Senior Machine Learning Scientist (Generative AI) - ViatorLondon, England

Senior Machine Learning Scientist (Generative AI) -Viator London, England About Viator Viator, a Tripadvisor company,is the leading marketplace for travel experiences. We believe thatmaking memories is what travel is all about. And with 300,000+travel experiences to explore—everything from simple tours toextreme adventures (and all the niche, interesting stuff inbetween)—making memories that will last a lifetime has never beeneasier. With industry-leading flexibility and last-minuteavailability, it's never too late to make any day extraordinary.Viator. One app, 300,000+ travel experiences you’ll remember. Perksof Working at Viator - Competitive compensation packages (routinelybenchmarked against the latest industry data), including basesalary and annual bonus. - “Work your way” with flexibility to suityour lifestyle. Viator takes a remote-friendly approach tocollaboration across a worldwide team, with the option to joinon-site as often as you’d like. - Flexible schedule. Work-lifebalance is ingrained in our culture by design. Trust andaccountability make it work. - Donation matching. Give back? Givemore! We match qualifying charitable donations annually. - Tuitionassistance. Want to level up your career? We love to hear it!Receive annual support for qualified programs. - Lifestyle benefit.An annual benefit to spend on yourself. Use it on travel, wellness,or whatever suits you. - Travel perks. We believe that travel isemployee development, so we provide discounts and more. - Employeeassistance program. We’re here for you with resources and programsto help you through life’s challenges. - Health benefits. We offergreat coverage and competitive premiums. Our Values - We aspire tolead. Tap into your talent, ambition, and knowledge to bring us –and you – to new heights. - We’re relentlessly curious. We pushbeyond the usual, the known, the “that’s just how it’s done.” -We’re better together. We learn from, accept, respect, support, andvalue one another– and are creating something remarkable in theprocess. - We serve our customers, always. We listen, question,respond, and strive for wow moments. - We strive for better, notperfect. We won’t get it right the first time – or every time.We’ll provide a safe environment in which to make mistakes,iterate, improve, and grow. - Our workplace is for everyone, as isour people powered platform. At Tripadvisor, we want you to bringyour unique identities, abilities, and experiences, so we cancollectively revolutionize travel and together find the good outthere. You will work on: - Research, prototype, and productionizegenerative AI models. - Develop scalable GenAI pipelines thatgenerate high-quality content, from product descriptions, reviews,titles, and other product content. - Design and evaluate prompttuning strategies and RAG systems to ensure factual and engagingoutputs. - Fine-tune foundation models and develop domain-specificadapters using techniques like LoRA, PEFT, and instruction tuning.- Define best practices for model monitoring, including outputquality, hallucination detection, and user feedback loops. -Understanding use cases for Agentic AI communicating your findingswith the wider ML team and product. - Utilize RLHF methodologies tobuild feedback mechanisms that directly shape the behavior andquality of our generative AI outputs. - Collaboratecross-functionally with product, design, and engineering tointegrate models into user-facing applications. - Stay up to datewith the latest in GenAI research and help shape internal bestpractices. - Design, code, experiment and implement models andalgorithms to enhance customer satisfaction, increase suppliervalue, optimize business results, and ensure infrastructureefficiency. - Collaborate with product managers and variousbusiness stakeholders to ensure top-quality outcomes to meetinternal objectives. - Investigate and adopt innovative conceptsthat offer tangible benefits. To be successful in the role, you'llneed: - 5+ years of hands-on data science experience with at least2 years of experience with LLM - Awareness of current LLMtechniques, prompt tuning, evaluations and model monitoring. -In-depth knowledge of AI/ML/DL, Statistics, and related open-sourcelibraries. - Strong skills in SQL and at least one programminglanguage. - To be comfortable in code reviews, discussingarchitecture, and collaborating with a multidisciplinary team forregular model deployments. - Experience in deploying onlinesolutions and analysing real-time results through A/B testing. - Tobe passionate about mentoring junior members of the team, and havea strong desire to help us perform to the best of our ability. -Leadership qualities, autonomy, and team collaboration skills. -Clear communication skills, awareness of the audience, andproactive sharing of findings. Actively involved in businessnetworking and able to communicate complex ideas across thebusiness simply and effectively. Desired qualifications: - Master'sor PhD in Computer Science, Operations Research, Statistics, orrelated quantitative disciplines. - Knowledge in (any or all) UserModelling, Representation Learning, RecSys, Large Language Models(LLM) - Prior experience in e-commerce or at an Online TravelAgency. Job Location: This role is a remote position or hybrid inthe UK, Poland or Portugal. Occasional travel to company offices asnecessary. #J-18808-Ljbffr