Hiring: Software Engineer II - LoopNet - Irvine, CA Company: LoopNet Location: Irvine, CA Job Posted Time: 2026-09-12 11:42:41 Employment Type: Full-time / On-site Target Skills & Keywords : .NET, AWS, Agile, Angular, C#, Datadog, ETL, Git, GitHub, Kafka, MySQL, React, S3, SQL, SQL Server, SQS, Scrum, TypeScript, Vue About the job Experience: •4+ years of production development experience with C# . Required Skills: •CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. •LoopNet.com. You will have a direct impact on highly visible web applications that touch more than 10,000,000 users. You continuously learn emerging technologies and architecture advancements and apply the learnings to improve LoopNet’s software products. •This position is located in Irvine, CA and offers 4 days a week onsite with 1 day work from home. •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. Qualifications: •Bachelor’s Degree required from an accredited, not-for-profit university or college. •A track record of commitment to prior employers. •Frontend working knowledge (Vue, React or Angular in TypeScript) •Leverage AI Coding Tools for development, refactoring, and debugging (Claude Code, GitHub Copilot or equivalent). •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 •Application security knowledge and experience with Git-based workflows. •Take an active role in mentoring developers with ability to build consensus •When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed. Compensation: •$118,000 - $165,000 / year •401(K) retirement plan with matching contributions Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!