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Principal Software Engineer

United States, Washington, Redmond💼 Full-time🗓 2026-08-17 → 2026-09-26

Core

Own critical components of the ads serving stack and lead the evolution of the core auction and pricing engine for the Bing Ads platform.

Role type

Principal Software Engineer (High-scale distributed systems & AI integration)

Builds

The Bing Ads platform, specifically the auction and pricing engine serving billions of requests daily.

Domain

Online advertising, search, high-scale low-latency distributed systems

Deliverable

production ML models | product features | infrastructure

Required skills

C, C++, C#, Java, JavaScript, Python, large-scale distributed systems design, architectural leadership, incident response, capacity planning, performance optimization, AI-enabled engineering practices, mentorship

Preferred skills

Experience with online advertising, search, or high-scale low-latency distributed systems

Technologies

C, C++, C#, Java, JavaScript, Python

Responsibilities

Own critical components of the ads serving stack end-to-end; Lead the evolution of the core auction and pricing engine; Drive ambiguous, high-impact technical initiatives from concept to delivery; Set architectural direction across teams; Mentor engineers and establish high engineering standards; Ensure platform health through operational excellence and performance optimization.

Seniority

Principal, strategy & mentorship

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