Ad Tech and Ranking
547 open positions
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Multimodal LLM Algorithm Engineer Intern (Global E-Commerce, Knowledge Graph) - 2027 Start↗ TikTokSingapore, S00, SG 1mo Build multimodal content understanding, product understanding, semantic matching, pricing intelligence, and intelligent Agent capabilities for global content-commerce scenarios using massive-scale video and product data.
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Senior Applied ML/AI Scientist - Search FaireKitchener-Waterloo, ON $211k–$211k1mo Design and productionize next-generation search ranking algorithms and natural-language discovery systems using deep learning, LLMs, and graph neural networks to personalize product discovery for independent retailers.
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Principal Applied Scientist MicrosoftUnited States, Washington, Redmond 1mo Lead content-quality understanding at scale and advance the recommendation & ranking stack by designing, deploying, and productionizing large-scale DNN/LLM-enhanced models.
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Applied Scientist II, IN SPS Tech
AmazonBengaluru, Karnataka, India
1mo
Design, implement, test, deploy, and maintain innovative science solutions to accelerate Amazon Marketplace business in India and emerging markets, focusing on Selection quality and fee revenue.
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Principal Applied Scientist, Personalization
AmazonSeattle, Washington, United States
1mo
Architecting next-generation LLM-based reasoning systems and real-time multi-objective ranking systems to personalize shopping experiences for hundreds of millions of customers at Amazon's scale.
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(USA) Principal, Data Scientist↗ WalmartHoboken, NJ, US $132k–$132k1mo Lead development and deployment of advanced analytical models and machine learning solutions to drive strategic business decisions for Walmart Connect's AdTech Engineering team.
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AI / ML Data Scientist (Across levels)↗ The Nielsen CompanyKA, IN 1mo Architect and implement AI/ML systems to deliver comprehensive understanding of audience behavior and unlock novel insights from complex audience data for media measurement.
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Data Scientist- Machine Learning & AI LightricksJerusalem 1mo Build prediction, classification, optimization, and causal inference models to drive revenue planning, marketing efficiency, and product strategy for an AI-powered photo/video editing app.
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Data Scientist (Europe, Asia) SportygroupRemote 1mo Build and productionize data-driven ML systems for personalization, search, and recommendation to enhance user experience and drive business conversion.
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Senior Machine Learning Scientist (Experiences) TripadvisorRemote 1mo Technical lead and pod architect for the core discovery engine, owning ML strategy for Search, Retrieval, Ranking, and Content AI to power travel itinerary planning.
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Principal AI Engineer↗ VerizonBasking Ridge, NJ, US $121k–$121k1mo Lead individual contributor owning complex propensity models to predict customer behaviors, churn risk, and lifecycle triggers for hyper-personalization and churn reduction.
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(USA) Staff, Data Scientist↗ Sam's ClubSunnyvale, CA, US $143k–$143k1mo Staff Data Scientist leveraging advanced analytics and machine learning to transform complex data into actionable business insights for Walmart's digital shopping experiences.
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Applied Scientist, Data Processing Agents Science
AmazonSanta Clara, California, United States
$172k–$222k1mo
Design and build agentic solutions and ML-powered automation to simplify, optimize, and automate big data processing workflows for AWS customers.
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Senior Applied Scientist, Sponsored Products Bidding
AmazonPalo Alto, California, United States
1mo
Define long-term science vision and lead AI/ML initiatives for Sponsored Products bidding controls to drive discovery and sales for merchants on Amazon.
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Sr. Applied Scientist, PXT Central Science
AmazonSan Francisco, California, United States
$167k–$167k1mo
Build production machine learning systems to solve complex business problems at scale, specifically personalizing manager onboarding and development experiences.
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Senior Applied Scientist, Traffic Quality
AmazonBengaluru, Karnataka, India
1mo
Define long-term science vision and build advanced capabilities to detect sophisticated invalid traffic (IVT), including non-human traffic and bot networks, across programmatic advertising at petabyte scale.
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Senior Applied Scientist , Amazon Ads
AmazonSeattle, Washington, United States
$167k–$167k1mo
Research and build next-generation ML solutions, including generative AI and LLM applications, to transform advertising experiences at scale.
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Director, Data Science & Algorithms - CX Product Experiences StitchfixSan Francisco, CA $225k–$225k1mo Lead strategy and execution for machine learning, AI, and experimentation capabilities powering personalized shopping experiences for clients and stylists.
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Data Scientist - Machine Learning CatawikiPortugal 1mo Build scalable, robust machine learning models and actionable insights to enhance user experience, optimize workflows, and ensure platform safety for a global online auction marketplace.
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Senior Machine Learning Engineer / Data Scientist BloomreachRemote $50k–$50k1mo Design and implement cutting-edge AI and GenAI driven algorithmic components for contextual personalization, predictions, and behavioral insights to personalize digital experiences.
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Senior Applied Scientist, ASCS AI Lab Team
AmazonSeattle, Washington, United States
$167k–$226k1mo
Designing and implementing novel AI solutions, including Generative AI, LLMs, and autonomous agents, for Amazon's product catalog and selection systems.
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Senior Member of Technical Staff eBaySan Jose $218k–$218k1mo Update the search stack and develop new conversational search and natural language query features to improve how users convey shopping intent.
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Sr Applied Scientist, Product Detail Page
AmazonSeattle, Washington, United States
$167k–$226k1mo
Design and develop scalable multi-tiered shopping application algorithms to optimize the Amazon Product Detail Page and enhance the global online shopping experience.
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Sr. Applied Scientist, Pricing Science↗
AmazonSeattle, WA, US
$167k–$226k1mo
Develop and deploy algorithmic pricing and promotion models using deep learning and causal inference to optimize Amazon's pricing strategies and measure their impact on customer behavior.
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Data Science Intern, 4 weeks, Counter-Strike 2 Knowledge Required↗ Pureskill.GgRemote $36k–$36k1mo Build a state-of-the-art round win probability model for Counter-Strike 2 that predicts odds based on tick-level game state and provides explainable feedback for player coaching.
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Data Scientist Place-Corporate-CareersRemote $135k–$135k1mo End-to-end ownership of data science and machine learning work, including computer vision, valuation modeling, generative AI search, and agentic/reasoning systems.
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Senior Data Scientist (Business Transaction Platform) GrabSingapore, sg 2mo Design and implement ML and NLP solutions for entity tagging, taxonomy enrichment, and multilingual entity mapping to build scalable knowledge graph systems for Grab Food and Grab Mart.
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Applied Science Manager , Amazon Music Catalog Quality
AmazonBengaluru, Karnataka, India
2mo
Lead a team of scientists to develop and execute solutions for music catalog metadata quality, including detection, measurement, and remediation of issues in artist info, track attributes, and content tags.
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Applied Scientist, Amazon Music - Catalog Quality
AmazonBengaluru, Karnataka, India
2mo
Design and develop end-to-end systems to detect, measure, and remediate quality issues in music metadata (artist info, track attributes, versions, content tags) using Generative AI, classical ML, NLP, and Computer Vision.
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Applied Scientist II - Personalization, Customer Intent Science↗
AmazonSeattle, WA, US
$143k–$193k2mo
Build next-generation product recommendation engines using Generative AI, LLMs, and machine learning to improve customer shopping experiences.
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Senior Data Scientist JiostarBengaluru- We Work 2mo Build solutions for ad delivery, targeting, and performance optimization across live sports and entertainment using advanced ML models and GenAI.
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Applied Scientist (GenAI/LLM), Sandstone
AmazonSan Diego, California, United States
$143k–$143k2mo
Developing foundational behavioral models for Amazon Stores using Generative AI, LLMs, and large model training techniques to fuse world knowledge, customer behavior, and e-commerce domain knowledge.
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Applied Scientist, Linear Personalization Experience Team (LPEX)
AmazonSeattle, Washington, United States
$143k–$193k2mo
Design, develop, and deploy machine learning models for content recommendation, viewer engagement optimization, and real-time personalization for Prime Video's Linear TV experience.
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Applied Scientist III, Sponsored Products and Brands Auctions↗
AmazonSeattle, WA, US
$167k–$167k2mo
Architecting next-generation systems and pioneering applied science for multi-modal generative AI in advertising auctions to improve search page relevance and ad allocation.
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Applied Scientist III, Sponsored Products and Brands Auctions↗
AmazonNew York, NY, US
$167k–$167k2mo
Architecting next-generation GenAI and ML systems to determine ad ranking, allocation, and quality on Amazon's search page to improve shopper discovery and advertiser performance.
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Software Dev Engineer, Sales AI↗
AmazonToronto, ON, CA
$115k–$192k2mo
Build end-to-end recommendation generation and delivery platforms for Amazon Advertising using Generative AI and agent frameworks to serve sales users and advertisers.
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