Overview Microsoft Monetization is building the next generation of AI-powered advertising and commerce experiences across Search, Shopping, Copilot, and emerging agentic surfaces. As conversational agents increasingly be…
Skills: Machine Learning, Artificial Intelligence, Technical Leadership, Large Language Models, Recommendation Systems
Senior Software Development Engineer - XBOX Product Growth
San Francisco, California, United States · Remote Solely
$120k–$261k/yr
Mid level$1M raised
Overview At XBOX, we have an ambitious goal to reach 1B daily active users by helping more people discover games, connect with others, and play wherever they are. Over the past 25 years, XBOX has built a passionate globa…
Principal Software Development Engineer - XBOX Product Growth
San Francisco, California, United States · Remote OK
$143k–$304k/yr
Senior$1M raised
Overview At XBOX, we have an ambitious goal to reach 1B daily active users by helping more people discover games, connect with others, and play wherever they are. Over the past 25 years, XBOX has built a passionate globa…
Overview Join the Azure AI Platform air gapped engineering team as a Software Engineer delivering secure, scalable, and mission critical AI infrastructure for Microsoft’s most sensitive cloud environments. We build found…
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Nintendo of America About Nintendo of America: From the launch of the Nintendo Entertainment System™ more than 30 years ago, Nintendo’s mission has been to create smiles through unique entertainment experiences. Here at …
As an Advanced Manufacturing Engineer I at Honeywell Aerospace, you will play a critical role in the design, development, maintenance, and optimization of equipment used during the build and testing of Honeywell accelero…
Skills: Automation development, System maintenance, Electronics, Robotics, Hardware design
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Overview Microsoft Silicon, Cloud Hardware, and Infrastructure Engineering (SCHIE) is the team behind Microsoft’s expanding Cloud Infrastructure and responsible for powering Microsoft’s “Intelligent Cloud” mission. SCHIE…
Skills: Semiconductor IC development, IC manufacturing, ATE test program development, Silicon fabrication, Packaging engineering
Overview Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for …
Overview Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for …
Skills: Software Engineering, Cloud Security, DevOps, C, C++
Overview Microsoft Silicon, Cloud Hardware, and Infrastructure Engineering (SCHIE) is the team behind Microsoft’s expanding Cloud Infrastructure and responsible for powering Microsoft’s “Intelligent Cloud” mission. SCHIE…
Skills: Silicon Engineering, Analog Circuit Design, SerDes, PLL, Clock Distribution
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Overview Security represents one of the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer pla…
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Skills: Sensor characterization, MATLAB, Python, Inertial sensors, Allan variance
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Overview Microsoft Silicon, Cloud Hardware, and Infrastructure Engineering (SCHIE) is the team behind Microsoft’s expanding Cloud Infrastructure and responsible for powering Microsoft’s “Intelligent Cloud” mission. SCHIE…
Skills: RTL Design, Verilog, System Verilog, Synthesis, CDC
Senior Software Engineer (Windows ML MLIR Platform)
Redmond, Washington, United States · Hybrid
$120k–$261k/yr
Senior$1M raised
Overview Help define how AI runs on Windows at global scale. The Windows AI Platform & Tools Team is building the foundational software that turns rapidly advancing models and silicon into fast, efficient, and trusted ex…
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$166k–$331k/yr
Full-time
bachelor degree, postgraduate degree
Posted 7d ago
~40 hrs/week
Responsibilities
The Principal Applied Scientist will lead the technical strategy and execution for AI-powered relevance, shopping, and agentic commerce initiatives across Microsoft platforms. They will drive end-to-end machine learning innovation, from research and model architecture to large-scale production deployment.
Requirements
Candidates must possess a Bachelor's, Master's, or Doctorate degree in a quantitative field with 5 to 12+ years of relevant experience. Proven expertise in building and shipping large-scale machine learning systems and serving as a technical lead is required.
Full job description
Overview
Microsoft Monetization is building the next generation of AI-powered advertising and commerce experiences across Search, Shopping, Copilot, and emerging agentic surfaces. As conversational agents increasingly become the interface between users and businesses, we are reimagining how products, services, and ads are discovered, selected, personalized, and delivered.
We are seeking a Principal Applied Scientist and Technical Lead to drive the science vision, technical strategy, and execution for relevance, intent understanding, personalization, recommendation, and agent-driven commerce experiences.
This individual will serve as the technical leader across multiple science areas, influencing architecture, research investments, model roadmaps, and execution strategies while remaining deeply hands-on in machine learning innovation.
The successful candidate will combine deep expertise in machine learning and AI with a proven record of technical leadership, driving end-to-end innovation from research and experimentation through large-scale production deployment.
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.
Responsibilities
Serve as the technical lead for AI-powered relevance, shopping, recommendation, and agentic commerce initiatives across Copilot, Shopping, and Ads experiences.
Drive innovation in machine learning technologies including LLMs, SLMs, multimodal AI, retrieval, ranking, personalization, and recommendation systems.
Define and execute the science roadmap for user intent understanding, product understanding, content relevance, and advertiser matching.
Lead end-to-end ML development, including model architecture, training data strategy, evaluation, experimentation, calibration, and production deployment.
Partner with engineering and product teams to deliver scalable, reliable, and cost-efficient AI systems.
Shape the technical vision for future agent experiences, conversational shopping, and AI-assisted commerce scenarios.
Drive measurable improvements in customer satisfaction, engagement, relevance quality, and business outcomes.
Mentor scientists and engineers while raising the technical bar across machine learning, experimentation, and scientific rigor.
Qualifications
Required Qualifications:
Bachelor's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 8+ years related experience (e.g., statistics, predictive analytics, research)
OR Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 6+ years related experience (e.g., statistics, predictive analytics, research)
OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 5+ years related experience (e.g., statistics, predictive analytics, research)
OR equivalent experience.
Preferred Qualifications:
Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 12+ years related experience (e.g., statistics, predictive analytics, research)
OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 8+ years related experience (e.g., statistics, predictive analytics, research)
OR equivalent experience.
Extensive experience building and shipping large-scale machine learning systems in search, recommendation, ranking, advertising, commerce, conversational AI, or personalization.
Deep expertise in modern machine learning, including deep learning, transformers, representation learning, retrieval systems, recommendation systems, and foundation models.
Demonstrated experience serving as a technical lead for large-scale cross-organizational initiatives.
Proven ability to translate research innovations into production systems with measurable business impact.
Experience with LLMs, SLMs, multimodal AI, and agentic systems.
Experience in advertising, e-commerce, shopping, recommendation, or marketplace ecosystems.
Experience developing AI-powered assistants, commerce experiences, or personalization platforms.
Experience optimizing distributed training and inference systems on large GPU clusters.
Experience mentoring principal-level engineers, scientists, and technical leaders.
#MicrosoftAI #BingAds
Applied Sciences IC6 - The typical base pay range for this role across the U.S. is USD $165,600 - $296,400 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 $220,800 - $331,200 per year.
This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.
Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.
Every company has a mission. What's ours? To empower every person and every organization to achieve more. We believe technology can and should be a force for good and that meaningful innovation contributes to a brighter world in the future and today. Our culture doesn’t just encourage curiosity; it embraces it. Each day we make progress together by showing up as our authentic selves. We show up with a learn-it-all mentality. We show up cheering on others, knowing their success doesn't diminish our own. We show up every day open to learning our own biases, changing our behavior, and inviting in differences. Because impact matters.
Microsoft operates in 190 countries and is made up of approximately 228,000 passionate employees worldwide.
Offices: 1 Microsoft Way, Redmond, Washington 98052, US · 1 Denison Street, North Sydney, NSW 2060, AU · 1950 Meadowvale Blvd, Mississauga, Ontario L5N 8L9, CA · 39, Quai du Président Roosevelt, Issy-les-Moulineaux, Île-de-France 92130, FR · Walter-Gropius-Straße 5, München, 80807, DE
Based on 1445 listings with disclosed salaries, most engineering jobs in Redmond, WA pay between $102k–$261k per year. Individual offers vary with seniority, company size, and specialization.
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