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# Software Engineer II - Sales Development

- **Company:** Ten-X, LLC
- **Location:** Richmond, VA, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $108,000.0 - $140,000.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Artificial Intelligence, Amazon Web Services, Software Applications, C Sharp (Programming Language), Code Review, Continuous Integration, DevOps, Web Development, Amazon DynamoDB, Microsoft SQL Server, Query Optimization, Software Construction, Software Engineering, TypeScript, Web Applications, ReactJS, Large Language Models, Prompt Engineering, AI Coding Agents, Agentic-AI, Git, Data Management, Virtual Agents, Functional Programming, Restful APIs, Amazon Simple Queue Service (SQS), OpenSearch
- **Published:** October 14, 2026
- **Apply:** https://costar.wd1.myworkdayjobs.com/CoStarCareers/job/US-VA-Richmond---CoStar-Tower/Software-Engineer-II---Sales-Development_R40090

## About the Role

* Bachelor's Degree required from an accredited, not-for-profit, in-person college / university
 * 3+ years of professional software development experience using modern engineering practices, including Git and CI/CD.
 * Experience building web applications and RESTful APIs using C#/.NET and React/TypeScript.
 * Experience working with relational and/or search-based data platforms, such as SQL Server and OpenSearch, including data modeling and query optimization.
 * Exposure to AI-assisted development or AI-powered applications, including tools and technologies such as AI coding assistants, large language models (LLMs), or prompt engineering.
 * A track record of commitment to prior employers, * Strong communication skills with both business and technical partners
 * Familiarity with AWS services such as Lambda, DynamoDB, and SQS
 * Experience implementing AI agents, workflow automation platforms, or intelligent search solutions
 * Experience with CRM or sales-facing products

## Description

As a Software Engineer II on the Sales Development team, you will be responsible for building software that supports CoStar Group's sales teams, with a particular focus on high profile AI initiatives. Our team is building AI solutions that prep sales representatives to have well-informed and highly-tailored conversations with prospects and customers. You will help solve real business problems end to end, contributing across the full software development lifecycle from requirements and design through development and production.

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 Richmond, VA and offers a schedule of Monday to Thursday in office and the option to work from home on Friday.

Responsibilities

 * Build customer-facing web applications using React and TypeScript.
 * Contribute to design discussions and code reviews, and help keep our engineering standards high.
 * Build AI-powered capabilities, such as agents, skills, and tools, that streamline workflows for our sales teams.
 * Partner with Product, Sales, and Data teams to turn real business problems into shipped solutions.
 * Use AI-assisted development and testing to deliver quickly while owning the quality and reliability of what you ship.