Software Engineer II

CoStar Group

Confirmed live yesterday Trusted
Hybrid

Quick summary

Work type
Hybrid
Location
Irvine, CA
Salary
$118,000–$154,000 / yr
Posted
13 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $147k
This role $136k
$98k most similar roles pay here $203k

This role pays less than 68% of similar roles. Most pay $124,300–$169,050 — the shaded band above. At the midpoint, this role pays about $136k versus about $147k 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 65 open roles on FindRole.

Listed pay typically runs $133,000–$190,000 across 63 roles with salary data.

Most-posted roles

View all roles at CoStar Group

At a glance

TL;DR · Software Engineer II

LoopNet - Software Engineer II will join the engineering team to build scalable, high-quality systems across multiple products and brands. The role involves making key architecture decisions, mentoring other engineers, and utilizing modern AI-driven development practices to accelerate delivery and improve code quality. Day-to-day responsibilities include building APIs, backend systems, and ensuring performance SLAs are met through unit, performance, and automated end-to-end testing. The required technical stack includes C#, .NET or .NET Core, and AWS cloud development, with specific experience in S3, SQS, DynamoDB, ElastiCache, Apache Kafka, and Datadog. Preferred skills include Vue.js, React, TypeScript, SQL database design, Docker, Kubernetes, and Python for data workflows. The role focuses on the commercial real estate marketplace domain, solving technical challenges related to distributed systems and high-performance software within a large-scale digital platform environment.

What does a Software Engineer earn in California?

Median $214000 from 775 postings across 63 companies.

See salary data

What you'll do

  • Develop scalable, high-quality systems across multiple products using C# and .NET.
  • Build and launch backend systems and APIs based on established software design principles.
  • Integrate AI coding tools like Claude Code or GitHub Copilot to accelerate development and improve code quality.
  • Design and manage cloud infrastructure using AWS services such as S3, SQS, DynamoDB, and ElastiCache.
  • Write unit, performance, and automated end-to-end tests to meet production SLAs.
  • Manage microservices, distributed systems, and containerized environments using Docker and Kubernetes.
  • Perform database design and performance tuning for relational databases like MS SQL or MySQL.
  • Mentor other engineers and lead technical discussions to build team consensus on architecture decisions.

What we're looking for

  • Bachelor’s degree from an accredited, not-for-profit university or college.
  • 4+ years of production development experience with C# and .NET or .NET Core.
  • Experience building APIs, backend systems, and products that meet performance SLAs.
  • Proficiency in writing unit, performance, and automated end-to-end tests.
  • Hands-on experience with AWS services, Apache Kafka, Datadog, and microservices.
  • Experience with AI coding tools such as Claude Code or GitHub Copilot.
  • Knowledge of Vue.js or React in TypeScript and relational database design.
  • Authorization to work full-time in the United States without visa sponsorship.

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