analytics team builds data-intensive applications that use information collected by CoStar Research to provide customers with a fast, reliable, and intuitive analytics platform. The role is based in San Diego (UTC Area), with in-office work Monday through Thursday and work from home on Friday.

The engineer will design, build, test, and deploy scalable, reusable, and maintainable applications that handle large amounts of data, using AI-assisted development workflows where appropriate. They will take ownership of work from development and testing through deployment and production support, collaborate with engineers and cross-functional partners on technical designs and implementations, contribute to technical architecture and code quality, advocate for team improvements, and develop a deep understanding of CoStar’s business and analytics products.

Requirements

• Bachelor’s degree from an accredited, not-for-profit, in-person college or university.
• Track record of commitment to prior employers.
• 10 or more years of professional software development experience.
• Experience leveraging AI-assisted development workflows in a production environment, using tools such as GitHub Copilot or Claude Code to generate, review, and improve code.
• Solid understanding of and experience with object-oriented programming.
• Deep knowledge of modern server-side languages and application frameworks, including C#, .NET Framework, Web API, and Node.
• Knowledge of modern front-end languages and application frameworks, including JavaScript and React.
• Expertise with relational database systems such as SQL Server.
• Expertise in software development best practices, including standards, code reviews, source control, builds, testing, and operations.
• Expertise with source control systems such as Git or TFS.
• Currently eligible to work full-time in the United States; the employer does not provide visa sponsorship.

Nice To Haves

• Expertise with cloud platforms such as AWS or Azure.
• Strong analytical and problem-solving abilities.
• Experience with NoSQL technologies such as Redis or Neo4j.

Responsibilities

• Design, build, test, and deploy scalable, reusable, and maintainable applications that handle large amounts of data.
• Use AI-assisted development workflows where appropriate.
• Own work from development and testing through deployment and production support, maintaining high standards for correctness, reliability, and maintainability.
• Collaborate with engineers, product owners, designers, and leadership on technical designs and implementations.
• Serve as a trusted team member on technical architecture, design, and code.
• Advocate for technical and non-technical improvements within teams, including AI-assisted development workflows.
• Develop a deep understanding of CoStar’s business and analytics products.

Benefits

• Generous compensation and performance-based incentives.
• Professional and academic growth opportunities through internal training and tuition reimbursement.
• Comprehensive medical, vision, dental, and prescription drug coverage.
• Life, legal, and supplementary insurance.
• Virtual and in-person mental health counseling services for individuals and families.
• Commuter and parking benefits.
• 401(k) retirement plan with matching contributions.
• Employee stock purchase plan.
• Paid time off.
• On-site fitness center and/or reimbursed fitness center membership costs, depending on location; facilities and offerings may include a yoga studio, Pelotons, personal training, and group exercise classes.
• Access to Employee Resource Groups.
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior