We believe that we are better together, and at Tripadvisor we welcome you for who you are. 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.

The Tripadvisor Machine Learning Team is looking for an exceptional individual to lead a team working on designing and building next-generation AI systems to understand our travelers and products and improve customer experience.  Our work will significantly improve our ability to offer travelers the broadest, most relevant travel products.

You will work on a team with other talented machine learning engineers focusing on content-related AI projects. Our initiatives aim to enhance user-generated content accessibility for travelers through AI Review Summaries, Collections, Auto-Tagging & Knowledge Graphs, topic classification, machine translation, and more. This foundational work improves travelers’ exploration of our content and plan their dream vacation! You'll work with cutting-edge technologies including Natural Language Understanding, Large Language Models (LLMs), Knowledge Graphs, and GenAI.

Tripadvisor is the web's leading travel information site.  At Tripadvisor, the Machine Learning Team creates systems that influence the travel decisions of millions of people per day. It applies cutting-edge machine learning techniques to a wide variety of areas, including recommenders, vision, information retrieval, and natural language processing.  To ensure continued success, Tripadvisor promotes a culture of personal development, including social activities, journal clubs, memberships in online learning resources, and participation in industry conferences.  Have a great time while shaping the future of travel!

LOCATION: This position is available for remote work throughout Portugal. Applicants must have the right to work in Portugal, and if residing abroad, must be willing to relocate to Portugal.

What You Will Do

• Collaborate with senior members of the team to design, implement, and deploy machine learning models and systems.
• Participate in all stages of the machine learning development lifecycle, from data collection and preprocessing to model evaluation and deployment.
• Work closely with cross-functional teams to understand business requirements and translate them into machine learning solutions.
• Contribute to the improvement of existing machine learning pipelines and infrastructure.
• Stay up-to-date with the latest trends and technologies in machine learning and share knowledge with the team.

Who You Are

• You are an experienced machine learning engineer with experience in developing and deploying machine learning models.
• You have a solid understanding of machine learning concepts and algorithms, with hands-on experience in at least one framework such as TensorFlow or PyTorch.
• You have strong problem-solving skills and attention to detail.
• You are eager to learn and grow in a collaborative team environment.
• You have good communication skills and can effectively communicate technical concepts to both technical and non-technical stakeholders.

Qualifications

• Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field.
• 2+ years of experience in machine learning engineering or a related field.
• Proficiency in Python and experience with machine learning libraries such as PyTorch/TensorFlow/Jax, spaCy, NLTK, Hugging Face Transformers, etc.
• Familiarity with machine learning algorithms and techniques, including deep learning, reinforcement learning, and natural language processing.
• Experience with data preprocessing, feature engineering, and model evaluation.
• Knowledge of software development best practices, version control systems, and collaborative coding workflows, CI/CD, and automated testing.
• Excellent communication and teamwork skills, with the ability to work effectively in a collaborative environment.

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 AccessibleRecruiting@Tripadvisor.com and let us know the nature of your request. Please include the job requisition number in your message.

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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.

The Viator Experiences Engineering team is distributed across Europe and is responsible for viator.com, the Viator mobile apps and all their supporting infrastructure. We run the systems that help operators build their businesses and those which enable third parties to utilise our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally.

We’re looking for a Senior Software Engineer to join our fast-growing team. You can work remotely in the UK, or hybrid from the Oxford or London Tripadvisor office.

Within Viator we have a fun and friendly environment where the key objective is getting things done. Working closely alongside product managers, our engineers are part of the full process from software design, to code, to test, to deployment and back again. Most of our engineers release code to production every few days and we have a daily release cycle.

This is a back-end oriented role. The tech stack includes Java, GraphQL, Kubernetes, SQL and NoSQL databases, and runs on AWS. You don’t need to have experience with everything listed but you do need to be hungry to learn. You will need to have experience of a statically typed, object-oriented language such as Java, C# or C++

Perks of Working at Viator

• Competitive compensation packages, including base salary, annual bonus, and equity.
• “Work your way” with flexibility to suit your lifestyle. We take a remote-friendly approach to collaboration, with the option to join on-site as often as you’d like in select locations. 
• 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; We’re relentlessly curious;... want to know more? Read up on 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.

Application process

• 30 minute call with a recruiter to learn more about the role
• 1 hour technical coding interview with someone from the Viator Engineering team
• Three one-hour interviews with members of the team, covering technical topics - including some coding - and what you would bring to Viator.

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 AccessibleRecruiting@Tripadvisor.com and let us know the nature of your request . Please include the job requisition number in your message.

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#Viator

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We believe that we are better together, and at Tripadvisor we welcome you for who you are. 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. 

Want to be part of a team working on the world’s largest travel platform?

Tripadvisor aims to make everyone a better traveler by creating products that help people around the world plan and have the perfect trip. As part of the team responsible for our Flagship apps, you get to work on products impacting many millions of monthly active visitors worldwide.

During the pandemic our engineering, product, and design teams went back to first principles and redesigned our Flagship native apps and the platforms they run on from the ground up. Our new apps are an engineer’s dream to work with: they embrace component-based server-driven UI and clean architecture; and we are among the first major tech companies to fully rewrite our iOS app using SwiftUI. Come join us and expand upon that solid foundation to empower our native engineering teams to do their best work!

Our Native Product Engineering teams are responsible for features in our Flagship iOS and Android apps that delight millions of travelers around the world. One of these teams is looking for a senior iOS engineer with experience designing, building, and maintaining iOS apps at scale. The ideal candidate would bring excellent communication skills, technical acumen, and a product-mindset.

What you’ll do:

• Deliver high-quality, scalable features to millions of travelers across many countries and languages.
• Collaborate with designers, product managers, and other engineers to iterate on new features.
• Practice, uphold, and promote high quality and reliability standards, respect clean code principles, implement unit and integration tests.
• Provide feedback on technical designs and code reviews to ensure the scalability, maintainability, and robustness of our iOS apps.
• Mentor other iOS engineers.

Skills and Experience:

• Bachelor's degree in Computer Science, a related technical field or equivalent practical experience.
• At least 6 years of experience with iOS development.
• Experience with Clean Architecture.
• Experience with large, multi-module projects.
• Experience with dependency injection.
• Solid understanding of MVVM.
• Good understanding of reactive programming.
• Experience in shipping mobile products.
• User-centric mindset.

Nice to haves:

• Experience with SwiftUI.
• Experience with server-driven UIs.
• Experience with GraphQL.

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 AccessibleRecruiting@Tripadvisor.com and let us know the nature of your request . Please include the job requisition number in your message.

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