Senior Applied Scientist (AI)

TL;DR

Senior Applied Scientist (AI): Design and implement state-of-the-art machine learning models and algorithms that power key systems within Microsoft Ads and Copilot to enhance ad relevance and optimize user/advertiser experiences. Focus on developing and deploying cutting-edge models like transformers, generative AI, and reinforcement learning, designing scalable algorithms, and driving experimentation for model performance.

Location: Redmond, United States. Starting January 26, 2026, employees who live within a 50-mile commute of a designated Microsoft office in the U.S. are expected to work from the office at least four days per week.

Salary: USD $119,800 – $234,700 per year (U.S. general)

Company

hirify.global (MAI) is part of Microsoft Ads Engineering, focused on shaping the future of advanced AI at web scale to empower every person and organization.

What you will do

• Develop and deploy cutting-edge machine learning models, including transformers, generative AI, and reinforcement learning, to optimize user interactions and ad relevance across Microsoft Ads and Copilot.
• Design scalable algorithms for online and offline systems, delivering innovative solutions for ads selection, ad generation and ad relevance.
• Drive experimentation through A/B testing and offline validation to evaluate model performance and refine user behavior predictions.
• Build robust data pipelines and frameworks for handling large-scale, high-dimensional datasets to support advanced AI applications.
• Stay at the forefront of AI research, incorporating the latest advancements to drive innovation and impact across Microsoft platforms.

Requirements

• Bachelor’s Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 4+ years related experience; OR Master’s Degree + 3+ years; OR Doctorate + 1+ year.
• Proven experience in programming and data analysis skills.
• Proven expertise in the areas of Generative AI, deep learning, Reinforcement learning, transformers or LLM.
• 5+ years of experience in developing and deploying large-scale machine learning models.

Culture & Benefits

• Join a team that fosters a growth mindset, innovation, and collaboration to achieve shared goals.
• Work within a culture valuing respect, integrity, and accountability to create inclusion.
• Eligibility for benefits and other compensation packages.
• Microsoft is an equal opportunity employer, providing assistance for religious accommodations and reasonable accommodations due to a disability.