Principal Applied Scientist

Actively Reviewing the Applications

Microsoft

India, Karnataka, Bengaluru Full-Time On-site INR 1–4 LPA

Posted 2 days ago • Apply by June 16, 2026

Job Description

Overview

What if your job description were simply “make tomorrow better?” Every day at Microsoft, we bring an insatiable curiosity to the workplace, challenging ourselves to reimagine what it is and what it can be. We build on what’s come before to create what’s next. We help shape the future and we empower billions of people around the globe. 

 

We are the computational advertising team in the AI & Research organization at Microsoft. We are looking for candidates with research and applied experience in machine learning related areas.  Search advertising is a $100 billion market worldwide. Microsoft's Bing search engine supports over 30% of desktop search in the US, with similarly significant presence in many other countries.

Responsibilities

We are a team of applied scientists working on machine learning components in the whole sponsored search stack.  Our team works on problems related to machine learning, deep learning, natural language processing, multi-arm bandit, optimization, information retrieval, and auction theory, among others. Our work entails building large-scale machine learning systems for ad matching, filtration, ranking, and multi objective optimization, and several other ML-driven business problems. You will design, implement, analyze, tune complex algorithms and ML systems and the supporting infrastructure for operating on large datasets.  You will collaborate with top machine learning scientists and engineers in delivering direct business impact. We're looking for sound understanding and insight into productionizing machine learning models in large-scale systems, an ability to pick up new technical areas, as well as a commitment to developing, delivering, and supporting algorithms in production.

Qualifications

MS/BS in CS/EE, mathematical or machine learning related disciplines, with 10 or more years of experience
Solid understanding of probability, statistics, machine learning, data science
A/B testing & analysis of ML models, and optimizing models for accuracy
Experience with Hadoop, Spark, or other distributed computing systems for large-scale training & prediction with ML models
End-to-end system design: data analysis, feature engineering, technique selection & implementation, debugging, and maintenance in production
Experience implementing machine learning algorithms or research papers from scratch
Experience with TensorFlow/PyTorch and deep learning models is a plus

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.