Senior Software Engineer

CoStar Group

Confirmed live yesterday High trust

Hybrid

Quick summary

Work type: Hybrid
Location: San Diego, CA
Salary: $124,000–$187,000 / yr
Employment: Full-time
Posted: 5 days ago
Freshness: Confirmed live yesterday
Nearby: 99+ roles within 25 mi

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $164k

This role $156k

$109k $224k

below market most similar roles pay here above market

This role pays less than 63% of similar roles. Most pay $149,500–$178,175 — the blue band above. At the midpoint, this role pays about $156k versus about $164k for comparable roles.

Based on 240 similar postings.

Employer

About CoStar Group

CoStar Group is the leading provider of commercial real estate information, analytics, and online marketplaces, including CoStar, Apartments.com, and LoopNet platforms. Industry: Commercial Real Estate Data & Analytics

CoStar Group currently has 59 open roles on FindRole.

Listed pay typically runs $133,000–$190,000 across 59 roles with salary data.

Most-posted roles

View all roles at CoStar Group

At a glance

TL;DR · Senior Software Engineer

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The Senior Software Engineer joins the engineering team to design, build, and maintain production applications while developing scalable, cloud-native solutions. The role involves building and operating systems on AWS, creating APIs, and developing backend services. A key focus is leveraging Claude for AI-assisted development, including code generation, refactoring, debugging, and analysis. The successful candidate will participate in system design, code reviews, and technical decision-making to improve application performance, scalability, and reliability. Required technical skills include C# and .NET, AWS services like EC2, ECS/EKS, Lambda, S3, RDS, DynamoDB, and CloudWatch, along with Git-based workflows. Preferred experience includes Databricks, microservices, CI/CD pipelines, and Infrastructure-as-Code using Terraform, CloudFormation, or CDK to solve complex real estate information and online marketplace technical problems.

What does a Software Engineer earn in California?

Median $214500 from 1193 postings across 76 companies.

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Skills

C# .NET .NET Core AWS Claude EC2 ECS EKS Lambda S3 RDS DynamoDB CloudWatch Databricks Microservices CI/CD Terraform CloudFormation CDK Git APIs

What you'll do

Design, build, and maintain production applications using C# and .NET.
Use Claude for AI-assisted code generation, refactoring, debugging, and analysis.
Build and operate scalable, cloud-native solutions on AWS.
Participate in system design, code reviews, and technical decision-making.
Improve application performance, scalability, and reliability.
Mentor engineers and contribute to engineering best practices.

What we're looking for

Bachelor's degree from an accredited, not-for-profit, in-person college/university.
Strong experience with C# and .NET / .NET Core.
Hands-on AWS experience with EC2, ECS/EKS, Lambda, S3, RDS, DynamoDB, and CloudWatch.
Experience building APIs and backend services.
Solid understanding of software design principles.
Experience with Git-based workflows.
Practical experience using Claude for coding or code review (preferred).
Experience with Databricks, microservices, CI/CD, or Infrastructure-as-Code (preferred).

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