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# Software Engineer II - LoopNet

- **Company:** CoStar Group
- **Location:** Orange County, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $119,000.0 - $165,000.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Amazon S3, Automation of Tests, C Sharp (Programming Language), Databases, Extract Transform Load (ETL), Relational Databases, Software Debugging, Software Design Patterns, Microsoft SQL Server, MySQL, Object-Oriented Software Development, Performance Tuning, Scrum Methodology, Software Construction, Software Engineering, SQL Stored Procedures, SQL Databases, TypeScript, Datadog, .NET Core, GitHub Copilot, ReactJS, Amazon ElastiCache, Software Security, Vue.js, AngularJS, Git Flow, Apache Kafka, Amazon Simple Queue Service (SQS), Code Restructuring
- **Published:** July 22, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=d39f61c2780da2ed

## About the Role

* Bachelor's Degree required from an accredited, not-for-profit in person university or college.
 * A track record of commitment to prior employers.
 * Working knowledge Vue, React or Angular in TypeScript
 * Experience with AWS S3, SQS, Dynamo, ElastiCache, Apache Kafka and Datadog
 * Leverage AI Coding Tools for development, refactoring, and debugging (Claude Code, GitHub Copilot or equivalent).
 * 5+ years of production development experience with C# .Net (or .Net Core)
 * A demonstrable track record of building and launching successful products and platforms
 * Deliver products that meet specifications and performance SLA
 * Deeply understand what drives the business for which you are building software

PREFERRED QUALIFICATIONS:

 * Experience in relational database design (MS SQL or MySQL) including performance tuning
 * Application security knowledge and experience with Git-based workflows.
 * Take an active role in mentoring developers with ability to build consensus
 * Experienced in unit, performance, and automation testing

## Description

* Design and develop using Object Oriented design principles and software design patterns to attain high reusability and maintainability.
 * Deep knowledge and experience in writing unit testable software with C#
 * Develop an in-depth understanding of CoStar's product architecture and frameworks. Maintain and contribute to CoStar's product platform as necessary.
 * Develop database stored procedures and SQL scripts/ETL jobs that meet CoStar database standards to implement product requirements.
 * Participate and drive continuous improvement within CoStar's Agile/Scrum teams.
 * Build consensus among different teams working on software development projects.
 * Facilitate discussions among other .NET and database developers to exchange new ideas and improvements.
 * Continually evaluate emerging technologies to identify opportunities, trends and best practices that can be used to strengthen CoStar's technology platform and development practices.


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