Be at the heart of actionFly remote-controlled drones into enemy territory to gather vital information.

Apply Now

Senior Machine Learning Scientist (Recommender Systems) - Viator

Trip Advisor
London
7 months ago
Applications closed

Related Jobs

View all jobs

Senior Data Scientist - Computer Vision

Senior Data Scientist - Consumer Behaviour - exciting ‘scale up’ proposition

Senior Computer Vision Engineer

Lead Data Scientist

Artificial Intelligence

Senior Machine Learning Engineer

About Viator

Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. With 300,000+ travel experiences to explore—everything from simple tours to extreme adventures—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.Perks of Working at Viator

Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary, annual bonus, and equity."Work your way" with flexibility to suit your lifestyle. Viator takes a remote-friendly approach to collaboration across a worldwide team, with the option to join on-site as often as you'd like.Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work.Donation matching. Give back? Give more! We match qualifying charitable donations annually.Tuition assistance. 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 is employee development, so we provide discounts and more.Employee assistance program. We're here for you with resources and programs to help you through life's challenges.Health benefits. We offer great coverage and competitive premiums.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 – or every time. We'll provide a safe environment in which to make mistakes, iterate, improve, and grow.Our workplace is for everyone, as is our people powered platform. At Tripadvisor, we want you to bring your unique identities, abilities, and experiences, so we can collectively revolutionize travel and together find the good out there.

Do not pass up this chance, apply quickly if your experience and skills match what is in the following description.You will work on:The Recommender Systems group is tasked with delivering highly relevant, personalised product ranking and recommendations to users across the entire Viator product. Further improving our product rankings with state-of-the-art approaches has high-level executive support and is a crucial part of the company's 3-year strategy.Get to work on a variety of Recsys modalities using a modern tech stack with a freedom to explore modelling approaches to find the optimal solution.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 various 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.In-depth knowledge of AI/ML/DL, Statistics, and related open-source libraries.Previous experience of working on industrial grade recommendation systems and ideally familiarity with offline evaluation techniques.Awareness of current ML techniques, keen on self-improvement and striving to solve real-world data challenges.Strong skills in SQL and at least one programming language.To be comfortable in code reviews, discussing architecture, and collaborating with a multidisciplinary team for regular model deployments.Experience in deploying online solutions and analysing real-time results through A/B testing.To be passionate about mentoring junior members of the team, and have a 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, and proactive sharing of findings. Actively involved in business networking and 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 (any or all) User Modelling, Representation Learning, Large Language Models (LLM).Prior experience in e-commerce or at an Online Travel Agency.

Job Location:

Remote or HybridThis role is a remote position in the UK, Poland, or Portugal. Occasional travel to company offices as necessary.

If you need a reasonable accommodation or support during the application or the recruiting process due to a medical condition or disability, please reach out to your individual recruiter or send an email to let us know the nature of your request. Please include the job requisition number in your message.

#Viator#LI-Remote#LI-JP

#J-18808-Ljbffr

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Why the UK Could Be the World’s Next AI Jobs Hub

Artificial Intelligence (AI) has rapidly moved from research labs into boardrooms, classrooms, hospitals, and homes. It is already reshaping economies and transforming industries at a scale comparable to the industrial revolution or the rise of the internet. Around the world, countries are competing fiercely to lead in AI innovation and reap its economic, social, and strategic benefits. The United Kingdom is uniquely positioned in this race. With a rich heritage in computing, world-class universities, forward-thinking government policy, and a growing ecosystem of startups and enterprises, the UK has many of the elements needed to become the world’s next AI hub. Yet competition is intense, particularly from the United States and China. Success will depend on how effectively the UK can scale its strengths, close its gaps, and seize opportunities in the years ahead. This article explores why the UK could be the world’s next global hub for artificial intelligence, what challenges it must overcome, and what this means for businesses, researchers, and job seekers.

The Best Free Tools & Platforms to Practise AI Skills in 2025/26

Artificial Intelligence (AI) is one of the fastest-growing career fields in the UK and worldwide. Whether you are a student exploring AI for the first time, a graduate looking to build your portfolio, or an experienced professional upskilling for career growth, having access to free tools and platforms to practise AI skills can make a huge difference. In this comprehensive guide, we’ll explore the best free resources available in 2025, covering AI coding platforms, datasets, cloud tools, no-code AI platforms, online communities, and learning hubs. These tools allow you to practise everything from machine learning models and natural language processing (NLP) to computer vision, reinforcement learning, and large language model (LLM) fine-tuning—without needing a huge budget. By the end of this article, you’ll have a clear roadmap of where to start practising your AI skills for free, how to build real-world projects, and which platforms can help you land your next AI job.

Top 10 Skills in Artificial Intelligence According to LinkedIn & Indeed Job Postings

Artificial intelligence is no longer a niche field reserved for research labs or tech giants—it has become a cornerstone of business strategy across the UK. From finance and healthcare to manufacturing and retail, employers are rapidly expanding their AI teams and competing for talent. But here’s the challenge: AI is evolving so quickly that the skills in demand today may look different from those of just a few years ago. Whether you’re a graduate looking to enter the industry, a mid-career professional pivoting into AI, or an experienced engineer wanting to stay ahead, it’s essential to know what employers are actually asking for in their job ads. That’s where platforms like LinkedIn and Indeed provide valuable insight. By analysing thousands of job postings across the UK, they reveal the most frequently requested skills and emerging trends. This article distils those findings into the Top 10 AI skills employers are prioritising in 2025—and shows you how to present them effectively on your CV, in interviews, and in your portfolio.