Ad Tech and Ranking
551 open positions
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Senior AI Research Scientist – NLP, Information Retrieval & LLMs (Spain Remote)↗ NielsenIQRemote $55k–$70k1mo Research and apply state-of-the-art AI/ML techniques to solve large-scale business problems in recommender systems, NLP, and information retrieval.
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Senior Applied Scientist-Ads Relevance MicrosoftUnited States, Washington, Redmond 1mo Defining ad relevance problems across scenarios to optimize user and advertiser experiences using deep learning, NLP, computer vision, and LLMs.
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Data Scientist II, NAS Returns Tech
AmazonSeattle, Washington, United States
$136k–$184k1mo
Develop scalable ML solutions to minimize purchase anxiety and reduce retail returns for Amazon Fashion customers.
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Chief Technology Officer - Remote↗ EscalonRemote $200k–$200k1mo Build the architecture and core systems for an audience-intelligence platform using AI/ML to predict audience response in entertainment.
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Machine Learning Engineer Graduate (E-Commerce) - 2027 Start (PhD)↗ TikTok Usds JvSan Jose, CA, US $137k–$137k1mo Architect and develop LLM-based systems to process high-dimensional unstructured data (text, logs, conversations) and implement semantic understanding frameworks for a content-driven e-commerce platform.
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Data Scientist II, NAS Returns Tech
AmazonSeattle, Washington, United States
$136k–$184k1mo
Develop scalable ML solutions to minimize purchase anxiety and reduce retail returns for Amazon Fashion customers.
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Data Science Manager TrustpilotCopenhagen 1mo Lead two cross-functional teams of Data Scientists and Engineers to build and deploy ML solutions for automated content moderation and fake review detection on a global review platform.
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Data Scientist↗ Boot BarnIrvine, CA, US $95k–$95k1mo Building the foundation of the Data Science division by developing advanced machine learning models and generative AI solutions to power data-driven products and intelligent agentic systems.
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Senior Manager, Applied Science TekionBangalore HQ 1mo Lead advanced applied science initiatives to drive innovation, optimize business outcomes, and expand data-driven product capabilities in the automotive retail ecosystem.
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Machine Learning Engineer Graduate (E-Commerce Governance) - 2027 Start (PhD)↗ TikTokSeattle, WA, US $154k–$154k1mo Build advanced AI algorithms to combat risks, violations, and low-quality content in e-commerce scenarios including products, shopping carts, short videos, and live streaming.
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Staff/Lead LLM Data Scientist (Singapore based)↗ AgodaSingapore, Singapore 1mo Design, code, and implement machine learning models and algorithms to maximize customer experience, supply side value, and business outcomes for a global travel platform.
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Staff Machine Learning Scientist↗ FinLondon, England, UK 1mo Define new ML features, research algorithms, and rapidly prototype solutions to deliver high-impact customer support products.
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Senior Staff Technical Program Manager PinterestSan Francisco $164k–$164k1mo Lead company-level programs for search signals, offsite data integration, and AI-driven personalization to transform Pinterest into a shopping and inspiration platform.
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Senior Data Scientist↗ Valtech GroupCA $90k–$140k1mo Design, develop, and deploy machine learning and AI-powered products to optimize customer experiences and drive business impact.
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Applied Science Manager, Advertising Trust
AmazonBengaluru, Karnataka, India
1mo
Lead a team of applied scientists building next-generation content moderation intelligence for Amazon Ads, combining multimodal ML, retrieval systems, and generative AI to automate policy enforcement at global scale.
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Director, Data Science↗ ChewyBellevue, WA, US $199k–$199k1mo Lead all Ads Data Science strategy and production implementation for Chewy's onsite and offsite advertising marketplace, defining how modern AI and GenAI systems improve shopper relevance and advertiser outcomes.
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Applied Scientist , AWS Marketing Science
AmazonSeattle, Washington, United States
$143k–$143k1mo
Build and improve machine learning models for lead scoring, customer segmentation, and account prioritization to drive AWS marketing engagement and conversion strategies.
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Applied Science Manager, AWS Startups, AWS Startups
AmazonSeattle, Washington, United States
$184k–$249k1mo
Lead a team of applied scientists and analysts to build data and machine learning capabilities for AWS Startups, unifying founder signals and delivering insights to products serving startups.
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Associate Director - Search & Recommendations Science↗ WayfairMountain View, CA, US $300k–$300k1mo Lead scientific and technical direction for search, recommendations, and personalization systems at massive scale to transform product discovery.
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Group Director, Software Engineering - Applied AI↗ WalmartSunnyvale, CA, US $195k–$195k1mo Lead an elite applied AI and engineering team to build Walmart's next-generation intelligence layer using large-scale foundational models trained on multi-modal datasets.
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Site Lead Data & ML AlmediaLondon 1mo Lead the London data/ML function to build a team and technical culture from first principles, driving business outcomes in reward/payout optimisation, real-time personalisation, and offer ranking.
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Senior Applied Scientist, Shopping Convo Foundations - Pre-purchases Science
AmazonSeattle, Washington, United States
$192k–$192k1mo
Lead research and development of novel machine learning approaches to solve complex catalogue expansion and product attribute challenges, translating scientific breakthroughs into production-ready solutions.
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Applied Scientist, Global Risk Intelligence and Prevention, Seller Abuse Prevention
AmazonSeattle, Washington, United States
$143k–$193k1mo
Lead the development and implementation of advanced AI solutions to detect and prevent marketplace abuse across Amazon's catalog, reviews, financial risks, and competitor abuse.
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Research Scientist Graduate (ML Recommendation Systems) - 2027 Start↗ ByteDanceSan Jose, CA, US $128k–$128k1mo Researching the fusion of recommendation systems and large language models (LLMs)/multimodal models to power ads, search, and recommendations.
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Lead Data Scientist GymsharkIQ 1mo Provide technical leadership and assurance for data science solutions, ensuring they are designed, built, and operated to high technical standards aligned with business priorities.
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Applied Scientist, Customer360↗
AmazonSeattle, WA, US
$143k–$193k1mo
Research, design, and development of new AI technologies for personalization, specifically building systems that learn customer preferences and retrieve relevant knowledge using NLP, LLMs, and entity resolution.
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Senior Applied Scientist↗ TomTomMadrid, MD, ES 1mo Design, develop, and deploy scalable AI/ML solutions to enhance the accuracy, coverage, and usability of TomTom's maps and Points of Interest (POI) products.
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Principal Applied Scientist, Ads Optimization, FAIM
AmazonPalo Alto, California, United States
$199k–$199k1mo
Invent models for joint budget allocation across sponsored ad products to maximize advertiser outcomes and long-term customer value.
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Data Scientist - dataTV - Paris H/F Iliad-FreeParis, IDF, fr 1mo End-to-end Machine Learning projects for content recommendation, A/B testing, and content acquisition tools serving Iliad's TRAX multimedia platform.
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Senior Software Engineer II, Machine Learning↗ NarvarRemote 1mo Design and deploy machine learning algorithms for e-commerce, consumer trends, logistics, and new products using real-world consumer data.
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Sr. Applied Scientist, Prime AI/ML Science
AmazonSeattle, Washington, United States
1mo
Develop AI/ML models and infrastructure at TB scale to model customer behavior, optimize the Amazon Prime membership experience, and build GenAI/LLM foundation models for personalization.
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Applied Scientist, Search Ranking
AmazonSeattle, Washington, United States
$167k–$226k1mo
Build efficient early-stage search ranking models and personalization techniques for billions of queries and hundreds of millions of customers.
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Staff Applied Scientist, Search & Discovery MaterialbankRemote 1mo Design and build search retrieval, ranking, and recommendation systems for a global architecture and design material marketplace.
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Applied Data Scientist NiftTel Aviv, Israel 1mo Build and scale production-grade recommendation systems to drive marketplace outcomes by matching people with brands.
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Sr Applied Scientist, Recommendations eBayToronto $142k–$142k1mo Build and deploy state-of-the-art recommendation systems (retrieval, ranking, LLMs) at scale for eBay's global e-commerce platform to personalize buyer experiences and drive revenue.
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Senior Applied AI Scientist (AI Marketplace)↗ PreplyBarcelona, Catalonia, Spain 1mo Design and deploy intelligent systems for real-time tutor-learner matchmaking and personalized learning journeys in a global marketplace.
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Applied Scientist, Prime Video Science
AmazonSeattle, Washington, United States
$143k–$143k1mo
Build machine learning and deep learning models on large-scale global data to simulate customer behavior and answer counterfactual 'what-if' questions guiding content and product investment decisions.
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Engineer 5 - Machine Learning ComcastIndia - Chennai, Comcast India Engineering Cent 1mo Leading advanced machine learning initiatives, pioneering prototype design, and translating complex algorithms into practical software solutions for product teams.
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Applied Scientist II, IESP Digital Payments↗
AmazonSão Paulo, SP, BR
1mo
Design and build scalable payment systems and Agentic AI solutions for Amazon's checkout and financial services in emerging markets.
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Principal Data Scientist JiostarBengaluru - EGL 1mo Define scientific vision and technical strategy for an AI-native personalization platform powering Search, Recommendations, Homepage, Ads, and Notifications for millions of users.
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Data Scientist III OpenxRemote $40664k–$45448k1mo Own medium-to-large data science projects end-to-end, building production-ready models and analyses to solve real marketplace problems in digital advertising.
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Applied Scientist II, Core Shopping Data Science
AmazonSeattle, Washington, United States
$143k–$193k1mo
Design and build LLM-based measurement pipelines to quantify ambiguous customer perception defects in the shopping experience (search, homepage, detail pages) and establish production standards for quality evaluation.
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Applied Scientist, Procurement
AmazonLuxembourg, Luxembourg
1mo
Research, design, and development of new AI technologies for Amazon's Global Procurement, focusing on forecasting, information retrieval, and large language models.
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