CoStar Group
Senior Software Engineer – CoStar Group – Richmond, VA
CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. We digitize the real estate industry and empower people to discover properties, insights, and connections that improve their businesses and lives.
We are seeking an accomplished Senior Full-Stack Software Engineer who excels at designing and architecting modern web applications. This engineer will support our Web Enterprise team in building the software tools that power our proprietary CRM platform and support our sales and research teams across Homes.com, CoStar.com, Apartments.com, LoopNet.com, and more.
Location: Richmond, VA – Monday‑Thursday in‑office, Friday remote.
Responsibilities
Build large‑scale, distributed, API‑driven systems for critical internal applications
Identify and resolve issues related to database performance and integrity
Design, document, and implement efficient and scalable database structures
Drive and lead software design, development standards, code reviews, and production releases
Collaborate closely with other Software Engineers across the organization
Continuously evaluate emerging technologies to identify opportunities, trends, and best practices that can strengthen CoStar’s technology platform and development practices
Take an active role in mentoring other developers
Qualifications
Bachelor’s Degree from an accredited university or college
5+ years of production development experience with .NET Core and the ability to integrate front‑end components into a scalable, secure, and maintainable backend architecture
3+ years of database design, T‑SQL programming, and performance tuning experience
Production development experience using modern front‑end frameworks (React, Vue, Angular)
Experience architecting, designing, and building event‑driven applications in an agile environment
Excellent software development and engineering skills on large‑scale, mission‑critical applications
Proficiency in unit and performance testing
A track record of commitment to previous employers
Preferred Qualifications
Experience with Document Data Systems (Dynamo, OpenSearch) is a plus
Comfortable working across the stack with Node.js on the server‑side
Experience with AWS S3, Lambda, SQS, Kafka, Redis is a plus
Experience with Docker and container orchestration is a plus
Experience working on a SOX compliant team is a plus
Benefits
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, Peloton, 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.
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing.
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We are seeking an accomplished Senior Full-Stack Software Engineer who excels at designing and architecting modern web applications. This engineer will support our Web Enterprise team in building the software tools that power our proprietary CRM platform and support our sales and research teams across Homes.com, CoStar.com, Apartments.com, LoopNet.com, and more.
Location: Richmond, VA – Monday‑Thursday in‑office, Friday remote.
Responsibilities
Build large‑scale, distributed, API‑driven systems for critical internal applications
Identify and resolve issues related to database performance and integrity
Design, document, and implement efficient and scalable database structures
Drive and lead software design, development standards, code reviews, and production releases
Collaborate closely with other Software Engineers across the organization
Continuously evaluate emerging technologies to identify opportunities, trends, and best practices that can strengthen CoStar’s technology platform and development practices
Take an active role in mentoring other developers
Qualifications
Bachelor’s Degree from an accredited university or college
5+ years of production development experience with .NET Core and the ability to integrate front‑end components into a scalable, secure, and maintainable backend architecture
3+ years of database design, T‑SQL programming, and performance tuning experience
Production development experience using modern front‑end frameworks (React, Vue, Angular)
Experience architecting, designing, and building event‑driven applications in an agile environment
Excellent software development and engineering skills on large‑scale, mission‑critical applications
Proficiency in unit and performance testing
A track record of commitment to previous employers
Preferred Qualifications
Experience with Document Data Systems (Dynamo, OpenSearch) is a plus
Comfortable working across the stack with Node.js on the server‑side
Experience with AWS S3, Lambda, SQS, Kafka, Redis is a plus
Experience with Docker and container orchestration is a plus
Experience working on a SOX compliant team is a plus
Benefits
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, Peloton, 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.
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing.
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