Senior Software Engineer

Costar
Arlington, TX
Senior Software Engineer

Job Description

Overview

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, 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. 

We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.

CoStar

CoStar is the global leader in commercial real estate information, analytics and news. Commercial Real Estate industry professionals around the globe use CoStar to access the most comprehensive data to make decisions with confidence. CoStar delivers immediate, verified commercial real estate information on over 5.9 million properties across every market.   

Learn more about CoStar . 

As CoStar’s next Senior Software Engineer, you will have a direct impact on highly visible CoStar Suite web applications that touch millions of users. You continuously lean emerging technologies and architecture advancements and apply the learnings to improve CoStar’s software products.

This position is located in Arlington, VA and is in onsite Monday – Thursday, option to work from home on Friday.

Responsibilities

  • Design and develop high performance web applications used by thousands of users globally
  • Drive continuous improvement by focusing on engineering excellence
  • Influence CI/CD pipeline improvements
  • Collaborate closely with other Software Engineers across the organization.
  • Mentor junior developers, review code and architecture, and promote software development best practices
  • Continually evaluate emerging technologies to identify opportunities, trends and best practices that can be used to strengthen CoStar’s technology platform and development practices
  • Develop and maintain an in-depth working knowledge of the CRE Industry and CoStar’s business model / technology

Basic Qualifications

  • Bachelor’s Degree required from an accredited, not for profit university or college.
  • A track record of commitment to prior employers
  • 6+ years of production development experience in modern technologies, like React, Vue, TypeScript, NodeJS, C#, .Net, OpenSearch, Kafka, SQL, NoSQL
  • A demonstrable track record of building and launching successful products and platforms
  • Experience with cloud technologies like AWS, Cloud Managed Services, etc.
  • Experience in Agile/Scrum processes, and Continuous delivery practices
  • Experienced in unit, performance, and automation testing
  • Deeply understand what drives the business for which you are building software
  • Take an active role in mentoring developers with ability to build consensus

Preferred Qualifications and Skills

  • Experience managing a large Enterprise level code base, code quality and dependencies
  • Experience with C#, NodeJS, and/or React in particular
  • Excellent written and verbal communication skills
  • Commercial Real Estate (CRE) knowledge is a bonus

What’s in it for You

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.

We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, tuition reimbursement, and an inter-office exchange program.

Our benefits package includes (but is not limited to):

  • Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
  • Life, legal, and supplementary insurance
  • Virtual and in person mental health counseling services for individuals and family
  • Commuter and parking benefits
  • 401(K) retirement plan with matching contributions
  • Employee stock purchase plan
  • Paid time off
  • Tuition reimbursement
  • On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
  • Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
  • Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position.

#LI-AR

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing

Posted 2025-12-10

Recommended Jobs

Sales Account Executive - Freight

Cargo Express Freight
Dallas, TX

Expanding to Dallas TX,  Cargo Express Freight is a fast-growing, asset-based logistics company built on reliability, innovation, and unmatched customer service. With the best technology and know-how…

View Details
Posted 2026-01-09

Specialty Vehicle Technician

Temple, TX

Specialty Vehicle Technician  Are you a skilled technician with a passion for working on specialty vehicles? We are seeking a dedicated and knowledgeable individual to join our team as a Specialty …

View Details
Posted 2025-08-23

Cloud Integration SME

Oasis Systems LLC
San Antonio, TX

Cloud Integration SME Location San Antonio, TX (Lackland AFB area) : Overview: Cloud integration SME Be the Difference Astrion offers comprehensive services that boost preparedness, optimize perf…

View Details
Posted 2026-01-07

Front Desk Spa Associate

Hand and Stone Massage and Facial Spa
El Paso, TX

Front Desk Spa Associate Location El Paso, TX (Northwest area) : Hand & Stone Massage and Facial Spa is a national franchise that specializes in massage, facials, and hair removal services. With ove…

View Details
Posted 2026-01-10

Postdoctoral Fellow - Urology, Dr. Gateno lab

Houston Methodist
Fannin County, TX

At Houston Methodist, the Postdoctoral Fellow position is responsible for performing basic research duties under the supervision/direction of a Physician and/or Principal Investigator. This position m…

View Details
Posted 2026-01-12

Fullstack Developer at mission-driven edtech SaaS platform

Jack & Jill/external Ats
Arlington, TX

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack . …

View Details
Posted 2026-01-13

Pre Service Patient Access Manager FT ROC

STHS-ROC
Edinburg, TX

Responsibilities POSITION SUMMARY: The TX-OK Market Pre-services/Insurance Verification Manager will manage and direct activities/responsibilities for Pre-Services and Insurance Verification …

View Details
Posted 2026-01-12

Plant Health Coordinator - (FT)

Dal-Tile
Dallas, TX

The Plant Health Coordinator (PMO ANALYST) provides IT support for all aspects of manufacturing technology, ensuring that production facilities have excellent service, maintain uptime expectations o…

View Details
Posted 2025-10-21

3rd Shift Production Worker

VIP Staffing
San Marcos, TX

We are now hiring Production Workers for a Manufacturing company in San Marcos, TX. These positions are starting ASAP! Please submit your resume to this posting and call our office at 830-629-2525 fo…

View Details
Posted 2025-12-23