Overview
Senior Machine Learning Scientist (Generative AI) - Viator. Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore—everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)—making memories that will last a lifetime has never been easier. With industry-leading flexibility and last-minute availability, it\s never too late to make any day extraordinary. Viator. One app, 300,000+ travel experiences you’ll remember.
This role is remote or hybrid (UK, Poland, or Portugal) with occasional travel to company offices as necessary.
You Will Work On
* Research, prototype, and productionize generative AI models.
* Develop scalable GenAI pipelines that generate high-quality content, from product descriptions, reviews, titles, and other product content.
* Design and evaluate prompt tuning strategies and RAG systems to ensure factual and engaging outputs.
* Fine-tune foundation models and develop domain-specific adapters using techniques like LoRA, PEFT, and instruction tuning.
* Define best practices for model monitoring, including output quality, hallucination detection, and user feedback loops.
* Understand use cases for Agentic AI and communicate findings with the wider ML team and product.
* Utilize RLHF methodologies to build feedback mechanisms that shape the behavior and quality of our generative AI outputs.
* Collaborate cross-functionally with product, design, and engineering to integrate models into user-facing applications.
* Stay up to date with the latest in GenAI research and help shape internal best practices.
* Design, code, experiment, and implement models and algorithms to enhance customer satisfaction, increase supplier value, optimize business results, and ensure infrastructure efficiency.
* Collaborate with product managers and business stakeholders to ensure top-quality outcomes to meet internal objectives.
* Investigate and adopt innovative concepts that offer tangible benefits.
To Be Successful In The Role, You\ll Need
* 5+ years of hands-on data science experience with at least 2 years of experience with LLMs.
* Awareness of current LLM techniques, prompt tuning, evaluations, and model monitoring.
* In-depth knowledge of AI/ML/DL, Statistics, and related open-source libraries.
* Strong skills in SQL and at least one programming language.
* Comfort with code reviews, discussing architecture, and collaborating with a multidisciplinary team for regular model deployments.
* Experience deploying online solutions and analyzing real-time results through A/B testing.
* Passion for mentoring junior team members and helping the team perform at its best.
* Leadership qualities, autonomy, and strong collaboration skills.
* Clear communication, audience awareness, and proactive sharing of findings; able to communicate complex ideas across the business simply and effectively.
Desired Qualifications
* Master\s or PhD in Computer Science, Operations Research, Statistics, or related quantitative disciplines.
* Knowledge in User Modelling, Representation Learning, Recsys, Large Language Models (LLMs).
* Prior experience in e-commerce or an Online Travel Agency.
Job Location
This role is remote or hybrid in the UK, Poland or Portugal. Occasional travel to company offices as necessary.
Accessibility
If you need a reasonable accommodation or support during the application or recruiting process due to a medical condition or disability, please reach out to your recruiter or email AccessibleRecruiting@Tripadvisor.com with the job requisition number.
Our Values
* We aspire to lead. Tap into your talent, ambition, and knowledge to bring us – and you – to new heights.
* We\re relentlessly curious. We push beyond the usual, the known, the “that\s just how it\s done.”
* We\re better together. We learn from, accept, respect, support, and value one another and are creating something remarkable in the process.
* We serve our customers, always. We listen, question, respond, and strive for wow moments.
* We strive for better, not perfect. We won\t get it right the first time; we\ll provide a safe environment to make mistakes, iterate, improve, and grow.
* Our workplace is for everyone, as is our people-powered platform. Bring your unique identities, abilities, and experiences so we can revolutionize travel together.
Referrals increase your chances of interviewing at Viator by 2x.
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