Ad Tech and Ranking
641 open positions
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Applied Scientist, Sponsored Products and Brands
AmazonSeattle, Washington, United States
$143k1mo
Design and deploy generative AI and large language model solutions to mine shopper behavioral data, model intent and preferences, and optimize the advertising experience for customers and advertisers.
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Applied Scientist, Traffic Quality
AmazonBengaluru, Karnataka, India
1mo
Build advanced capabilities at petabyte scale to detect sophisticated invalid traffic (IVT), including non-human traffic, bot networks, and fraudulent engagement patterns in programmatic advertising.
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Fast Food TVC - Wednesday 16th or Thursday 17th September 2026 iSpry AgencySpring Farm, New South Wales 1mo Role type: crowd extra for fast food TV commercial Builds: fast food TV commercial Domain: entertainment / advertising Deliverable: production ML models | product features | dashboards & analysis | research | client delivery | infrastructure |…
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Senior Applied AI/ML Scientist - Brand Growth FaireSan Francisco, CA $211k2mo Develop algorithmic solutions for notification, recommender systems, advertising attribution, and LTV predictions to help independent brands grow on a two-sided wholesale marketplace.
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Applied Scientist MicrosoftChina, Beijing, Beijing 2mo Conduct research and develop innovative AI/ML solutions to solve challenging product and business problems.
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Sr AI Engineer- Item Science TargetBangalore,India 2mo Design and implement GenAI, Computer Vision, NLP, and ML algorithms to power solutions for Mech/item Digital partners.
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Senior Manager ML Engineer eBayAmsterdam 2mo Lead a team of applied researchers and ML engineers to build and productionize next-generation Generative AI capabilities (LLMs, multimodal models, agents) for eBay's global ecommerce platform.
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Sr. Applied Scientist, Customer Behavior Analytics (Marketing Measurement Solutions)
AmazonSeattle, Washington, United States
$167k–$226k2mo
Develop scalable ML and causal inference solutions to estimate the effectiveness of Amazon marketing efforts and provide actionable insights to marketing teams.
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Data Scientist II, RufusX Science UK↗
AmazonLondon, England, UK
2mo
Develop conversation-based, multimodal shopping experiences and optimize AI-driven search and shopping assistant systems using machine learning and analytics.
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Senior Applied Scientist, Amazon Music - Search Science, Amazon Music – Search Science
AmazonBengaluru, Karnataka, India
2mo
Define and execute the applied science roadmap for music search and content discovery systems, impacting millions of customers worldwide.
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Applied Scientist-II, Amazon Music - Search Science, Amazon Music – Search Science
AmazonBengaluru, Karnataka, India
2mo
Design, develop, and deploy end-to-end machine learning systems to improve search retrieval accuracy, latency, and relevance for Amazon Music's audio content discovery.
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Applied Scientist, Pricing Science
AmazonSeattle, Washington, United States
$143k–$193k2mo
Build production-scale causal ML pipelines to power Amazon's pricing decisions, bridging econometric analysis and machine learning to optimize customer lifetime value and pricing accuracy.
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Senior Data Scientist, Department of AI Vend Marketplaces ABRemote 2mo Develop, experiment with, and build machine learning and AI systems that provide new user experiences and business model innovation for marketplace products.
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Data Scientist UbisoftSingapore, sg 2mo Design, build, and maintain machine learning models and AI products deployed in production to drive player retention, engagement, and business value through personalization and decisioning systems.
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Machine Learning Manager AppleShanghai, China 2mo Lead the Online Retail Decision Automation team to build applied ML solutions for Apple's Online and Retail stores, delivering personalized shopping experiences and fraud detection.
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Applied Scientist, CMT
AmazonBengaluru, Karnataka, India
2mo
Design and optimize machine learning models, large language models, and recommender systems to solve complex technical challenges in competitive monitoring and improve customer experience at a worldwide scale.
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Applied Scientist II, CMT
AmazonBengaluru, Karnataka, India
2mo
Lead the evolution of Competitive Monitoring systems using machine learning, large language models, and recommender systems to improve customer experience at a worldwide scale.
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Principal Data Scientist, Generative Recommendations & AI- Spain Remote↗ VistaprintRemote 2mo Lead the evolution of a unified recommendation platform into an agentic, intent-based system using foundation models and LLMs.
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Senior Full-Stack Data Scientist - Growth Algorithms StitchfixRemote, USA $180k2mo Design and deploy machine learning algorithms to optimize client acquisition, retention, and reactivation programs in retail.
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Senior Full-Stack Engineer (ML & Data) Stockholm - Hybrid Bumbli Group ABStockholm, Sweden 2mo Build AI agents that audit and optimize e-commerce advertising by connecting real profit data to ad accounts and shipping prediction models as production software.
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Senior Machine Learning Scientist IntercomBerlin, Germany 2mo Define new ML features, research algorithms, and rapidly prototype ML solutions for customer support agents.
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Applied Scientist III, Sponsored Products and Brands - Advertiser Growth - Cross-border Seller Experience (CBSX)
AmazonSeattle, Washington, United States
$167k2mo
Build agentic and ML systems that autonomously create, structure, and manage ad campaigns for cross-border advertisers on Amazon, removing barriers to growth and simplifying the advertising lifecycle.
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Senior Principal Applied AI Scientist PreplyLondon 2mo Lead the development of AI-driven personalized learning solutions and shape the scientific roadmap for intelligent tutor systems.
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Agentic Commerce AI Agent Algorithm Engineer↗ ShopeeSingapore, Singapore 2mo Design and optimize a consumer-facing e-commerce Shopping Agent covering intent understanding, task planning, query rewriting, product search/recommendation, tool calling, memory, and multi-turn dialogue.
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Senior Software Engineer: AI SwayableNew York $175k2mo Building, maintaining, and optimizing the high-performance analytics engine and AI/ML tools that power Swayable's core product for measuring public opinion and ad impact.
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Senior Applied Scientist, Sponsored Products and Brands
AmazonNew York, New York, United States
$184k–$249k2mo
Improving the quality of agentic solutions and their impact within the ads delivery stack using generative AI and LLMs.
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Applied Scientist, Prime Video Commerce Insights
AmazonLondon, England, United Kingdom
2mo
Develop and deploy customer-facing ML models to personalize commerce decisions (subscriptions, channels, transactions) across Prime Video, serving hundreds of millions of customers.
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Member of Technical Staff (Search Quality Analyst) PerplexityBelgrade 2mo Design metrics, build data pipelines, and improve the quality of search and answer systems at the intersection of data analysis and engineering.
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Machine Learning Engineer Rezolve AiSingapore 2mo Design, develop, and optimize machine learning models to solve complex business and customer problems in AI-driven commerce.
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Senior Applied Scientist, Brand Protection Machine Learning↗
AmazonSeattle, WA, US
$167k–$226k2mo
Design and execute science strategy for complex brand-protection problems using multi-modal and LLM-based approaches to identify and prevent abuse and counterfeit activity on Amazon's marketplace.
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Senior Software Development Engineer, Customer 360
AmazonSeattle, Washington, United States
$168k–$227k2mo
Develop a unified customer personalization service leveraging advanced AI and machine learning to deliver real-time, personalized experiences across Amazon's diverse businesses.
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Marketing Engineer FonioVienna €65k2mo Build predictive CLTV models and ML scoring systems to optimize paid media targeting and bidding for AI phone agents.
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Intermediate Data Scientist - Bees Data BeesCampinas, Brazil 2mo Develop and implement machine learning and deep learning algorithms for portfolio optimization, recommendations, personalization, promos, segmentation, imputation, and insights discovery.
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Sr.Director, Data Science & Data Engineering CoupangMountain View $184k2mo Lead a global 20-person organization of Data Scientists and Data Engineers to optimize Search and Discovery experiences using LLMs, ranking models, and personalization systems.
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Applied Scientist II, Prime Video Personalization and Discovery Science, Prime Video - Personalization and Discovery Science
AmazonSunnyvale, California, United States
$143k2mo
Develop foundation models for content understanding and time sequence models to predict customer behavior patterns and viewing trajectories for Prime Video personalization and discovery.
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Sr. Applied Scientist, Prime Video - Personalization and Discovery Science, Prime Video - Personalization and Discovery Science
AmazonSunnyvale, California, United States
$167k2mo
Building and guiding machine learning models from the ground up to power recommendation and personalization experiences for Prime Video customers.
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AI/ML Engineer, Hiring Intelligence, Science & Experimentation (HIRISE)
AmazonArlington, Virginia, United States
$168k–$227k2mo
Building state-of-the-art AI systems, machine learning algorithms, and advanced software tools to reinvent the hiring process and deliver scale, sophistication, and accuracy for Amazon Talent Acquisition operations.
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(Senior) Data Scientist (all genders) FlaconiBerlin, Berlin, Germany 2mo Develop and deploy machine learning, Generative AI, and Agentic AI solutions to optimize e-commerce operations across Europe.
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Applied Scientist II, International Machine Learning
AmazonBengaluru, Karnataka, India
2mo
Build and deploy advanced machine learning systems to optimize millions of daily transactions, analyze terabytes of data, and solve real-world business problems for Amazon's India Consumer Businesses.
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Senior Applied Scientist, Search Relevance International
AmazonBengaluru, Karnataka, India
2mo
Design, develop, and deploy high-performance distributed search systems to maximize search quality and effectiveness for Amazon customers worldwide, specifically focusing on the Relevance India team's expansion efforts.
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Applied Scientist II, Personalization, Grocery P13N
AmazonSeattle, Washington, United States
$143k–$193k2mo
Develop novel machine learning models and features to personalize the grocery shopping journey for hundreds of millions of customers globally using LLM-based techniques and real-time ranking systems.
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Principal Research Scientist OuryahooUnited States of America $161k2mo Lead research and production deployment of large-scale algorithms for budget pacing, bid optimization, and marketplace supply/demand balancing using agentic AI workflows.
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Senior Applied Scientist, International Machine Learning
AmazonBengaluru, Karnataka, India
2mo
Build and deploy advanced machine learning systems to optimize millions of daily transactions, analyze terabytes of data, and solve real-world business problems for Amazon's India Consumer Businesses.
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Software Development Engineer II (ML), CMT
AmazonChennai, Tamil Nadu, India
2mo
Architect real-time systems that ingest, analyze, and act on competitive data at scale using machine learning and agentic workflows to power Amazon's competitive advantage.
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