Senior Backend Engineer (.NET & AI/ML)

Senior Backend Engineer - .NET and AI/ML (Backend Systems)

Distributed Architecture

gRPC Microservices

Cloud Services

AI/ML & LLM Engineering

We are hiring a Senior Backend Engineer with strong .NET and AI/ML expertise to design and build scalable, high‑performance backend systems and AI‑powered features for NewHomeSource.com and Livabl, two of North America's largest new‑home and pre‑construction marketplaces.

This is a dual‑focus role: you will spend meaningful time on both core backend engineering (.NET, gRPC microservices, SQL Server, MongoDB, Elasticsearch, AWS, Azure) and AI/ML engineering (LLMs, RAG, vector search, MCP, ranking, personalization). You'll work across our API Gateway, gRPC microservices, Search Engine, MVC web applications, and MCP (Model Context Protocol) server to ship features that directly impact millions of homebuyers. Working hours align with the Eastern Time (EDT/EST) zone.

What You’ll Do Backend...