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Senior Software Engineer in Test

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.

The Analytics team is responsible for the development of CoStar's customer-facing Real Estate Analytics and Residential products. We think big, creating innovative data-intensive applications that take the vast amount of data collected by our CoStar Research teams to create a fast, reliable and intuitive analytics platform for our customers. We are a collaborative group with a mix of big data, API/platform, Machine Learning, and front-end skills, and we are growing rapidly to help invent the future of both Commercial and Residential Real Estate.

We are searching for an exceptional Senior Software Engineer in Test, who can develop test automation solutions within our agile product teams. This role is critical to the quality and success of our product and includes the design, development, and execution of automated tests for products we’re developing, as well as continued improvement of our testing process and architecture.

This position is located in La Jolla, CA and offers a schedule of 3 days onsite, 2 days remote.

RESPONSIBILITIES

• Design, implement, and maintain automated tests for data pipelines, including integration and end-to-end testing.

• Ensure comprehensive test coverage of data flows and transformations.

• Validate data quality and accuracy at various stages in the pipeline (raw, transformed, product tables)

• Develop test strategies and plans for validating integrations between backend systems and the UI

• Build test automation for CI/CD release process.

• Work closely with stakeholders to understand requirements, ensuring that test plans align with business objectives and technical goals.

• Create and maintain test documentation and reports to communicate the results and health of the data systems.

BASIC QUALIFICATIONS

• Bachelors degree in Information Systems, Computer Science, or related field

• A track record of commitment to prior employers

• 5+ years of experience in software development and/or test automation with a focus on testing complex data systems

• Strong proficiency in backend programming languages like Python, C# or Java used for test automation.

• Hands-on experience with test automation frameworks (e.g., Selenium, PyTest)

• Solid understanding of API testing, including tools like Postman or REST Assured

• Familiarity with SQL, ETL/ELT processes, data transformation, and pipeline architecture

• Knowledge of data quality frameworks and validation techniques

• Experience with testing in cloud environments.

• Ability to work collaboratively in a cross-functional team environment.

• Strong problem-solving and debugging skills.

• Excellent communication skills to articulate technical concepts clearly to non-technical stakeholders.

PREFERED QUALIFICATIONS

• Strong proficiency in Python

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.

This position offers a base salary range of $105,000 - $193,000 based on relevant skills and experience and includes a generous benefits plan.

#LI-CT5

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. 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 37 years, giving us the perspective to create truly unique and valuable products and services. We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry and for our customers. 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 is committed to creating a diverse environment and is proud to be an equal opportunity workplace and affirmative action employer. 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 .