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Principal Software Engineer

Remote / Online - Candidates ideally in
Orange, Orange County, California, 92613, USA
Listing for: costar
Remote/Work from Home position
Listed on 2025-12-19
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer, Cloud Engineer - Software
Job Description & How to Apply Below
Position: Apartments.com - Principal Software Engineer

Overview

- Principal Software Engineer

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.

is the nation’s #1 rental marketplace for owners, property managers and consumers.  is the network that millions of renters every year rely on to find their new place, is continuing to grow our industry-leading sales force. We provide apartment Property Managers and Owners with a platform to market their property listings and the industry’s most comprehensive virtual tools to attract the most and highest-quality renters.

The  Network includes , , , , and eight other leading rental sites. Our suite of services includes digital advertising, social and reputation management, and market analytic solutions which delivers innovative tools for our customers.

Learn more about

Responsibilities

As a Principal Software Engineer, you will proactively lead the collaboration and engagement with product and engineering teams to deliver cutting edge and innovative solutions based on architectural best practices. You will work with other architects, product management, and engineering to build out the CoStar enterprise architecture.

On any given day you will be creating and documenting architectures for new features, products, and processes; socializing and evangelizing those architectures and designs, best practices; understanding business goals from leadership and Product Management and adding architectural guidance to distill requirements, leverage existing systems across domains, and generally help bring those ideas to life; discovering, researching, and presenting new technologies that will enhance and improve new and existing systems;

helping balance the needs of Engineering, Product, and Management to deliver cutting-edge and innovative products.

This position is in office Monday through Thursday and work from home on Friday.

Qualifications
  • Generally requires 15+ years of experience.
  • 5 years+ of experience as a Software Architect.
  • Bachelor’s degree in computer science or relevant field from an accredited, not for profit university or college.
  • A track record of commitment to prior employers.
  • A broad knowledge base across engineering technologies, disciplines, and platforms.
  • Exceptional communication skills and the ability to evangelize solutions to all levels of the organization; this includes written and verbal communications as well as visualizations.
  • Extensive experience in software engineering with expert-level proficiency in at least one of these programming languages: C#, Java, Python, JavaScript/Type Script. Exposure to languages and platforms across the full web application stack is a big plus.
  • Strong understanding of the cloud computing model, information risk and security guidelines and architecture standards and best practices, as well as excellent analytical and problem-solving skills
  • Hands on experience with cloud tools using Amazon Web Services (AWS) services or GCP or Azure, including Lambda, Dynamo

    DB, Cloud Watch, Cloud Formation, SNS/SQS, S3, etc.
  • Experience modeling and implementing large-scale relational and No

    SQL database systems.
  • Experience designing/implementing event-oriented architectures and real-time data streaming solutions.
Preferr…
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