Costar Group

Costar Group

Provides commercial real estate data, analytics, and marketing services.

4,700Commercial Real EstateResidentialApartmentsHospitalityIndustrialRetailOfficeMultifamilyLandInvestment SalesWebsite

Lender - Senior Software Engineer (C#/AWS/Platform Engineering)

Develop and maintain scalable data-driven analytics applications using C#/.NET on AWS.

San Diego, California, United States
124k - 202k USD
Full Time
Intermediate (4-7 years)
-pre-employment substance abuse testing

Job Highlights

Environment
Office Full-Time
Security Clearance
-pre-employment substance abuse testing

About the Role

The Senior Software Engineer role is based in San Diego (UTC area) with a hybrid schedule—on‑site Monday through Thursday and remote on Friday—focused on the full‑lifecycle development of a critical analytics product. • Design, build, test, and deploy scalable, reusable, maintainable applications handling large data volumes. • Own the full development lifecycle from coding to production support. • Collaborate with engineers, product owners, designers, and leadership. • Serve as a trusted advisor on technical architecture, design, and code quality. • Advocate for technical and process improvements, exploring new tools and best practices. • Develop deep understanding of CoStar’s business and analytics products. • Apply software development best practices: code reviews, source control, builds, testing, and operations.

Key Responsibilities

  • app development
  • full lifecycle
  • technical architecture
  • process improvement
  • devops practices
  • team collaboration

What You Bring

• Hold a Bachelor’s degree from an accredited institution. • Minimum 7 years of professional software development experience. • Strong object‑oriented programming fundamentals and experience with C#, .NET Framework, Web API, and Node. • Familiarity with modern front‑end technologies such as JavaScript and React. • Expertise in relational databases, e.g., SQL Server. • Proficient with source control tools like Git or TFS. • Preferred: experience with cloud platforms (AWS or Azure). • Preferred: strong analytical and problem‑solving abilities. • Preferred: exposure to NoSQL technologies (Redis, Neo4j, etc.).

Requirements

  • bachelor's
  • 7+ years
  • c#
  • react
  • sql server
  • git

Benefits

CoStar offers a collaborative, innovative culture with generous compensation, performance‑based incentives, internal training, tuition reimbursement, and an inter‑office exchange program. Benefits include comprehensive health coverage, life and legal insurance, mental‑health services, commuter and parking perks, 401(k) matching, an employee stock purchase plan, paid time off, fitness amenities, DEI employee resource groups, and complimentary gourmet coffee and snacks. The base salary for this position ranges from $124,000 to $202,000, depending on relevant skills and experience, and is complemented by the extensive benefits package.

Work Environment

Office Full-Time

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