Costar Group
Provides commercial real estate data, analytics, and marketing services.
Lender - Lead Software Engineer (C#/AWS)
Lead engineer building scalable data‑analytics apps using C#/AWS
Job Highlights
About the Role
CoStar delivers real‑time, verified commercial real estate data that helps clients spot opportunities and make smart choices ahead of competitors. By combining the industry’s largest independent research organization with global data delivery, software, and application solutions, CoStar enables customers to act confidently. • Design, build, test, and deploy scalable, reusable, maintainable applications handling large data volumes. • Own end‑to‑end development, testing, deployment, and production support. • Collaborate with engineers, product owners, designers, and leadership. • Serve as a trusted authority on technical architecture, design, and code quality. • Champion technical and process improvements, exploring new tools and best practices. • Develop deep knowledge of CoStar’s analytics products and business.
Key Responsibilities
- ▸scalable apps
- ▸fullstack development
- ▸technical architecture
- ▸process improvement
- ▸team collaboration
- ▸analytics expertise
What You Bring
We are looking for an experienced Lead Software Engineer to drive the full‑lifecycle development of this critical product. The role is based in San Diego (UTC area) with on‑site work Monday through Thursday and remote work on Friday. The position requires a bachelor’s degree and at least ten years of professional software development experience, strong object‑oriented programming skills, and deep expertise in C#, .NET (Framework and Core), Web API, and relational databases such as SQL Server. Candidates should also be proficient with source‑control tools (Git or TFS) and have a solid grasp of software development best practices; cloud experience (AWS or Azure) and knowledge of NoSQL, front‑end frameworks, or React are a plus.
Requirements
- ▸c#
- ▸.net
- ▸sql server
- ▸git
- ▸aws
- ▸bachelor's
Benefits
CoStar offers a collaborative, innovative culture with generous compensation, performance‑based incentives, and a comprehensive benefits package that includes health, dental, vision, life and legal insurance, 401(k) matching, stock purchase plan, paid time off, tuition reimbursement, and wellness programs such as an on‑site fitness center. The base salary range is $166,000‑$222,000, dependent on skills and experience.
Work Environment
Office Full-Time