**Overview**

Build the platform that powers Microsoft's advertising business. The Monetize engineering team builds the sell-side platform (SSP) and curation tools that serve first-party ads across all Microsoft properties and for major third-party publishers worldwide. We're hiring a Senior Software Engineer to own backend services handling millions of API requests per day, drive a major Azure Kubernetes migration, and deliver full-stack features that our users depend on daily.

What you'll work on:

Designing and building backend services in C#/.NET on Azure (AKS, Functions, Cosmos DB, SQL)
Driving a large-scale infrastructure migration from VMs to Kubernetes
Full-stack feature delivery across GraphQL APIs and TypeScript frontends — UIs, APIs, and tools for business-critical workflows
Live-site engineering — owning production health, incident response, and observability
Building new applications from scratch as the platform expands into new areas