Senior Software Engineer

Overview

The Ads Data Platform Team, part of Microsoft AI (Artificial Intelligence), is hiring aSoftwareEngineerII-Big Data Systems.

This role is available inRedmond, WA

Our team powers the backbone of Microsoft's global ads marketplace-gathering, storing, and enriching over half a trillion ad-serving events every day. We build data platforms that fuel business analytics, machine learning models, and real-time reporting atmassivescale. Ifyou'repassionate about solving complex problems and driving innovation, this is the place for you.

As part of our team,you'll:

• Design andoperatehigh-scale, high-performance systemsthat process billions of events through near-real-time and offline pipelines.
• Builddata applications that directlyimpactMicrosoft Ads' double-digit annual growth.
• Workoncutting-edgetechnologies indistributed systems, machine learning, and big data.

Why join us?

• Online advertising is one of the fastest-growing businesses on the Internet, with$70B of a $600B market already online-andwe'rejust getting started.
• You'lltackle technical challenges that demandcomputational intelligence, scalable algorithms, and interdisciplinaryexpertiseacross data mining, optimization, and economics.
• Be part of aresults-driven, inclusive culturewhere your ideas matter and your workcreatemeasurable business impact.

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.

• Work withBingAdsstakeholders todeterminerequirements for new features to drive up Ads business. Create system design for feature requirements. Assuresystemmeets security and compliance requirements and expectations. Creates a clear and articulated plan for testing and assuring quality solutions.
• Implement the features with high efficiency, extensibility, diagnosability, reliability, and maintainability with few defects. Reviews code of product toassureit meets theteam'sand Microsoft's quality standards, is reliable andaccurate, and isappropriate forthe scale of the product feature.
• Maintain operations of live service as issues arise on a rotational, on-call basis.Identifiessolutions and mitigations to simple and complex issues andescalatesas necessary. Acts as a Designated Responsible Individual (DRI) working on call tomonitorsystem/product feature/service for degradation, downtime, or interruptions. Responds withinServiceLevel Agreement (SLA)timeframe.Escalateissues toappropriate owners.
• Build knowledge, sharenew ideas, and share pinpoints of engineering tool gaps to improve software developer tools to support other programs, tools, and applications to create, debug, andmaintaincode for product features. Contribute to the development of automation within production and deployment of a product feature.
• Profile and analyze distributed system performance and capacity bottlenecks. Propose and implement solutions to improve system latency and capacity to meetBingAdsonline serving requirements.