CoStar Group, Inc.
Senior Software Engineer
Job Description
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 and the NASDAQ 100, CoStar 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. With over 35 years of expertise we continually refine our approach, creating industry‑standard solutions that provide an invaluable edge to our customers. This role sits on our finance technology team in Richmond, VA and focuses on enabling the payment‑processing functionality of our business, building new data pipelines and system integrations to deliver real‑time, enriched data for millions of transactions with high performance and fault tolerance. The schedule is Monday‑Thursday in office, Friday remote. Responsibilities
Lead technical discussions and make critical architectural decisions aligned with business goals. Design, develop, and maintain robust and scalable applications using the Microsoft .NET technology stack, SQL and other data tools. Implement solutions using modern architecture paradigms including microservices and event‑driven systems. Ensure adherence to SOLID principles, design patterns, and clean coding standards. Collaborate with cross‑functional teams, participate in code reviews, and mentor junior developers. Analyze business requirements and translate them into technical designs and development‑ready specifications. Work across teams and departments to standardize data transfer and storage. Basic Qualifications
Bachelor’s Degree required from an accredited, not‑for‑profit university or college. A track record of commitment to prior employers. 7+ years of professional experience in software development using strongly typed languages for server‑side processing, such as C#, GoLang, Java, or Node with TypeScript. Must have strong experience with MS SQL Server, including relational database design and performance tuning. Able to demonstrate experience building highly scalable software systems in both volume processing and performance. Familiarity with microservices architecture and containerization using Docker and Kubernetes. Experience with AWS or similar cloud platforms (Azure, GCP). Strong understanding of CI/CD principles, infrastructure as code, and automated deployment pipelines and source control systems. Strong analytical and problem‑solving skills with attention to detail and excellent communication skills. Experience in unit, performance, and automated testing. Preferred Qualifications
Experience with NoSQL databases and API Gateway technologies. Familiarity with observability tools like Kibana, DataDog, and other monitoring frameworks. Hands‑on experience with Entity Framework for efficient data modeling and data access. Databricks, Python or other ETL processing experience. Experience with ElasticSearch or OpenSearch. Payments experience a plus. Experience with Identity & Access Management, like OAuth, JWT. Exposure to serverless computing and event‑driven architecture, including but not limited to RabbitMQ, SQS, Kafka, or Azure Service Bus. What’s in it for you?
Comprehensive healthcare coverage: Medical/ Vision/ Dental / Prescription Drug / Life, legal, and supplementary insurance. Virtual and in‑person mental health counseling services for individuals and families. 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 (location dependent), with yoga studio, Peloton, personal training, and 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. CoStar Group EEO Statement
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing. CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real‑estate information, analytics, and online marketplaces. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. CoStar is also committed to compliance with all fair employment practices regarding citizenship and immigration status. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access www.costargroup.com/careers as a result of your disability. You can request reasonable accommodations by calling 1‑855‑840‑1715 or by sending an email to recruiting@costargroup.com.
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Job Description
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 and the NASDAQ 100, CoStar 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. With over 35 years of expertise we continually refine our approach, creating industry‑standard solutions that provide an invaluable edge to our customers. This role sits on our finance technology team in Richmond, VA and focuses on enabling the payment‑processing functionality of our business, building new data pipelines and system integrations to deliver real‑time, enriched data for millions of transactions with high performance and fault tolerance. The schedule is Monday‑Thursday in office, Friday remote. Responsibilities
Lead technical discussions and make critical architectural decisions aligned with business goals. Design, develop, and maintain robust and scalable applications using the Microsoft .NET technology stack, SQL and other data tools. Implement solutions using modern architecture paradigms including microservices and event‑driven systems. Ensure adherence to SOLID principles, design patterns, and clean coding standards. Collaborate with cross‑functional teams, participate in code reviews, and mentor junior developers. Analyze business requirements and translate them into technical designs and development‑ready specifications. Work across teams and departments to standardize data transfer and storage. Basic Qualifications
Bachelor’s Degree required from an accredited, not‑for‑profit university or college. A track record of commitment to prior employers. 7+ years of professional experience in software development using strongly typed languages for server‑side processing, such as C#, GoLang, Java, or Node with TypeScript. Must have strong experience with MS SQL Server, including relational database design and performance tuning. Able to demonstrate experience building highly scalable software systems in both volume processing and performance. Familiarity with microservices architecture and containerization using Docker and Kubernetes. Experience with AWS or similar cloud platforms (Azure, GCP). Strong understanding of CI/CD principles, infrastructure as code, and automated deployment pipelines and source control systems. Strong analytical and problem‑solving skills with attention to detail and excellent communication skills. Experience in unit, performance, and automated testing. Preferred Qualifications
Experience with NoSQL databases and API Gateway technologies. Familiarity with observability tools like Kibana, DataDog, and other monitoring frameworks. Hands‑on experience with Entity Framework for efficient data modeling and data access. Databricks, Python or other ETL processing experience. Experience with ElasticSearch or OpenSearch. Payments experience a plus. Experience with Identity & Access Management, like OAuth, JWT. Exposure to serverless computing and event‑driven architecture, including but not limited to RabbitMQ, SQS, Kafka, or Azure Service Bus. What’s in it for you?
Comprehensive healthcare coverage: Medical/ Vision/ Dental / Prescription Drug / Life, legal, and supplementary insurance. Virtual and in‑person mental health counseling services for individuals and families. 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 (location dependent), with yoga studio, Peloton, personal training, and 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. CoStar Group EEO Statement
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing. CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real‑estate information, analytics, and online marketplaces. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. CoStar is also committed to compliance with all fair employment practices regarding citizenship and immigration status. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access www.costargroup.com/careers as a result of your disability. You can request reasonable accommodations by calling 1‑855‑840‑1715 or by sending an email to recruiting@costargroup.com.
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