Principal Machine Learning Scientist
1 week ago
Role Description: Principal Machine Learning Scientist(IC) – AdTech
About the Team:
Nykaa's AdTech Data Science team is at the forefront of building intelligent, ML-powered advertising products including Sponsored Products, Display Ads, and Creative Personalization. We aim to serve highly relevant, personalized ads to millions of users while maximizing advertiser success through scalable, automated systems. In this Principal IC role, you will be a hands-on technical leader—driving the development of foundational ML models and systems that fuel our ad platform. You'll work closely with product, engineering, and business teams to define and solve high-impact problems in advertising science.
What Are We Looking For?
Education:
- Bachelor's, Master's, or Ph.D. in Computer Science, Machine Learning, Statistics, or a related technical field from a reputable institution.
Experience:
- 10+ years of experience building production-grade ML systems, with 5+ years specifically in AdTech, performance marketing, or large-scale recommender systems.
- Proven track record of delivering impactful ML innovations as a senior individual contributor, from ideation to deployment.
- Deep expertise in one or more of the following domains:
- CTR/CVR prediction
 ,
 bidding dynamics
 ,
 bid/budget optimization
- Multi-objective learning
 ,
 campaign automation
 ,
 target ROAS modeling
- Generative AI for creative optimization
 ,
 personalization
 , or
 agentic workflows
Technical Skills:
- Advanced understanding of
 ML algorithms
 ,
 reinforcement learning
 ,
 Bayesian optimization
 ,
 multi-armed bandits
 , and
 game theory
 as applied to digital advertising.
- Fluency in
 Python
 and ML frameworks like
 PyTorch
 ,
 TensorFlow
 ,
 XGBoost
 , and libraries like
 LightGBM
 ,
 Scikit-learn
 .
- Expertise in
 large-scale data processing
 with
 PySpark
 ,
 SQL
 etc.
 .
 .
- Experience with real-time inference, latency-sensitive model serving, and model monitoring in production environments.
- Strong command of
 A/B testing design
 ,
 incrementality measurement
 , and online experimentation in AdTech systems.
Soft Skills:
- Passion for solving ambiguous, complex problems with scientific rigor and business impact.
- Deep ownership mentality and the ability to independently scope and drive projects end-to-end.
- Clear, concise communication of complex technical concepts to cross-functional stakeholders.
- Collaborative mindset with a track record of influencing product direction through technical thought leadership.
Responsibilities:
ML Development & Deployment:
- Design and develop cutting-edge models for
 predicting ad outcomes
 ,
 bidding decisions
 ,
 budget pacing
 , and
 SKU/ad selection
 .
- Build intelligent automation systems for campaign management that adapt in real-time to advertiser and platform feedback.
- Develop generative models to optimize ad creatives and improve user engagement across formats.
System Architecture & Optimization:
- Own the architecture of core components like model pipelines, simulation frameworks, and personalization layers within the ad platform.
- Drive research into
 long-term value modeling
 ,
 multi-touch attribution
 , and
 campaign lifecycle optimization
 .
Cross-Functional Impact:
- Collaborate with Product and Engineering to design features that are ML-first and measurable.
- Act as the primary technical stakeholder for experimentation, metrics design, and long-term roadmap planning.
Thought Leadership & Innovation:
- Explore and prototype novel approaches using
 Reinforcement Learning
 ,
 RLHF
 ,
 contrastive learning
 , or
 LLMs
 for advertiser assistance or campaign agents.
- Publish internal whitepapers or contribute to external publications and IP generation when applicable.
Why Join Nykaa AdTech?
- Be a key technical architect behind Nykaa's growing AdTech ecosystem.
- Work on cutting-edge problems that intersect ML, economics, personalization, and creative optimization.
- Shape the future of advertising in India's leading beauty and lifestyle platform—with a strong focus on user delight and advertiser success.
- 
					Principal Applied Scientist1 week ago 
 Bengaluru, Karnataka, India Microsoft Full time ₹ 20,00,000 - ₹ 25,00,000 per yearWe 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... 
- 
					  Machine Learning Data Scientist1 week ago 
 Bengaluru, Karnataka, India HSBC Full timeSome careers have more impact than others.If you're looking for a career where you can make a real impression, join HSBC and discover how valued you'll be.HSBC is one of the largest banking and financial services organisations in the world, with operations in 62 countries and territories. We aim to be where the growth is, enabling businesses to thrive and... 
- 
					  Machine Learning Data Scientist2 weeks ago 
 Bengaluru, Karnataka, India HSBC Full time ₹ 12,00,000 - ₹ 36,00,000 per yearSome careers have more impact than others.If you're looking for a career where you can make a real impression, join HSBC and discover how valued you'll be.HSBC is one of the largest banking and financial services organisations in the world, with operations in 62 countries and territories. We aim to be where the growth is, enabling businesses to thrive and... 
- 
					  Principal Applied Scientist8 hours ago 
 Bengaluru, Karnataka, India Oracle Financial Services Software Ltd Full time ₹ 20,00,000 - ₹ 25,00,000 per yearPrincipal Applied Scientist (OCI) - Product Development – Gen AI and AI Solutions Engineering Oracle Cloud Infrastructure blends the speed of a startup with the scale of an enterprise leader. Our Generative AI Service team builds advanced AI solutions that run on powerful cloud infrastructure tackling real-world, global challenges. In this role, you... 
- 
					Principal Machine Learning Engineer2 weeks ago 
 Bengaluru, Karnataka, India Informatica Full time ₹ 20,00,000 - ₹ 25,00,000 per yearPrincipal Machine Learning EngineerInformatica is on a journey to leverage generative AI to simplify cloud data management. Principal Machine Learning Engineer will be responsible for driving the overall architecture and pipelines to enable Machine Learning engineers to build, train and deploy Models at scale across multiple cloud services providers in a... 
- 
					  Principal Machine Learning Engineer2 weeks ago 
 Bengaluru, Karnataka, India, Karnataka Informatica Full timePrincipal Machine Learning EngineerInformatica is on a journey to leverage generative AI to simplify cloud data management. Principal Machine Learning Engineer will be responsible for driving the overall architecture and pipelines to enable Machine Learning engineers to build, train and deploy Models at scale across multiple cloud services providers in a... 
- 
					Principal Data Scientist1 week ago 
 Bengaluru, Karnataka, India TARGET Full time ₹ 20,00,000 - ₹ 25,00,000 per yearJob Description Principal Data Scientist As a Fortune 50 company with more than 400,000 team members worldwide, Target is an iconic brand and one of America's leading retailers. At Target, we have a timeless purpose and a proven strategy. And that hasnt happened by accident. Some of the best minds from diverse backgrounds come together at Target to... 
- 
					  Principal Scientist1 week ago 
 Bengaluru, Karnataka, India GE VERNOVA Full time ₹ 12,00,000 - ₹ 36,00,000 per year**Summary****We are seeking a highly motivated and skilled researcher to join our team in the field of Artificial Intelligence, Machine Learning (AIML) as a Principal Scientist. As a Principal Scientist, you will have the opportunity to lead and shape the technical direction of our AIML research initiatives, mentor junior researchers, and drive the... 
- 
					  Principal Applied Scientist1 week ago 
 Bengaluru, Karnataka, India Oracle Full time ₹ 1,50,00,000 - ₹ 2,50,00,000 per yearOracle Cloud Infrastructure blends the speed of a startup with the scale of an enterprise leader. Our Generative AI Service team builds advanced AI solutions that run on powerful cloud infrastructure tackling real-world, global challenges. In this role, you will:Design, build, and deploy cutting-edge machine learning and generative AI systems, with a focus... 
- 
					Machine Learning Scientist III2 days ago 
 Bengaluru, Karnataka, India Wayfair Full time ₹ 8,00,000 - ₹ 16,00,000 per yearWho We AreWayfair's Advertising business is rapidly expanding, adding hundreds of millions of dollars in profits to Wayfair. We are building Sponsored Products, Display & Video Ad offerings that cater to a variety of Advertiser goals while showing highly relevant and engaging Ads to millions of customers. We are evolving our Ads Platform to empower...