Senior Software Engineer (C#/SQL)- Research Development at Costar in Richmond, VA | Kablio

Role

Description

.net development

microservices

ci/cd

secure coding

sql optimization

code review

Lead technical discussions and make critical architectural decisions aligned with business goals.
Develop proof-of-concepts (POCs) to evaluate new tools and frameworks.
Design, develop, and maintain robust and scalable applications using the Microsoft .NET technology stack (.NET Core, ASP.NET Core, C#, MSSQL).
Use Git, TFS, Azure DevOps, and CI/CD pipelines for version control and deployment.
Implement solutions using modern architecture paradigms including microservices, domain-driven design (DDD), and event-driven systems.
Apply secure coding practices, including integration of OAuth, OpenID Connect, and other authentication/authorization frameworks.
Implement and optimize SQL queries, stored procedures, and database schemas for performance.
Guide teams in adopting best practices in .NET Core, C# and SQL.
Collaborate with cross-functional teams, participate in code reviews, and mentor junior developers.
Ensure adherence to SOLID principles, design patterns, and clean coding standards.
Participate in Agile/Scrum ceremonies and contribute to incremental delivery and continuous improvement.
Analyze business requirements and translate them into technical designs and development-ready specifications.

Requirements

c#

.net

docker

kubernetes

aws

azure devops

We are seeking an accomplished Senior Full-Stack Software Engineer who excels at designing and architecting modern web applications. This engineer would 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.

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.

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.

Strong analytical and problem-solving skills with attention to detail and excellent communication skills.
Exposure to serverless computing and event-driven architectures.
Familiarity with microservices architecture and containerization using tools like Docker and Kubernetes.
A track record of commitment to previous employers.
5+ years of professional experience in software development using the Microsoft Stack, including C#, .NET Framework, .NET Core.
Familiarity with message brokers such as RabbitMQ, SQS, Kafka, or Azure Service Bus.
Experience with AWS or similar cloud platforms (Azure, GCP).
Comfortable working across the stack with Node.js on the server-side.
Experience with Identity & Access Management, like OAuth, JWT.
Knowledge of JSON, XML, and API development standards.
UX/UI experience with modern frameworks like React is a plus.
Bachelor’s Degree required from an accredited, not for profit university or college.
Proficiency with Azure DevOps, Git, or other version control and build systems.
Experience with ASP.NET Web API, and RESTful service design.
Experience in unit, performance and automation testing.
Strong experience with MS SQL Server, including relational database design and performance tuning.
Hands-on experience with Entity Framework for efficient data modeling and data access.
Experience with NoSQL databases and API Gateway technologies.
Strong understanding of CI/CD principles, infrastructure as code, and automated deployment pipelines.

Benefits

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.

This position is located in our Richmond, VA office and offers a schedule of Monday-Thursday in office and Friday work from home.

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

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

no visa sponsorship will be provided.

Security clearance

pre‑employment substance abuse testing (drug‑free workplace).

Company

Overview

1987

Year Founded

The company was established, marking its entry into the real estate information and analytics industry.

Specializes in providing data, research, and insights for commercial real estate professionals.
Operates the largest online commercial real estate marketplace, offering listings and analytics tools.
Known for its innovative approach to tracking property values, trends, and market dynamics.
Focused on transforming real estate with advanced data and technology solutions to drive smarter decisions.
Regularly produces detailed market reports and insights for professionals across sectors such as office, retail, and multifamily housing.
Boasts a strong presence with offices across North America, Europe, and Asia Pacific.
Acquired several key companies, including LoopNet, Apartments.com, and Ten-X, strengthening its market position.
Known for comprehensive property databases that cover millions of commercial and residential listings globally.
Has a reputation for high-quality research that serves investors, brokers, property managers, and other industry stakeholders.

Culture + Values

40-hour week

Efficient Work Schedule

Aim for a balanced and productive work schedule, emphasizing efficiency and focus.

We are always moving forward – as entrepreneurs and innovators
Constant collaboration, working toward a common goal
Chance to be seen and appreciated, to make your mark
Embraces balance, with a wider CoStar Group culture and camaraderie
Work/life balance with the aim of a 40‑hour week and no weekend working
Monthly recognition and rewards
Training programs including a leadership track
Mentorship & Education: support, upskilling, and collaborative development
Eco‑Friendly Workplaces: promoting energy‑friendly offices and commuting
Social Events and Community Support: philanthropy brought to life
Employee Resource Groups hosting networking, advocacy, volunteering and speaker events

Environment + Sustainability

130,000 MT CO2e

Carbon Emissions Avoided

Provided 30 million virtual property tours, avoiding approximately 130,000 metric tons of CO2e emissions.

75% Reduction

Data Center Efficiency

Reduced physical data center sites by over 75%, significantly improving energy and water efficiency across operations.

50% Renewables

Clean Energy Use

50% of electricity consumed at data centers comes from renewable sources as of 2023.

B− Rating

CDP Evaluation

Achieved a B− rating from CDP, reflecting substantial progress in environmental transparency and sustainability management.

Signed SBTi commitment in May 2023 to set science-based GHG targets toward net-zero by 2050.
Baseline emissions for Scope 1, 2, and relevant Scope 3 were measured and reported in the 2023 ESG Report.
Fleet includes 400+ electric and hybrid research vehicles, reducing fuel consumption by ~160,000 gallons per year.
Recycled over 5 tons of computer equipment in the prior year.
Achieved Scope 1 & 2 reduction targets of 54.6% by 2033 and 90% by 2050; Scope 3 capital goods reduction target of 61.1% per USD by 2033 and 97% by 2050; engagement with 75.3% suppliers by spend through Science-Based Targets by 2029.
Improved ESG ratings with MSCI, Sustainalytics, ISS, and JUST Capital, and completed the first TCFD reporting.

Inclusion & Diversity

Women 45%

Workforce Representation

Women make up 45% of the workforce as of 2023.

Minorities 30%

Leadership Diversity

Underrepresented minorities hold 30% of leadership positions as of 2023.

15% Target

Diversity Hiring Goal

A hiring initiative aims to increase representation by 15% over five years.

99% Retention

Employee Satisfaction

The company maintains a monthly employee retention rate of approximately 99%.

Employee Resource Group membership at ~20% of employees
Over 50% growth in ERG participation since launch (2022)
Diversified supplier network as part of DEI strategy

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Role

Description

.net development

microservices

ci/cd

secure coding

sql optimization

code review

Lead technical discussions and make critical architectural decisions aligned with business goals.
Develop proof-of-concepts (POCs) to evaluate new tools and frameworks.
Design, develop, and maintain robust and scalable applications using the Microsoft .NET technology stack (.NET Core, ASP.NET Core, C#, MSSQL).
Use Git, TFS, Azure DevOps, and CI/CD pipelines for version control and deployment.
Implement solutions using modern architecture paradigms including microservices, domain-driven design (DDD), and event-driven systems.
Apply secure coding practices, including integration of OAuth, OpenID Connect, and other authentication/authorization frameworks.
Implement and optimize SQL queries, stored procedures, and database schemas for performance.
Guide teams in adopting best practices in .NET Core, C# and SQL.
Collaborate with cross-functional teams, participate in code reviews, and mentor junior developers.
Ensure adherence to SOLID principles, design patterns, and clean coding standards.
Participate in Agile/Scrum ceremonies and contribute to incremental delivery and continuous improvement.
Analyze business requirements and translate them into technical designs and development-ready specifications.

Requirements

c#

.net

docker

kubernetes

aws

azure devops

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.

Strong analytical and problem-solving skills with attention to detail and excellent communication skills.
Exposure to serverless computing and event-driven architectures.
Familiarity with microservices architecture and containerization using tools like Docker and Kubernetes.
A track record of commitment to previous employers.
5+ years of professional experience in software development using the Microsoft Stack, including C#, .NET Framework, .NET Core.
Familiarity with message brokers such as RabbitMQ, SQS, Kafka, or Azure Service Bus.
Experience with AWS or similar cloud platforms (Azure, GCP).
Comfortable working across the stack with Node.js on the server-side.
Experience with Identity & Access Management, like OAuth, JWT.
Knowledge of JSON, XML, and API development standards.
UX/UI experience with modern frameworks like React is a plus.
Bachelor’s Degree required from an accredited, not for profit university or college.
Proficiency with Azure DevOps, Git, or other version control and build systems.
Experience with ASP.NET Web API, and RESTful service design.
Experience in unit, performance and automation testing.
Strong experience with MS SQL Server, including relational database design and performance tuning.
Hands-on experience with Entity Framework for efficient data modeling and data access.
Experience with NoSQL databases and API Gateway technologies.
Strong understanding of CI/CD principles, infrastructure as code, and automated deployment pipelines.

Benefits

This position is located in our Richmond, VA office and offers a schedule of Monday-Thursday in office and Friday work from home.

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

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

no visa sponsorship will be provided.

Security clearance

pre‑employment substance abuse testing (drug‑free workplace).

Company

Overview

1987

Year Founded

The company was established, marking its entry into the real estate information and analytics industry.

Specializes in providing data, research, and insights for commercial real estate professionals.
Operates the largest online commercial real estate marketplace, offering listings and analytics tools.
Known for its innovative approach to tracking property values, trends, and market dynamics.
Focused on transforming real estate with advanced data and technology solutions to drive smarter decisions.
Regularly produces detailed market reports and insights for professionals across sectors such as office, retail, and multifamily housing.
Boasts a strong presence with offices across North America, Europe, and Asia Pacific.
Acquired several key companies, including LoopNet, Apartments.com, and Ten-X, strengthening its market position.
Known for comprehensive property databases that cover millions of commercial and residential listings globally.
Has a reputation for high-quality research that serves investors, brokers, property managers, and other industry stakeholders.

Culture + Values

40-hour week

Efficient Work Schedule

Aim for a balanced and productive work schedule, emphasizing efficiency and focus.

We are always moving forward – as entrepreneurs and innovators
Constant collaboration, working toward a common goal
Chance to be seen and appreciated, to make your mark
Embraces balance, with a wider CoStar Group culture and camaraderie
Work/life balance with the aim of a 40‑hour week and no weekend working
Monthly recognition and rewards
Training programs including a leadership track
Mentorship & Education: support, upskilling, and collaborative development
Eco‑Friendly Workplaces: promoting energy‑friendly offices and commuting
Social Events and Community Support: philanthropy brought to life
Employee Resource Groups hosting networking, advocacy, volunteering and speaker events

Environment + Sustainability

130,000 MT CO2e

Carbon Emissions Avoided

Provided 30 million virtual property tours, avoiding approximately 130,000 metric tons of CO2e emissions.

75% Reduction

Data Center Efficiency

Reduced physical data center sites by over 75%, significantly improving energy and water efficiency across operations.

50% Renewables

Clean Energy Use

50% of electricity consumed at data centers comes from renewable sources as of 2023.

B− Rating

CDP Evaluation

Achieved a B− rating from CDP, reflecting substantial progress in environmental transparency and sustainability management.

Signed SBTi commitment in May 2023 to set science-based GHG targets toward net-zero by 2050.
Baseline emissions for Scope 1, 2, and relevant Scope 3 were measured and reported in the 2023 ESG Report.
Fleet includes 400+ electric and hybrid research vehicles, reducing fuel consumption by ~160,000 gallons per year.
Recycled over 5 tons of computer equipment in the prior year.
Achieved Scope 1 & 2 reduction targets of 54.6% by 2033 and 90% by 2050; Scope 3 capital goods reduction target of 61.1% per USD by 2033 and 97% by 2050; engagement with 75.3% suppliers by spend through Science-Based Targets by 2029.
Improved ESG ratings with MSCI, Sustainalytics, ISS, and JUST Capital, and completed the first TCFD reporting.