Software Engineer (C#/.NET)

As a Software Engineer (C#/.NET) at CoStar Group, you’ll focus on building large, distributed, API-driven systems that serve tens of thousands of users. Your core responsibilities will include producing highly efficient and maintainable code, participating in design and code reviews, and continuously evaluating new technologies. This position places strong emphasis on utilizing C#, .NET Framework, JSON, SQL Server, and AWS, so familiarity with these technologies is crucial.

CoStar Group is looking for a Software Engineer (C#/.NET) with a Bachelor’s Degree in a relevant field and at least 4 years of deep experience in .NET development. Candidates should demonstrate a proven track record in building successful products, particularly those that manage large datasets. Experience with T-SQL programming, application performance testing, as well as a solid understanding of software design principles is essential for this role.

The Software Engineer (C#/.NET) at CoStar Group mainly utilizes C#, the .NET Framework, SQL Server, and JSON in their day-to-day work. Additionally, experience with cloud platforms such as AWS or Azure is beneficial, as you will be working on backend services hosted on these technologies, with an emphasis on reliability and performance.

At CoStar Group, the work culture is collaborative and innovative, filled with opportunities to learn and grow. As a Software Engineer (C#/.NET), you’ll interact with some of the best minds in the industry, participating in discussions that foster technology exchange and mentorship. There's also a healthy work-life balance with a flexible schedule that includes in-office work Monday through Thursday and remote work on Fridays.

CoStar Group offers numerous opportunities for growth for a Software Engineer (C#/.NET). The company invests in your professional development with internal training and tuition reimbursement policies. You'll also have access to mentorship programs and the chance to collaborate with teams on innovative projects, helping you to refine your skills and advance in your career.

In answering this question, showcase the depth of your experience—mention specific projects where you utilized C# and .NET technologies. Discuss the roles you played in these projects and any challenges you overcame, highlighting your problem-solving skills and technical expertise in the process.

Explain your methodology for software design, discussing how you prioritize factors such as scalability, maintainability, and performance. Provide examples of design patterns you’ve implemented and how they benefited your projects, illustrating your deep understanding of software engineering principles.

Discuss your experience with T-SQL and database design, highlighting the specific strategies you’ve used to optimize performance. This could include indexing, query optimization, and monitoring tools. Providing an example will strengthen your response as it shows real-world application of your strategies.

Detail your approach to maintaining code quality, such as using unit testing, continuous integration, and code reviews. Cite instances where these practices led to improved project outcomes or helped avoid issues, underscoring your commitment to producing clean, reliable code.

Provide a scenario where you faced a major technical challenge and explain the steps you took to resolve it. Discuss the implications of the challenge and how your solution ultimately improved the system, highlighting your analytical thinking and technical skills.

Discuss your familiarity with AWS or other cloud services, emphasizing projects where you leveraged these technologies. Provide insights into how you utilized cloud resources to enhance application performance and reliability, showcasing your capability in moving traditional applications to the cloud.

Share your strategies for continuous learning, whether it’s through online courses, attending industry conferences, or participating in developer forums. Mention any relevant technologies you’ve recently learned or are excited about, showing your commitment to professional development and innovation.

Highlight a specific project where collaboration was essential. Discuss your role, the tools used for communication, and how you navigated disagreements or differences of opinion. Emphasize how collaboration led to a successful project outcome.

Talk about your experience with mentoring, specifying your approach to guiding junior developers. This could include sharing resources, providing constructive feedback, or leading by example. Discuss the importance of nurturing talent and fostering a supportive learning environment.

Illustrate the importance of documentation in your work, explaining how it can aid in project clarity and maintainability. Provide examples of how thorough documentation helped previous teams understand complex systems and avoid miscommunication.