Lead Software Engineer- CoStar- Arlington, VA
Core
Lead the build of a greenfield, enterprise-scale web application infused with AI, shaping AI-first engineering workflows.
Role type
Lead Software Engineer (AI/ML integration)
Builds
Enterprise-scale web applications and AI-powered product experiences
Domain
Commercial Real Estate (CRE) / Cloud-native software
Deliverable
production ML models | product features
Required skills
Distributed systems architecture, React, Node.js, TypeScript, Cloud-native services (AWS/Azure/GCP), Microservices, AI tooling & automation, Mentorship, Agile/Scrum
Preferred skills
C#, .Net, OpenSearch, Kafka, SQL, NoSQL, Vibe coding, Building AI agents and workflows
Technologies
React, Node.js, Tailwind, Azure, AWS, GCP, Kafka, OpenSearch, SQL, NoSQL, C#, .Net
Responsibilities
Architect scalable distributed systems, Build high-performance applications, Optimize for performance and observability, Establish AI-first engineering practices, Mentor developers, Evaluate emerging technologies
Seniority
Senior, hands-on IC with leadership responsibilities
