Senior Full-Stack Engineer: Build Scalable Web Apps

CoStar Group, Inc.; Irvine (CA); On-site; USD 124,000 - 187,000; Full time

Benefits offered by this job

Comprehensive healthcare coverage

401(k) retirement plan with matching contributions

Paid time off

Tuition reimbursement

On‑site fitness center or membership reimbursement

Job summary

CoStar Group, Inc. is seeking a Senior Full Stack Engineer in Irvine, CA to design and develop software for high-traffic web applications impacting over 10 million users. The ideal candidate possesses over 7 years of experience in C# .Net, a Bachelor's degree, and a strong commitment to quality and performance.

This position offers a competitive salary range of $124,000 - $187,000 and a robust benefits package including healthcare, retirement plans, and employee wellness programs.

Qualifications

• 7+ years of production development experience with C# .Net or .Net Core.
• Track record of commitment to prior employers.
• Demonstrable track record of building and launching successful products and platforms.

Responsibilities

• Design and develop using Object‑Oriented design principles.
• Write unit‑testable C# software.
• Participate and drive continuous improvement within Agile/Scrum teams.

Skills

C# .Net

Vue, React, or Angular in TypeScript

AWS S3, SQS, Dynamo, ElastiCache, Apache Kafka, and Datadog

AI coding tools (Claude Code, GitHub Copilot)

Education

Bachelor’s Degree from an accredited university

Tools

MS SQL or MySQL

Job description

CoStar Group, Inc. is seeking a Senior Full Stack Engineer in Irvine, CA to design and develop software for high-traffic web applications impacting over 10 million users. The ideal candidate possesses over 7 years of experience in C# .Net, a Bachelor's degree, and a strong commitment to quality and performance.

This position offers a competitive salary range of $124,000 - $187,000 and a robust benefits package including healthcare, retirement plans, and employee wellness programs.