LoopNet - Senior Full Stack Engineer

Responsibilities

• 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.

Requirements

• Bachelor’s Degree required from an accredited, not-for-profit 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).
• 7+ 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 SLAs.
• Deeply understand what drives the business for which you are building software.

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.

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.

Pay

Base salary range of $124,000-$187,000, based on relevant skills and experience and includes a generous benefits plan.

Schedule

This position offers 4 days a week onsite with 1 day work from home.