Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Machine Learning Engineer, Next-Generation Recommendation Systems

$127.4k - $191.2k

Unity Technologies

The opportunityUnity's Vector AI team builds the machine learning systems that decide which ads reach which players — across billions of monthly users on the world's leading game engine. Recommendation and ranking systems are the core of this work: predicting user value, optimizing bids, and delivering outcomes for advertisers at massive scale.We are building the next generation of these systems. The frontier has shifted — large language models, reinforcement learning from human feedback, and agentic AI are reshaping what recommendation systems can do. We are looking for PhD graduates who have worked at that frontier and want to bring those ideas into production systems that matter.What you'll be doingDesign, build, and evaluate next-generation ranking and recommendation models that incorporate LLMs, RLHF, and preference learning to improve ad relevance and user experience.Develop user understanding systems — conversion prediction, behavioral modeling, and value estimation — that operate across billions of impressions.Apply reinforcement learning and optimization techniques to bidding strategy, auction dynamics, and real-time ad delivery.Design and run rigorous experiments using causal inference, A/B testing, and offline evaluation frameworks to measure and improve model quality.Partner with engineering to bring research ideas into production, working across the full pipeline from training data to deployed model.Communicate findings clearly to technical and non-technical stakeholders across engineering, product, and business teams.What we're looking forPhD in Computer Science, Machine Learning, Statistics, or a related field (graduating 2026 or recent graduate).Strong research foundations in one or more of: recommendation systems, reinforcement learning, LLM post-training or alignment, human-AI collaboration, probabilistic modeling, or optimization.Experience working with large-scale data and ML systems, whether through research or industry internships.Fluency in Python; familiarity with ML frameworks such as PyTorch or TensorFlow.A track record of rigorous, high-quality research — publications at top venues (NeurIPS, ICML, ICLR, KDD, RecSys, ACL, or similar) are a strong signal.Strong written and verbal communication skills — able to make complex ideas accessible across technical and non-technical audiences.You might also haveIndustry experience in ads, recommendation, or user understanding systems (internship experience counts).Hands-on experience with production ML pipelines — training at scale, feature engineering, or experimentation infrastructure.Experience applying LLMs or generative models to ranking, retrieval, or structured prediction problems.Familiarity with agentic AI approaches — multi-step reasoning, tool use, or human-AI collaboration frameworks.Exposure to causal inference, uplift modeling, or A/B testing at scale.Genuine curiosity about applied research and the drive to see ideas through to impact.Additional informationRelocation support is not available for this position$127,400.00 - $191,200.00This range reflects the anticipated base salary for this position. Beyond base salary, this role may be eligible for equity awards and participation in our company incentive plans (such as annual discretionary bonuses or sales commissions). The final offer amount will depend on several factors, including geographic location and the candidate’s relevant experience, professional background, and skill set.BenefitsAt Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching programLife at UnityUnity [NYSE: U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown in Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D — closing the gap between ideas and reality. For more information, please visit .Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.This posting is intended to fill an existing vacancy, and we are committed to providing applicants with updates throughout the hiring process in accordance with applicable law.Headhunters and recruitment agencies may not submit resumes/CVs through this website or directly to managers. Unity does not accept unsolicited headhunter and agency resumes. Unity will not pay fees to any third-party agency or company that does not have a signed agreement with Unity.Your privacy is important to us. Please take a moment to review ourProspect andApplicant Privacy Policies. Should you have any concerns about your privacy, please contact us at View email address on click.appcast.io: New York, NY, USA; Bellevue, WA, USA; Mountain View, CA, USAType: Full time

Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Machine Learning Engineer, Next-Generation Recommendation Systems in Bellevue, WA vacancy
  • $112.7k - $169.1k

     ...Unity's Vector AI team builds the machine learning systems that decide which ads reach which...  ...users on the world's leading game engine. Recommendation and ranking systems are the core of...  ...massive scale. We are building the next generation of these systems. The frontier has... 
    Suggested
    Internship
    Work at office
    Worldwide
    Relocation package
    Shift work

    Unity

    Bellevue, WA
    4 days ago
  • $121.6k - $243.2k

    Machine Learning Engineer Graduate (E-Commerce Recommendation Live) - 2027 Start Location: Seattle Employment...  .... By combining generative recommendation, large recommendation...  .... Advance next-generation recommendation...  ...areas: recommendation systems, search, advertising, NLP... 
    Suggested
    Temporary work
    Local area

    Tik Tok

    Seattle, WA
    4 days ago
  • $229k - $343k

     ...live in the moment, learn about the world, and...  ...digital services. Snap’s Generative ML Platform team...  ...platforms, and agentic systems that empower creators...  ...We’re looking for a Machine Learning Engineer to join Snap Inc! What...  ...us with SPECS, our next-generation augmented... 
    Suggested
    Full time
    Live in
    Work at office
    Local area
    Worldwide

    Snap

    Bellevue, WA
    2 days ago
  • $42.75 per hour

     ...Responsibilities About the Team Recommendation algorithm team plays a central role...  ...platform growth. The team is made up of machine learning researchers and engineers, who support and innovate on...  ...of industry-leading recommendation systems that elevate user experience,... 
    Suggested
    Hourly pay
    Internship
    Local area

    TikTok

    Seattle, WA
    2 days ago
  •  ...commerce short videos, and commodity recommendation. We are a group of applied machine learning engineers and data scientists that focus...  ...recommendation algorithms and systems, including commodity...  ...predictive models for candidate generation and ranking(eg. Click Through... 
    Suggested
    Temporary work
    Work experience placement

    TikTok

    Seattle, WA
    3 days ago
  •  ...streaming and E-commerce short videos. The recommendation system plays an extremely important role...  ....We are a group of applied machine learning engineers and research scientists that focus...  ...on predictive models for candidate generation and ranking(eg. Click Through Rate... 
    Temporary work

    TikTok

    Seattle, WA
    3 days ago
  • $161.14k - $200k

    Machine Learning Engineer Bellevue, WA Join Us In Building The Future Of Finance Our mission...  ...will be inherited by younger generations in the next two decades. The largest transfer...  ...focusing on advanced ranking and recommendation systems, including expertise in... 
    Work at office
    Remote work
    Flexible hours
    Shift work
    3 days per week

    Robinhood

    Bellevue, WA
    4 days ago
  • $229k - $343k

    Staff Machine Learning Engineer Snap Inc is a technology company. We believe the camera...  ...Engineer to lead the development of next-generation Search ranking systems. In this role, you will design,...  ...with advances in search, recommendation systems, ads ranking, generative... 
    Work experience placement
    Live in
    Work at office
    Local area

    Snapchat

    Bellevue, WA
    4 days ago
  • $175k - $215k

     ...Perception team builds the system which learns the spatial-temporal representation...  ...set of sensors, enabling engineers like you to (1) develop...  ...segmentation, and obstacle generation. Projects on our team...  ...Engineer with robotics and machine learning experience, who will... 
    Full time
    Remote work

    Waymo

    Kirkland, WA
    1 day ago
  • $100k - $150k

     ...Machine Learning Research Engineer - Remote    Bright Vision Technologies is a...  ...advanced machine learning systems that solve high-impact business...  ...language, vision, recommendation, and structured data domains...  ...with retrieval-augmented generation, agentic systems, or... 
    Full time
    H1b
    Local area
    Immediate start
    Remote work
    Visa sponsorship

    Bright Vision Technologies

    Kirkland, WA
    more than 2 months ago
  • $131.5k - $243.3k

    A leading technology company is seeking a Machine Learning Systems Engineer to build the software stack for large machine learning models on Apple Silicon. The ideal candidate will have practical experience in evaluating ML models and optimizing system-level code, paired... 

    Apple Inc.

    Seattle, WA
    4 days ago
  • $148.7k - $201.2k

     ...build the backbone of Generative AI cloud at AWS? Do you...  ...you. The AWS Hardware Engineering team creates server...  ...scale and curious how systems and software decisions...  ...company for delivering the next-generation AWS...  ...it’s in our nature to learn and be curious. Our employee... 
    Internship
    Local area
    Flexible hours

    Amazon

    Seattle, WA
    2 days ago
  • $185k - $235k

     ...data preparation, feature engineering, training, evaluation, deployment...  ..., labeling, and validation systems and identify gaps, bias,...  ...in Computer Science, Machine Learning, Statistics, or a related quantitative...  ...experience in advertising, recommendation, search, growth, targeting,... 
    Full time

    NewsBreak

    Bellevue, WA
    3 days ago
  • $185k - $235k

     ...personalized local news and information powered by advanced AI, recommendation systems, and adtech. Recognized by  Fast Company as #32 on...  ...the role We are looking for an experienced Senior Machine Learning Engineer to design and build the data and ML systems that... 
    Full time
    Local area
    Work from home

    NewsBreak

    Bellevue, WA
    3 days ago
  • $107k - $139k

     ...The Data & Analytics team builds and manages data systems, analyzes information to generate insights, and develops machine learning models to support automated decisioning. As a Data Scientist and Machine Learning Engineer, you will work across (and connect) the... 
    Full time
    Local area
    Relocation

    Identity Digital

    Bellevue, WA
    2 days ago
  •  ...develop and apply cutting edge machine learning technologies in real-time large-scale systems, which serve billions of...  ...forefront of developing the search recommendation algorithm for TikTok's rapidly...  ...technology, we're shaping a pioneering engine within the industry. Our... 
    Work experience placement
    Worldwide

    TikTok

    Seattle, WA
    3 days ago
  • $207.48k - $368.22k

     ...: Data AML is ByteDance's Machine Learning mid-platform, providing training and inference systems for recommendation, advertising, CV, speech,...  ...customers through Volcano Engine. In addition, AML also conducts...  ...system architecture for next-generation ultra-large and ultra-deep... 
    Temporary work
    Local area
    Flexible hours

    ByteDance

    Seattle, WA
    2 days ago
  • $155k - $175k

    Machine Learning Engineer - LLMs & Generative AITruveta is the world’s first health provider led data platform with a vision of Saving Lives with...  ...reinforcement learning techniques to build the next generation of AI systems for trustworthy healthcare. This role offers a... 
    For contractors
    Visa sponsorship
    Work visa
    Flexible hours

    Truveta

    Seattle, WA
    1 day ago
  • $153.9k - $300.96k

     ...Algorithm team is the core engine driving the ultimate...  ...AI, search, and recommendation systems that connect...  ...boundaries of applied machine learning by leveraging cutting...  ...Responsibilities - Next-Gen ETA Prediction:...  ...allocation. - LLM / Generative AI: LLM training pipelines... 
    Temporary work
    Local area

    Tik Tok

    Seattle, WA
    4 days ago
  •  ...algorithmic and corresponding engineering work in the e-commerce...  ...encompass not only utilizing recommendation and search algorithms to help...  ...cutting-edge research in machine learning algorithms, such as retrieval...  ...algorithms and systems, including commodity recommendations... 
    Temporary work

    TikTok

    Seattle, WA
    3 days ago
  • $241.68k

     ...challenge is an opportunity to learn and innovate as one team. We're...  ...develop, and optimize the advanced recommendation systems that power the global e-commerce...  ...driving initiatives from a ML engineering viewpoint.Mentor junior Machine Learning Engineers and interns.QualificationsMust... 
    Full time
    Work experience placement

    TikTok

    Seattle, WA
    2 days ago
  • $142k - $194k

     ...experience in data science, machine learning, software...  ...Learning, Computer Engineering, Mathematics, Physics...  ...tools, processes, or systems. We value demonstrated...  ...experience applying generative AI techniques and...  ...assessments, and hiring recommendations. Technologies:... 
    Full time

    Oracle

    Seattle, WA
    4 days ago
  •  ...group at Zoox is looking for machine learning engineers to bring the latest...  ...Our ML group is working on generating rich and diverse 3D environments...  ...Experience in distributed systems and cloud computing platforms...  ..., Zoox aims to provide the next generation of mobility-as-a... 
    Full time
    Temporary work
    Relocation package

    Zoox

    Seattle, WA
    1 day ago
  • $200.4k - $260.5k

    Senior Machine Learning Engineer, Data Infrastructure Unity Vector builds a data platform that powers...  ...-making across the company. Our systems operate at scale across batch and streaming...  ...large-scale model training, feature generation, and experimentation workflows that... 
    Work at office
    Worldwide
    Relocation package

    Unity

    Bellevue, WA
    4 days ago
  • $160k - $250k

     ...solutions to understand, search, and generate content, and is trusted by hundreds of...  ...joining the future of AI! Senior Machine Learning Engineer In order to execute our vision,...  ...contribute to the product and core backend systems by suggesting and executing... 
    Full time

    Hive

    Seattle, WA
    1 day ago
  • $144.7k - $261.3k

     ...autonomous vehicle development. We engineer high-performance tools that...  ...high-impact team of engineers and machine learning scientists leveraging advanced AI...  ..., reliability, and scalability of next-generation autonomous systems. About The Role As a Senior Engineer... 
    Local area
    Remote work
    Work from home
    Flexible hours

    General Motors

    Seattle, WA
    2 days ago
  • $142.3k - $263.3k

    Machine Learning Research Engineer, App Store Search The Apple Services Engineering (ASE...  ...retrieval, and generative AI, and apply new techniques to improve our systems. Build and improve ML models...  ...Familiarity with search, recommendation systems, conversational engines... 
    Worldwide
    Relocation

    Apple

    Seattle, WA
    4 days ago
  • Lead Machine Learning Engineer Disney Entertainment and ESPN Product & Technology...  ...algorithms across the recommendation stack. This includes our core...  ...and post-ranking systems. There is more than one way...  ...blend of both: someone who generates ideas of their own, helps... 

    The Walt Disney Studios

    Seattle, WA
    4 days ago
  • $200k - $250k

     ...are The real world is the next frontier, and at Metropolis, we...  ...is seeking a Senior Manager of Machine Learning Engineering within the Advanced Technologies...  ...and execution of our foundational systems that power our next generation of AI. You will oversee 4 critical... 
    Temporary work
    Work at office
    Local area

    Metropolis Corp

    Seattle, WA
    15 hours ago
  • A leading healthcare technology company in Seattle is seeking a Machine Learning Engineer to develop AI systems for healthcare. You will lead projects focused on generative models and collaborate across teams to improve healthcare delivery. Ideal candidates should have... 
    Flexible hours

    Truveta

    Seattle, WA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Machine Learning Engineer, Next-Generation Recommendation Systems. Be the first to apply!