Research Scientist - TikTok E-Commerce Recommendation Foundation
$148.2k - $300.96kEllis Technologies, Inc.
Research Scientist - TikTok E-Commerce Recommendation Foundation Location: Seattle Employment Type: Regular Job Code: A222038A Salary range: $148,200 - $300,960 annually. Benefits: Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure). Team The E-commerce Recommendation Foundation team is dedicated to building the next-generation recommendation intelligence. We aim to develop a unified Foundation Model that supports multi-business and multi-scenario recommendation systems, covering the full pipeline from retrieval and ranking to re-ranking, and driving a comprehensive upgrade in intelligence and generative capability. We believe the future of recommendation systems goes beyond predicting click-through rates — it lies in understanding the relationship between people and content, and in generating new connections. The team is exploring an event-sequence-driven generative recommendation paradigm, deeply integrating large language models (LLMs), multimodal understanding, reinforcement learning, and system optimization to advance recommendation systems toward general-purpose intelligent agents. We value original exploration and encourage both research thinking and engineering excellence. Every team member is empowered to propose hypotheses and validate ideas in an open environment — your code and papers may help define the next paradigm of recommendation systems. We seek individuals with a general intelligence mindset to join us in redefining the future of recommendation. Responsibilities Build and optimize cross-scenario shared Foundation Models to enable unified modeling and efficient inference. Advance the event-sequence-driven generative recommendation paradigm, integrating multimodal understanding and generative capabilities. Apply LLM technologies across retrieval, ranking, and re-ranking stages; participate in model training, inference optimization, and system co-design. Explore the integration of LLMs / VLMs with recommendation systems to develop adaptive and evolving intelligent recommenders. Research end-to-end generative recommendation and system optimization methods that balance efficiency and user experience. Qualifications Minimum Qualifications MS/PhD in Computer Science, related technical field or equivalent industrial research experience. Solid theoretical foundation in machine learning, deep learning, or information retrieval. Proficiency in Python and familiarity with mainstream deep learning frameworks (e.g., PyTorch). Strong passion for intelligent recommendation systems and a self-driven research mindset. Preferred Qualifications Experience in large-scale recommendation system development or large-model training, with notable technical achievements in a sub-area. Research experience or publications in LLMs, multimodal learning, reinforcement learning, or generative recommendation. Familiarity with pre-training and post-training processes for large language models (LLMs) or Foundation Models. Legal Notice For Los Angeles County (unincorporated) Candidates: Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment: Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues; Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; Exercising sound judgment. Accommodation TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at #J-18808-Ljbffr
- ...Ellis Technologies, Inc. is seeking a Research Scientist to advance TikTok's E-Commerce Recommendation Foundation. This role involves building and optimizing models for intelligence and generative capabilities. The ideal candidate holds an MS or PhD in Computer Science...TiktokFoundation
$148.2k - $300.96k
...Machine Learning Engineer, Recommendation, Alliance E-Commerce Location: Seattle Employment Type: Regular Job... ...conversion efficiency. Optimize TikTok's massive commodity relationship mining... ...industry experience with solid theoretical foundation of machine learning. Familiar with...TiktokFoundationTemporary workLocal area$148.2k - $300.96k
...Responsibilities The Data-E-commerce team oversees... ...encompass not only utilizing recommendation and search algorithms... ...is infinite at TikTok. Work in a team to conduct cutting‑edge research in machine learning algorithms... ...skills. Strong foundation in machine learning and...TiktokFoundationTemporary workLocal area$124.72k - $243.2k
...Machine Learning Engineer Graduate (Data-Search-Recommendation TikTok.US - Seattle) - 2026 Start (BS/MS) Location: Seattle Employment Type:... ...technical discipline. Proficient coding skills and strong foundation in algorithms and data structures. Effective communication...TiktokFoundationTemporary workLocal area$42.75 per hour
...Software Engineer Intern (Recommendation Infrastructure) - 2026 Fall (BS/MS) Location: Seattle... ...the fast iteration and incubation of TikTok's recommendation products. We are looking... ...‑world scenarios while laying a strong foundation for personal and professional growth....TiktokFoundationHourly payFull timeWork experience placementInternshipLocal areaFlexible hours$148.2k - $300.96k
...Responsibilities The e-commerce alliance team aims to serve merchants... ...shopping experience for TikTok users, create efficient... ...skills, with a solid programming foundation and good programming style 2... ...in search engines, recommendation systems, and computational advertising...TiktokFoundationTemporary workLocal area$148.2k - $300.96k
...Responsibilitie About the Team The TikTok E-commerce Recommendation and Marketing Algorithm team is... ...we develop logistics and operations research algorithms to enhance supply chain efficiency... ...eg. Tensorflow/Pytorch). - Strong foundation in algorithms and data structures,...TiktokFoundationTemporary workLocal area$115.52k - $209.38k
...The FBT Seller Growth team is TikTok Shop's front-line growth... ...data-backed pricing strategy recommendations to influence Rate Card design... ...; 3+ years of experience in e-commerce logistics, supply chain, or merchant operations. Solid foundation in e-commerce logistics, including...TiktokFoundationTemporary workLocal area$42.75 per hour
...Responsibilities Team Introduction: The Recommendation Infrastructure Team is responsible for... ...the fast iteration and incubation of TikTok's recommendation products. We are... ...-world scenarios while laying a strong foundation for personal and professional growth. This...TiktokFoundationHourly payFull timeWork experience placementSummer workInternshipLocal areaFlexible hours$148.2k - $300.96k
...Learning Engineer - Global E-commerce (ETA, Pricing &... ...edge AI, search, and recommendation systems that connect... ...Mathematics, Operations Research, or a related highly... ...field. - Solid foundation in data structures and... ...judgment. About TikTok TikTok is the leading...TiktokFoundationTemporary workLocal area$148.2k - $300.96k
...Applied Scientist, Search, E-Commerce Alliance Location: Seattle Employment Type: Regular Job Code: A... ...algorithms to improve the search and recommendation systems. Define the scope and design... ...Exercising sound judgment. Accommodation TikTok is committed to providing reasonable...TiktokTemporary workLocal area$202.16k - $368.22k
...Responsibilities E-commerce is a new and fast growing business... ...sellers and quality products on TikTok Shop, through E-commerce... ...short videos, and commodity recommendation. We are a group of applied machine... ...learning engineers and data scientists that focus on E-commerce...TiktokTemporary workWork experience placementLocal area$52.25 per hour
...functional partners across the e-commerce organization (business,... ...internship in 2026. Internships at TikTok aim to offer students... ...scenarios while laying a strong foundation for personal and professional... ..., product marketing, design, research and other product teams to ensure...TiktokFoundationHourly paySummer workInternshipLocal area$42.75 per hour
...As a data engineer in the Data Platform E-Commerce team, you will have the opportunity to build... ...will be invited to participate in TikTok's technical online assessment in HackerRank... ...-world scenarios while laying a strong foundation for personal and professional growth. Candidates...TiktokFoundationHourly paySummer workInternshipLocal area$148.2k - $300.96k
...of risks/violations issues in E-commerce scenarios. - Build an E-... ...reinforcement learning and operational research algorithms in intelligent... ...Python, Go, or C++ - Solid foundation in data structures/algorithms... ...a dozen products, including TikTok, Lemon8, CapCut and Pico as well...TiktokFoundationTemporary workLocal areaOverseas$42.75 per hour
...individuals to join us for an internship in 2026. Internships at TikTok aim to offer students industry exposure and hands‑on experience... ...your knowledge in real‑world scenarios while laying a strong foundation for personal and professional growth. It runs for 12 weeks. Candidates...TiktokFoundationHourly paySummer workInternshipLocal area$202.16k - $368.22k
...Responsibilities About The e-commerce industry has seen tremendous... ...users globally, we believe TikTok is an ideal platform to... ...reinforcement learning and operational research algorithms in intelligent... ...applications back into foundational model iteration. -Drive performance...TiktokFoundationTemporary workLocal areaOverseas- ...and go-to-market planning - Performance media (Meta, Google, TikTok, and emerging channels) - Account management and client success... ...U.S. and beyond. Our Values Our core values are the foundation of our culture and the driving force behind our innovative approach...TiktokFoundation
- ...Expedia, Inc. is seeking a Senior Machine Learning Scientist for their Personalization team in Seattle. This role involves designing... ...learning, a Bachelor's degree in Computer Science, and a strong foundation in statistical analysis and data-driven decision making. Benefits...Foundation
$129.96k
...Job ID: A70509 Responsibilities Our Recommendation Architecture Team is responsible for building... ...to provide the best experience for our TikTok users. Responsibilities - What You'll... ...Trump on September 25, 2025. Our foundation is a comprehensive data privacy and cybersecurity...TiktokFoundationTemporary workLocal areaShift work$3,000 per month
...Amazon marketplaces Supporting emerging growth channels such as TikTok Shops The Role As a Sales Account Executive at AMZ Advisers,... ...global businesses Culture Fit At AMZ Advisers, culture is the foundation of our team. We look for people who: Believe in themselves and...TiktokFoundationRemote workWorldwide- ...Research Scientist, LLM Evaluation & Post-Training page is loaded## Research Scientist, LLM... ...failure patterns; generate actionable recommendations for model improvement and evaluation... ...science, with substantial work in LLMs or foundation models (graduate research counts).* *...FoundationFull timeRemote work
$28 per hour
...Asia and the Middle East, as well as the e-commerce sites and Job Description... ...expertise through floorset updates, styling recommendations and product knowledge. Assistant... ...managers will build upon their initial foundation and have the opportunity to grow into...FoundationHourly paySummer workWeekend work$71k - $90k
...our passion as advocates with research, cultural insights, strategy... ...We work alongside leading foundations, advocacy organizations, philanthropists... ...with platforms like TikTok or Snapchat is a plus. While... ...tactics, and platform recommendations Advise internal creative teams...TiktokFoundationRemote workFlexible hoursShift work2 days per week$4,800 - $5,000 per month
...manage paid media for growth-stage DTC and e-commerce brands spending $100K to $1M+ monthly across Meta, Google, TikTok, and more. We're remote-first with roots... ...without reminders You bring observations and recommendations, not just status updates You communicate...TiktokFull timeContract workFor contractorsLocal areaRemote workFlexible hoursShift work$148.2k - $300.96k
...About the Team The Data-Search-TikTok-Local Services team enhances... ...to refine search and recommendation systems, focusing on personalized... ...-solving skills. Strong foundation in machine learning and deep... ...with local life services and e-commerce businesses. Job Information...TiktokFoundationTemporary workLocal area$148.2k - $300.96k
...Machine Learning Engineer Graduate (TikTok-Data-Search-Local Service) - 2026 Start (... ...machine learning techniques in search and recommendation scenarios with billions of users to... ...analytical and problem‑solving skills. Strong foundation in machine learning and deep learning,...TiktokFoundationTemporary workLocal area- ...a Software Engineer Intern for Fall 2026. This 12-week program, starting in August/September, aims to build efficient recommendation systems for TikTok. Interns will gain hands-on experience and industry exposure while working closely with mentors. The ideal candidate should...TiktokHourly payInternship
$42.75 per hour
...Code: A162714A Responsibilities The TikTok Data Ecosystem Team has the vital role... ...solution for offline data in TikTok's recommendation system, which caters to more than a... ...-world scenarios while laying a strong foundation for personal and professional growth. It...TiktokFoundationHourly paySummer workInternshipLocal area- ...internship that provides business students with hands-on experience in e-commerce strategies. Interns will support project management tasks,... ...Administration or related fields, have excellent communication skills, and a keen interest in e-commerce. #J-18808-Ljbffr TikTokTiktokInternshipSummer internship
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Research Scientist - TikTok E-Commerce Recommendation Foundation. Be the first to apply!
- safety scientist Seattle, WA
- image scientist Seattle, WA
- entry level research scientist Seattle, WA
- regulatory scientist Seattle, WA
- water quality scientist Seattle, WA
- senior principal scientist Seattle, WA
- pharmaceutical scientist Seattle, WA
- downstream processing scientist Seattle, WA
- remote scientist Seattle, WA
- genomics scientist Seattle, WA


