Machine Learning Scientist • Senior

Who you are

You have a strong background in machine learning, particularly in developing recommender systems — your experience includes designing algorithms that enhance user engagement and satisfaction. You are proficient in Python and have hands-on experience with machine learning frameworks such as TensorFlow and Keras, allowing you to implement complex models effectively.

Your analytical skills are top-notch, and you are comfortable working with large datasets — you understand how to extract meaningful insights from data and apply them to improve product offerings. You have a solid understanding of SQL, enabling you to manage and query databases efficiently.

You thrive in collaborative environments and enjoy working with cross-functional teams — your ability to communicate complex technical concepts to non-technical stakeholders is a key strength. You are passionate about travel and understand the nuances of user preferences in this domain, which drives your motivation to create impactful solutions.

Desirable

Experience with cloud platforms such as AWS or GCP is a plus, as it allows you to deploy models at scale. Familiarity with A/B testing methodologies will help you validate your models and ensure they meet user needs effectively.

What you'll do

As a Senior Machine Learning Scientist at Viator, you will lead the development of advanced recommender systems that personalize travel experiences for users — your work will directly impact how customers discover and engage with travel offerings. You will collaborate closely with product managers and engineers to define the requirements and success metrics for your models.

You will be responsible for designing, implementing, and optimizing machine learning algorithms — your focus will be on enhancing the accuracy and efficiency of recommendations based on user behavior and preferences. You will also conduct experiments to validate your models, iterating based on feedback and performance metrics.

In addition to technical contributions, you will mentor junior team members, sharing your expertise and fostering a culture of learning within the team. You will participate in code reviews and contribute to best practices in machine learning and data science.

What we offer

Viator provides a flexible work environment that supports a healthy work-life balance — you can choose to work remotely or join the team on-site in London as needed. We offer competitive compensation packages that are regularly benchmarked against industry standards, including base salary and annual bonuses.

You will have access to various employee benefits, including tuition assistance for professional development and lifestyle benefits to support your personal interests. Our culture encourages giving back, with donation matching for charitable contributions.

Join us at Viator, where you can make a meaningful impact on the travel experiences of millions while working in a supportive and innovative environment.