Ad Tech and Ranking
642 open positions
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Computer Scientist - Remote Work↗ BairesDevRemote 11d Designing and implementing scalable algorithmic solutions for inference, ranking, matching, classification, and optimization problems on massive datasets.
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Applied Scientist, ITA-Global Hiring Science
AmazonVancouver, British Columbia, Canada
CA$149k–CA$249k11d
Design and implement advanced AI models using LLM and GenAI technologies to develop fair and accurate machine learning models for hiring.
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Applied Scientist II, Sponsored Products and Brands Agent↗
AmazonToronto, ON, CA
CA$149k–CA$249k11d
Design and implement machine learning models and algorithms for advertiser-facing AI experiences in sponsored products and brands advertising.
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Senior Applied Scientist, Amazon Business - External Integrations ADCI HYD 13 SEZHyderabad, Telangana 11d Design and implement ML and GenAI capabilities for Amazon Business external integrations, enabling smarter, faster, and more reliable connections between business users and partner procurement/ERP/finance systems.
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Senior Applied Scientist MicrosoftUnited States, Washington, Redmond 11d Evaluate advances in information retrieval, NLP, and large language models; adapt promising approaches to enterprise data and product needs; modernize the search stack for agentic and traditional search.
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Senior AI/ML Engineer, Media Understanding↗ AppleCupertino, CA, US $185k–$325k12d Building systems that help Apple understand media content (songs, episodes, shows, games) to power experiences across Apple Music, Podcasts, TV, and Sports.
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Applied Scientist III, BR Stores - CM & RVM↗
AmazonSão Paulo, SP, BR
12d
Define and own complex machine learning solutions for the consumer space, including targeting, measurement, creative optimization, and multivariate testing.
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Data Scientist↗ Mobilewalla Pte. Ltd.Jurong Island, S00, SG 12d Develop and adapt machine learning models, specifically fine-tuning large language models using proprietary datasets to solve consumer intelligence problems.
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Applied Scientist / Applied AI Scientist / Principal Applied Scientist↗ Modus Mobility 12d Applies scientific methods, machine learning, and statistical analysis to solve practical problems and improve products, services, or business processes.
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Líder Técnico - ML/NLP para Busca Semântica em Android↗ SidiManaus, Amazonas, Brazil 12d Technical leadership for a multidisciplinary ML/Data/Android team improving Query Processing (QP) and Ranker models for Portuguese and Spanish in an embedded Android search product.
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Applied Scientist, Minerva
AmazonBengaluru, Karnataka, India
12d
Build and deploy ML models for fraud, abuse, and content risk detection across Kindle Direct Publishing and Kindle Unlimited.
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Applied Scientist II, Advertising Trust
AmazonIndia
12d
Design, build, and ship ML models to evaluate advertising content at scale, balancing accuracy, latency, and cost to protect customer experience.
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Senior Data Scientist - Portfolio AbinbevCampinas, Brazil 13d Develop end-to-end AI/ML products for portfolio optimization, recommendations, personalization, forecasting, and insights discovery to serve global business teams and customers.
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Applied Science Manager, Alexa For Shopping
AmazonSeattle, Washington, United States
$184k–$286k13d
Managing a team focused on post-training and alignment of Large Language Models (LLM) and Vision-Language Models (VLM) to improve conversational shopping experiences.
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Applied Scientist II, Prime Video - Ads Science↗
AmazonSeattle, WA, US
$143k–$193k13d
Develop and deploy machine learning models to personalize advertising decisions, predict customer behavior, and optimize ad strategies for Prime Video's streaming platform.
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Founding Software Engineer↗ BlankspaceLondon, England, UK 13d Own the AI & ML models powering citation, brand extraction, ad matching, and pricing in an ad-tech auction system.
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Applied Scientist, EU INTech Consumer Selection Discovery, EU InTech Consumer Selection Discovery↗ Amazon ScienceMadrid, Community of Madrid, Spain 13d Build GenAI-powered data solutions, agentic systems for quality detection, and ranking/recommendation models for Haul shopping experiences at Amazon scale.
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Principal Applied Scientist, Ads Measurement Science
AmazonNew York, New York, United States
$219k–$296k13d
Lead technical vision and execution for Amazon Advertising's performance measurement products, measuring comprehensive ad spend impact (online/offline, short/long-term) to help advertisers optimize media portfolios.
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Data Scientist Lead↗ IdeenSão Paulo, São Paulo, Brazil 13d Lead a technical team of data scientists for a high-traffic digital marketplace, focusing on scaling production ML models for search ranking, proprietary scoring, and item recommendation.
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Software Engineer, ML, Search Ads Creatives↗
GoogleMountain View, CA, US
$147k–$210k13d
Build and deploy ML models for generating and composing high-quality ad creatives using GenAI and LLMs to address user needs and optimize advertiser ROI.
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Senior Applied Scientist, Amazon Business - External Integrations
AmazonHyderabad, Telangana, India
13d
Design and implement ML and GenAI capabilities for Amazon Business external integrations, enabling smarter, faster, and more reliable connections between Amazon Business and partner procurement, ERP, and finance systems.
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Principal Applied Scientist, FAIM (Full Funnel Agentic Intelligence and Models)
AmazonNew York, New York, United States
$199k–$309k13d
Building foundational optimization science and agentic AI systems for next-generation advertising, including campaign recommendation, budget allocation, and long-term sales modeling.
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Sr Applied Scientist, FAIM (Full Funnel Agentic Intelligence and Models)
AmazonNew York, New York, United States
$184k–$249k13d
Lead innovation in a green-field Ads Foundational Model using agentic AI to simplify full-funnel advertising solutions and improve advertiser performance.
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Applied Scientist II, Amazon Business - External Integrations
AmazonHyderabad, Telangana, India
13d
Build ML and GenAI capabilities for Amazon Business external integrations, enabling smarter, faster, and more reliable connections between Amazon Business and partner procurement, ERP, and finance systems.
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Principal Research Scientist - AI & Data Science NielsenIQBogota, Bogota, co 13d Research and develop new methodologies, prototype solutions, and deploy R&D projects in the ML/AI space to improve products and processes.
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Search Scientist / Information Retrieval Scientist / Search Relevance Scientist↗ Eagle Mining Company 14d Researches and develops methods to help users find useful information in large collections using information retrieval, machine learning, and NLP.
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Senior Staff Research Data Scientist, Search Ads in AI Experiences↗
GoogleMountain View, CA, US
$262k–$364k14d
Reinventing Search Ads for the AI era by building the tech stack, user experience, and business model for AI Overview and AI Mode.
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Applied Scientist, PXT LEGENDS
AmazonEdinburgh, Scotland, United Kingdom
14d
Design and implement machine learning models and recommendation systems to power Amazon's hiring process, connecting candidates to jobs at global scale.
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Data Scientist I, Amazon 1P Credito, Payments↗
Amazon
15d
Generate power business insights from very large datasets to enable needle moving business impacts through statistical analysis and machine learning.
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(USA) Senior, Machine Learning Engineer↗ WalmartSunnyvale, CA, US $143k–$286k15d Lead design, development, and deployment of scalable machine learning solutions, specifically auto-research capabilities that automate model training optimization, experimentation, and evaluation to accelerate the ML development lifecycle.
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Sr. Manager, Applied Science, Sponsored Products and Brands
AmazonPalo Alto, California, United States
$252k–$340k15d
Lead the Sponsored Products and Brands Search Relevance team to define and measure search quality, invent new product presentation experiences, and build AI infrastructure for customer experience metrics.
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Applied Scientist II, Advertising Incrementality Measurement
AmazonNew York, New York, United States
$172k–$223k15d
Lead the development of scientifically rigorous causal inference models and AI solutions to measure the effectiveness of Amazon Ads and guide advertiser decisions.
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Senior Applied Scientist, PV Ads Science
AmazonSeattle, Washington, United States
$167k–$249k15d
Lead research and development of ML models to personalize advertising decisions for 100M+ customers across 100k+ titles on Prime Video.
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Applied Scientist, Minerva
AmazonIndia
16d
Build and maintain risk detection models for Kindle Direct Publishing and Kindle Unlimited to prevent fraud, abuse, and harmful content.
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Machine Learning Engineer Graduate (Global E-Commerce, Platform Governance) - 2026 Start (PhD) [] ByteDanceSingapore 16d Build advanced AI models to detect risks, low-quality merchants/products/creators, and maintain platform security in e-commerce scenarios.
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Sr. Manager, Applied Science, Sponsored Products and Brands↗
AmazonPalo Alto, CA, US
17d
Lead the Sponsored Products and Brands Search Relevance team to define and measure search quality at scale using AI, ensuring product recommendations are relevant and trustworthy for hundreds of millions of customers.
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Data Scientist II H-E-BAustin, Texas 18d Design, develop, and implement machine learning and AI solutions to support business objectives in the retail domain.
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Data Science Manager KayakConcord Office $165k–$200k18d Lead the Concord-based data science team to own strategy and roadmaps for AdTech/Auction and the shared Experimentation Platform, driving production ML solutions that improve user experience and business performance.
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Applied Scientist, Amazon Canada Technology, Amazon Canada
AmazonVancouver, British Columbia, Canada
CA$149k–CA$249k18d
Develop and train reasoning LLMs, embedding models, and multi-objective optimization systems to power personalized search and ranking for Canadian customers.
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Content Understanding LLM Algorithm Engineer Graduate (Global E-Commerce) - 2027 Start (PhD) TikTokSingapore 18d Build and optimize domain-specific large language models (LLM/MLLM) for e-commerce governance, including content moderation, violation detection, and policy recommendation.
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Senior Applied Scientist, PV Ads Science↗
AmazonNew York, NY, US
$167k–$249k19d
Lead research and development of ML models to personalize advertising decisions for 100M+ customers across 100k+ titles on Prime Video, handling heterogeneous responses, signal sparsity, and small effect sizes.
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Senior LLM / Multimodal AI Engineer↗ Dataspark Pte LtdSingapore, S00, SG 19d Architect, train, evaluate, and deploy large-scale Vision-Language Models (VLMs) and Large Language Models (LLMs) for processing billions of user-generated content and advertising videos to power recommendation and advertising systems.
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Senior Applied Scientist, Sponsored Products
AmazonSeattle, Washington, United States
19d
Lead end-to-end Machine Learning and Generative AI projects to retrieve relevant sponsored products for shopper queries, serving billions of daily ad impressions.
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算法实习生（J106789） Baidu北京市 19d Researching ad strategy algorithms for search verticals using large model technologies to optimize business outcomes.
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Applied Scientist, Minerva
AmazonBengaluru, Karnataka, India
19d
Build and maintain risk detection models for Amazon's Books business (KDP, Kindle Unlimited) to prevent fraud, abuse, and harmful content.
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