# Lead Software Engineer- CoStar Suite- Arlington, VA at CoStar Group

- Company: CoStar Group
- Company website: https://www.costargroup.com
- Type: Startups
- Level: Senior
- Location: US-VA Arlington
- Work setup: On-site
- Posted: 2026-10-21
- Apply by: 2026-12-05
- Apply: https://costar.wd1.myworkdayjobs.com/en-US/CoStarCareers/job/US-VA-Arlington/Lead-Software-Engineer--CoStar-Suite--Arlington--VA_R40182?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/costar-group-lead-software-engineer-costar-suite-arlington-va/

## About the role

As CoStar’s next Lead Software Engineer, you will lead the build of a greenfield, enterprise-scale web application infused with AI , leveraging modern technologies and frontier models. Drive the development of AI-powered product experiences while shaping AI-first engineering workflows that redefine how software is built. This is a high-impact role to architect, innovate, and influence the future of intelligent applications at scale. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Architect scalable, resilient distributed systems — defining service boundaries, data contracts, and cross-team API standards for an enterprise-scale platform
- Build responsive, high-performance applications using React, Node.js, Tailwind, etc
- Work with cloud-native services (Azure/AWS/GCP), containers, and microservices
- Optimize for performance, observability, and developer productivity
- Leverage AI Tooling & Automation (CI/Cd, code generation, test generation)
- Influence and establish AI-first engineering practice (vibe coding, human-in-the-loop, debugging)


Source: 1752vc Careers, https://www.1752.vc/careers/jobs/costar-group-lead-software-engineer-costar-suite-arlington-va/