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Job Details
Posted date: Sep 08, 2025
There have been 1161 jobs posted with the title of Principal Software Engineer all time at Microsoft.There have been 1161 Principal Software Engineer jobs posted in the last month.
Category: Software Engineering
Location: Redmond, WA
Estimated salary: $222,050
Range: $139,900 - $304,200
Employment type: Full-Time
Travel amount: 25.0%
Work location type: Up to 50% work from home
Role: Individual Contributor
Description
Online Advertising is one of the fastest growing businesses on the Internet today, with about $70 billion of a $600 billion advertising market already online. Search engines, web publishers, major ad networks, and ad exchanges are now serving billions of ad impressions per day and generating terabytes of user events data every day. The rapid growth of online advertising has created enormous opportunities as well as technical challenges that demand computational intelligence and scalable algorithms. Computational Advertising has emerged as a new interdisciplinary field that involves information retrieval, data mining, machine learning, statistical modeling, optimization, linear algebra, and micro-economics, to solve challenging problems that arise in online advertising.The Microsoft Ads Marketplace and Serving is a dynamic group responsible for developing a comprehensive platform that empowers users to manage the marketplace, monitor business KPIs, and optimize system performance. This platform serves as a one-stop-shop for a wide range of analytics, diagnostics, and debugging scenarios, offering valuable insights into Microsoft Ads demand, supply, user behavior, experimentation, and the Delivery Engine backend. In this self-motivated and results-driven environment, your potential will be fully realized. As a key member of our team, you will contribute to building a highly scalable and performant platform that impacts numerous components of our technology stack.
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.
Design, implement, and ship infrastructure related features related to enable ads metrics alerting, diagnostics, debugging, root cause analysis and monitoringOptimize data processing pipelines and evolve architectures to maximize performance and minimize cost.Improve services and data analysis infrastructure to streamline CTS and integrate new business and system metrics.Deep dive into data to find key insights that drive technical design and feature roadmaps.Collaborate with partner teams in ads and Bing to implement diverse ads scenarios and capitalize on their innovations.Provide operational support for the product, addressing bugs and managing live site issues proactively.
Qualifications
Required/minimum qualificationsBachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C#, Java, JavaScript, Python, C or C++OR equivalent experience.3+ years experience in distributed system engineering and multi-threading programming.Other Requirements:
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:
Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter. Additional or preferred qualificationsMaster's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C#, Java, JavaScript, Python, C or C++OR Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR equivalent experience.A team player with a lot of curiosity.Working knowledge of any other cloud service
Experience in shipping production quality code
2+ years of hands-on experience in online advertising systems, information retrieval systems, web search systems, big data processing pipelines, database applications, large scale internet applications, and/or distributed systems.
Experience in Azure.Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.
Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay
Microsoft will accept applications for the role until September 23, 2025.
Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request via the Accommodation request form.
Benefits/perks listed below may vary depending on the nature of your employment with Microsoft and the country where you work.
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