Ad SDK team builds advanced software development kits that enable seamless integration of advertising solutions into partner applications and platforms, both Microsoft and non-Microsoft. Our goal is to create fast, secure, and developer-friendly SDKs that help partners monetize their products at scale. We tackle tough technical challenges to ensure our solutions run smoothly across different environments, all while pushing the boundaries of ad-serving technology.

As a Senior Software Engineer, you'll be hands-on in designing and optimizing SDK components, especially for browsers using JavaScript and TypeScript. You should have a solid understanding of how browsers work under the hood, including rendering pipelines and performance tuning. You'll collaborate with teams around the world to build cross-platform solutions that reach millions of users. Expect to work on innovative features, improve the developer experience, and ensure everything meets high standards for security and privacy.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Starting January 26, 2026, Microsoft AI (MAI) employees who live within a 50- mile commute of a designated Microsoft office in the U.S. or 25-mile commute of a non-U.S., country-specific location are expected to work from the office at least four days per week. This expectation is subject to local law and may vary by jurisdiction.