Arlington, Virginia, United States · Hybrid
$108k–$154k/yr
Software Engineer (C#/.NET) <br> Job Description <br> Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included …
Skills: C#, .NET Framework, SQL Server, AWS, Web API
Arlington, Virginia, United States · Hybrid
$176k–$220k/yr
Job Description: At Remitly, we believe everyone deserves the freedom to access, move, and manage their money wherever life takes them. Since 2011, we've tirelessly delivered on our promise to customers sending money glo…
Skills: Product Strategy, Roadmap Development, Consumer Fintech, P2P Payments, AI-First Product Management
Arlington, Virginia, United States · On-site
Job DetailsLevel: ExperiencedJob Location: SBG - Arlington, VA - Arlington , VA 22201Position Type: Full TimeEducation Level: 4 Year DegreeSalary Range: $80,000.00 - $115,000.00Travel Percentage: Up to 25%Job Shift: DayJ…
Skills: macOS Support, JAMF, Shell Scripting, Bash Scripting, Python Scripting
Arlington, Virginia, United States · On-site
$179k–$241k/yr
Product Director, Searcher Experience, LoopNet <br> Job Description <br> Product Director, Searcher Experience, LoopNet Job Description CoStar Group is a leading global provider of commercial and residential real estate …
Skills: Product Strategy, Roadmap Development, People Management, Search and Discovery, Marketplace Product Management
Arlington, Virginia, United States · On-site
$155k–$200k/yr
You are responsible for developing and managing a high performing poly skilled team of software engineers to develop software using DEVSECOPS and Agile/ Lean principles. You will work with peers and team members to creat…
Skills: DevSecOps, Agile, Lean, AWS, Serverless
Arlington, Virginia, United States · Hybrid
$143k–$187k/yr
Senior Software Engineer (C#/.NET) <br> Job Description <br> Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. In…
Skills: C#, .NET Framework, SQL Server, AWS, Web API
Arlington, Virginia, United States · On-site
BCMC is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and …
Skills: IT Helpdesk Support, MacOS, iOS, Asset Management, Systems Administration
Arlington, Virginia, United States · On-site
$119k–$209k/yr
This role sits at the intersection of compliance, security engineering, and AI-driven automation. You will serve as a subject matter expert for compliance programs supporting Amazon Foundational Security Services (AFSS),…
Skills: Compliance Management, Security Engineering, AI Automation, FedRAMP, SOX
Arlington, Virginia, United States · On-site
$185k–$225k/yr
Umbra is an American space technology company delivering advanced systems, from sensors to spacecraft, that empower customers worldwide with unmatched access to critical information from space. Our mission is simple and …
Skills: Systems Engineering, Personnel Management, Space Mission Design, Technical Leadership, Project Management
Arlington, Virginia, United States · On-site
$135k–$155k/yr
Your Career The Principal IT Engineer - Corporate IT is accountable for the strategy, reliability, security, compliance readiness, and operational performance of Federated Wireless' corporate IT environment. This role ow…
Skills: Corporate IT Infrastructure, Network Management, Endpoint Management, Identity And Access Management, SaaS Administration
Arlington, Virginia, United States · On-site
Company Description Air is the leader in Enterprise Readiness. Our mission is to establish readiness as a real-time condition that is continuously achieved. Today, a dangerous Readiness Gap exists between what the front …
Skills: Business Intelligence, SQL, Data Warehousing, KPI Modeling, Database Architecture
Arlington, Virginia, United States · Remote OK
$64k–$124k/yr
The Customer Applications Developer will independently manage a range of technical tasks, including implementing enhancements, performing upgrades, and delivering maintenance fixes to meet project requirements. The ideal…
Skills: Python, React, AI, Terraform, DevOps
Arlington, Virginia, United States · Remote OK
$64k–$124k/yr
At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the li…
Skills: Python, React, AI, Terraform, DevOps
Arlington, Virginia, United States · Hybrid
$134k–$184k/yr
About the Team: STR’s Analytics & C2 Division develops novel technologies to solve challenging national security problems through advanced analytics. Our team consists of passionate and motivated individuals with degrees…
Skills: C++, Java, Data Structures, Algorithms, Concurrency
Arlington, Virginia, United States · On-site
$90k–$120k/yr
At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We be…
Skills: Web Design, Digital Interface Design, Data Analytics, Human-Computer Interaction, Accessibility Standards
Arlington, Virginia, United States · On-site
$90k–$120k/yr
At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We be…
Skills: Database Administration, Data Analytics, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
Arlington, Virginia, United States · On-site
$90k–$120k/yr
At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We be…
Skills: Data Analytics, Data Mining, Data Modeling, Natural Language Processing, Machine Learning
Arlington, Virginia, United States · On-site
$70k–$110k/yr
At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We be…
Skills: Web Design, Digital Interface Design, Data Analytics, Human-Computer Interaction, Accessibility Standards
Arlington, Virginia, United States · On-site
$70k–$110k/yr
At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We be…
Skills: Database Management, Data Analytics, Security Implementation, Microsoft Word, Microsoft Excel
Arlington, Virginia, United States · On-site
$70k–$110k/yr
At MBC, we believe we can. We believe in working hard to meet our clients’ outcomes. We believe in laughter to help us recharge, draw people together, foster a positive work environment, and boost creativity. We be…
Skills: Data Analytics, Data Mining, Data Modeling, Natural Language Processing, Machine Learning
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Develop large-scale, distributed API-driven systems and integrate AI-powered solutions to enhance platform intelligence and customer experience. Lead software design and implement telemetry-driven monitoring to improve system reliability and operational efficiency.
Requires a Bachelor's degree and 3+ years of deep .NET/C# development experience with cloud platforms like AWS or Azure. Candidates should be familiar with LLMs, data modeling, and architecting service-oriented systems in an agile environment.
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Job Description
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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, 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.
As a Software Engineer on the Platform Development team, you will play a key role in expanding the data platform that supports all of CoStar Group’s largest brands including CoStar Suite, LoopNet, Homes.com and Apartments.com. You will deeply understand what drives the business for which you are building software. We firmly believe that what separates a good developer from a great one is a deep understanding of the business that they are supporting.
CoStar is investing heavily in artificial intelligence to accelerate software delivery, improve platform observability, automate research and business workflows, enhance product experiences through intelligent agents and skills, and improve data quality across enterprise systems. Successful candidates will demonstrate a willingness to learn, adopt, and apply AI technologies responsibly to solve complex business and engineering challenges.
This position is located in Arlington, VA and is in office Monday through Thursday with work from home on Friday.
Responsibilities
Basic Qualifications
Preferred Qualifications and Skills
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, and tuition reimbursement.
Our benefits package includes (but is not limited to):
The final salary or hourly rate offered for this role will fall within the range set forth below based on a variety of factors, including but not limited to, geographic location, skills, and competencies.
Base Compensation: $108,000 - $154,000 Annually
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.
#LI-AR
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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 global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; Homes.com, the fastest-growing residential real estate marketplace; and Domain, one of Australia’s leading property marketplaces. CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking; Ten-X, an online platform for commercial real estate auctions and negotiated bids; and OnTheMarket, a leading residential property portal in the United Kingdom. CoStar Group’s websites attracted over 143 million average monthly unique visitors in the third quarter of 2025, serving clients around the world. Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence. From time to time, we plan to utilize our corporate website as a channel of distribution for material company information. For more information, visit CoStarGroup.com.
Offices: 1201 Wilson Blvd, Arlington, Virginia 22209, US · 181 Bay St, Suite 3420, Toronto, Ontario M5J, CA · 81, Rue Taitbout, Paris, Île-de-France 75009, FR · Calle de Serrano, 47, 13th Floor, Madrid, 28001, ES · 32 London Bridge, 26th Floor, The Shard, London, England SE1 9SG, GB
Based on 984 listings with disclosed salaries, most technology jobs in Arlington, VA pay between $81k–$208k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 1,395 open technology positions in Arlington, VA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Amazon, CoStar Group, Booz Allen Hamilton, TekSynap, Accenture Federal Services, among others. Browse the listings above to see every active employer.
Yes — 457 of the 1395 open technology positions offer remote or hybrid work (149 remote, 308 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
