Ad Tech and Ranking
618 open positions
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Data Scientist – Customer Journey, ML & GenAI (H/F) CitechMarseille, fr $40k–$55k1d Design and deploy ML models for customer journey optimization, including segmentation, prediction, recommendation systems, and GenAI-driven insights to improve digital user experiences.
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Applied Scientist II, Sponsored Products and Brands - Advertiser Growth and Strategies
AmazonSeattle, Washington, United States
$172k–$172k1d
Build agentic systems that automatically optimize advertisers' campaigns by holistically managing targeting, bids, budgets, and placements using LLMs, auction simulations, and optimization algorithms.
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Applied Scientist II, RBS Tech
AmazonBengaluru, Karnataka, India
1d
Design and deploy scalable GenAI, NLP, and Computer Vision solutions to enhance customer experience and fix CX defects at scale.
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Lead, Applied Intelligence & Innovation↗ Mediacorp Pte Ltd.SG 1d Leads a multidisciplinary team to identify, incubate, and validate emerging Data & Intelligence capabilities (AI, data science) to advance audience, content, advertising, and consumer intelligence priorities.
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[Data Scientist] Principle Data Scientist – SG CareersatagodaSingapore 2d Lead the design and deployment of ML, AI, and analytical solutions to solve high-leverage problems across Agoda's travel platform.
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Senior Applied Scientist, Search Relevance International ADCI - KarnatakaBangalore, Karnataka 3d Design, develop, and deploy high-performance distributed search systems and machine-learned ranking models to maximize search quality for Amazon customers worldwide.
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Applied Scientist II, Cross Border Science and Analytics
AmazonBangalore, Karnataka
3d
Design, develop, and deploy machine learning models and algorithms to solve complex cross-border challenges for Amazon's international marketplace, enabling seamless product discovery across 20+ countries.
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Applied Scientist II, Cross Border Science and Analytics
AmazonIndia
3d
Design, develop, and deploy machine learning models and algorithms to solve complex cross-border challenges for Amazon's international marketplace, enabling seamless product discovery and purchase across 20+ countries.
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Senior Applied AI/ML Scientist - Marketplace Quality FaireSan Francisco, CA $211k–$211k4d Develop algorithmic solutions for marketplace quality, including pricing integrity, product matching, and violation detection to ensure trust for independent retailers.
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Director, Data Science GopuffUSA $215k–$215k4d Lead the end-to-end data science roadmap for consumer search/recommendations, delivery network optimization, and advertising ranking systems to drive business outcomes.
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Machine Learning Intern (Masters) - Summer 2027↗ DoorDashSan Francisco, CA, US 4d Intern role focused on conducting applied machine learning and AI research to solve real-world problems in discovery, ads, forecasting, fulfillment, and search experiences for DoorDash's on-demand logistics platform.
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Senior Staff Software Engineer, Generative Retail Ad Formats and LLM Applications↗
GoogleMountain View, CA, US
$262k–$262k4d
Design, develop, and deploy next-generation generative AI and LLM-powered ad formats for Google's flagship shopping products to serve billions of shoppers.
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Product Manager, LLM Evaluation & User Insight (E-Commerce Recommendations)↗ TikTok Usds JvSan Jose, CA, US $149k–$149k4d Design and own comprehensive evaluation methodologies (automated, model-based, and human) to assess LLM capabilities in e-commerce contexts; conduct user research to uncover buyer/creator needs and translate insights into actionable model improvement signals.
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Machine Learning Scientist III - Customer Lifetime Value↗ Expedia GroupAustin, TX, US $138k–$138k4d Lead research and implementation of scalable machine learning solutions to build and optimize Customer Lifetime Value (CLV) prediction frameworks for Expedia Group's global travel business.
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Software Development Engineer, Measurement, Ad Tech, and Data Science
AmazonNew York, New York, United States
$158k–$214k4d
Lead the development of innovative software systems and AI-driven solutions for brand measurement, helping advertisers measure, analyze, and optimize campaigns on Amazon Ads.
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Machine Learning Engineering Manager, Evaluation, Agentic Search Capabilities, Proactive AppleSanta Clara, United States of America 4d Lead evaluation systems and metrics for personalized Agentic Search and Personal Question Answering to improve Siri's ability to answer user-specific questions with privacy.
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Lead Data Scientist - Recommendations (applied ML, Reinforcement Learning, Contextual Bandit Design) TargetRemote $132k–$132k4d Lead the design, development, evaluation, and deployment of machine learning systems powering Target's digital recommendations and personalization experiences for millions of guests.
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Machine Learning Scientist, Personalize Intelligence↗ AdyenChicago, IL, US $177k–$177k4d Machine Learning Scientist optimizing multi-objective trade-offs in payment checkout personalization to balance conversion, transaction costs, and fraud exposure.
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Applied Scientist - GenAI, Trust and Store Integrity Science
AmazonSeattle, Washington, United States
$143k–$193k4d
Build advanced machine learning systems using GenAI/LLM/VLM to prevent eCommerce fraud and manage transaction safety at scale.
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Applied Scientist, Tabular Foundational Model, AWS
AmazonSeattle, Washington, United States
$167k–$226k4d
Building Amazon's frontier large-scale tabular foundation model (Mitra family) to enable zero-shot analytics, automated feature engineering, and cross-domain generalization for structured data.
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Senior Applied Scientist - Ads Ranking & Retrieval MicrosoftIndia, Karnataka, Bangalore 5d Develop and productionize identity-clustering, applicant-risk, and behavioral detection models to identify abuse patterns and active accounts using machine learning.
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[Data Scientist] Principle Data Scientist - SG AgodaSingapore (Guoco) 5d Lead the design and deployment of ML, AI, and analytical solutions to solve high-leverage problems across Agoda's travel platform.
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Sr. Manager, Applied Science, GenAI, Amazon Advertising - Creative X
AmazonNew York, New York, United States
$219k–$219k5d
Lead the applied science team responsible for creative quality, safety, moderation, and multimodal content understanding for Amazon Advertising's generative creative assets.
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(USA) Principal, Machine Learning Engineer↗ WalmartSunnyvale, CA, US $169k–$169k5d Lead the design and development of scalable, production-grade ML systems addressing complex business challenges for Walmart International.
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Machine Learning Engineer, Core Experimentation OpenAISeattle 5d Lead technical direction for ML-powered experimentation and insights capabilities, building production systems that learn from product data to generate evidence-backed insights and support high-stakes product decisions.
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Applied Scientist II, Cross Border Science and Analytics
AmazonBengaluru, Karnataka, India
6d
Design, develop, and deploy machine learning models and algorithms to solve complex cross-border challenges for Amazon's international marketplace, improving search relevance, demand forecasting, pricing, and product recommendations.
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Applied Scientist, Amazon Compliance and Safety Services
AmazonBucharest, Romania
6d
Research and develop state-of-the-art machine learning algorithms for product compliance and safety using NLP, multi-modal modeling, and large language models.
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Applied Scientist, Prime Video - Content Reasoning, Enrichment & Localization
AmazonSeattle, Washington, United States
$136k–$184k6d
Build content reasoning, enrichment, and localization features for Prime Video to enhance user viewing experiences and content discovery.
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Applied Scientist III, Demand Technology, Amazon Demand Side Platform, Bravo Non-endemic
AmazonNew York, New York, United States
$184k–$249k6d
Design and improve machine learning models for conversion prediction, bidding, ranking, and measurement to optimize advertiser outcomes like cost per acquisition and return on ad spend for non-endemic brands.
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Applied Scientist, Catalog System Services Science
AmazonSeattle, Washington, United States
$143k–$193k6d
Building state-of-the-art GenAI algorithms and models to enrich product information and infer relationships across billions of products in Amazon's catalog.
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Applied Scientist, Machine Learning Accelerator
AmazonSan Diego, California, United States
$143k–$193k7d
Research and prototype AI/ML applications (Agentic AI, LLM, deep learning) to solve strategic business problems for the Selling Partner Experience (SPX) domains, including trust and safety, recruitment, growth, and support.
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Software Development Engineer, Measurement, Ad Tech, and Data Science (MADS)
AmazonDenver, Colorado, United States
$144k–$194k7d
Building AI-powered self-service analytics products at the intersection of AI and advertising analytics to democratize data access for advertisers.
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Senior Analytics Manager - Search Ontology CatChicago, Illinois, US $159k–$159k7d Define technical vision and architecture for scalable search analytics platforms, integrating NLP and vector search to enhance eCommerce relevance and user experience.
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Senior Applied Researcher - Search eBayKleinmachnow 7d Develop advanced query understanding products and solve core e-commerce search challenges using cutting-edge ML algorithms.
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Applied Scientist II, Partner Science
AmazonSeattle, Washington, United States
$143k–$143k7d
Design, build, and productionize ML/AI and econometric solutions to improve how advertisers find, work with, and succeed through partners.
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Applied Scientist, Responsible AI
AmazonSeattle, Washington, United States
$143k–$193k7d
Advancing the science and practice of Responsible AI (RAI) to enable the deployment of high-standard AI solutions across Amazon's products and services.
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Applied Scientist, International Machine Learning
AmazonGurugram, Haryana, India
7d
Build and deploy advanced machine learning systems to optimize millions of transactions, analyze terabytes of data, and solve real-world business problems for Amazon's International Emerging Stores.
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Principal Data Scientist, Recommendations (PhD) VidmobColombia 7d Build production-grade recommendation systems and creative intelligence models to drive ad effectiveness and creative performance for global marketers.
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Data Scientist↗ CapgeminiPhiladelphia, PA, US $0k–$0k7d Lead algorithmic decision-making at scale by crafting and implementing machine learning models, neural networks, and MLOps practices to enhance personalization and automation in digital products.
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Applied Scientist II, Advertising Incrementality Measurement
AmazonNew York, New York, United States
$172k–$223k7d
Lead the development of scientifically rigorous causal inference models to measure the effectiveness of Amazon Ads and guide advertiser decisions.
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Machine Learning Engineer ZoomInfoRemote $128k–$128k7d Building intelligence for ZoomInfo AI agents by extending the B2B data graph, resolving entity identity, and inferring buying intent from noisy multilingual text.
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Research Scientist - Personalization SpotifyLondon 8d Conduct original research in machine learning and AI to advance Spotify's personalization systems, focusing on large-scale foundation models, generative AI, and post-training methods.
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Machine Learning Scientist III - Agentic Curation↗ WayfairBoston, MA, US 8d Design, build, and deploy machine learning models to identify product relationships, optimize product mix, and develop agentic AI workflows for automated catalog curation and validation at Wayfair.
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Machine Learning Expert, Risk Control - Global E-Commerce↗ ByteDanceSingapore, S00, SG 8d Develop and deploy autonomous, Agent-based large language model solutions to detect inauthentic behaviors, AIGC content, and malicious activities across global e-commerce platforms.
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