Mid-level Data Scientist - Applied AI team

Trustpilot is a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest independent consumer review platform. In the Applied AI team, we're focused on leveraging AI and ML to improve how people discover, interact with, and trust businesses on Trustpilot. We are seeking Data Scientists to join our Applied AI team across B2B, B2C and our Data Products to build intelligent, data-driven product features that improve user experience and deliver business impact. You will collaborate with engineers, product managers, designers, data analysts, and ML engineers to develop and maintain impactful AI/ML models at scale.

To succeed in this role, you'll bring hands-on experience developing and deploying machine learning solutions, especially in areas such as ranking, search, recommendations, conversational experiences and personalization. You'll also demonstrate a strong understanding of user behaviour data and how to use it to influence product development. A product mindset and ability to work cross-functionally are essential.

• Great opportunity to make a real product impact by applying the state of the art in AI and ML.
• Work on Data Science initiatives aimed at improving the Trustpilot consumer experience: from ranking and recommendations to natural language processing and search.
• Build, deploy, and maintain production-ready ML models that power features used by millions of users.
• Collaborate with engineers, product managers, and designers to develop user-facing features informed by ML and experimentation.
• Use data and model insights to identify new opportunities for personalization and discovery across the platform.
• Take ownership of specific ML features or components and drive them from concept to production and iteration.
• Work with tools such as GCP Vertex AI, BigQuery, Airflow, and emerging ML technologies.
• Be part of a friendly, diverse, innovative, international team and workplace that encourages learning and growth.

• Experience in a Data Science or Machine Learning role, ideally on consumer-facing products like search, ranking, recommendations, personalization or discovery.
• Hands-on ability with ML modeling, including semantic search, ranking algorithms, clustering, recommendation systems, and NLP, with a track record of deploying models to production.
• Strong skills in data analysis, statistical modeling, and computational problem-solving; background in a quantitative field such as Statistics, Mathematics, Physics, or Computer Science.
• Comfortable working with large-scale data and behavioral/user interaction data to build data-driven product features.
• Proficient in Python and SQL, and able to work across the full ML lifecycle from exploration to deployment.
• Experience with cloud platforms like GCP (preferred), AWS, or Azure, and tools such as BigQuery, Vertex AI, and Airflow.
• Familiarity with ML production tooling and infrastructure, including CI/CD workflows.
• Comfortable using metrics to monitor, iterate, and improve model performance.
• Excellent communication skills to engage with technical teams and business stakeholders.
• Collaborative and agile — experienced in working with Product Managers, UX Designers, and Engineers within cross-functional teams.
• You take ownership, move quickly, and are driven to solve real user problems with scalable, measurable, and maintainable solutions.

• A range of flexible working options to dedicate time to what matters to you
• Competitive compensation package + bonus
• 25 days holiday per year, increasing to 28 days after 2 years of employment
• Two paid volunteering days a year
• Learning and development opportunities through the Trustpilot Academy and Blinkist
• Pension and life insurance
• Health cash plan, online GP, 24/7, Employee Assistance Plan
• Full access to Headspace for mental wellbeing
• Paid parental leave
• Season ticket loan and cycle-to-work scheme
• Central office location with amenities and snacks
• Regular opportunities to connect with Trusties, including company-wide events and ERG activities
• Access to deals and discounts, financial guidance, and development programs

We are Open to All and welcome all backgrounds. If you don't meet every requirement, we still encourage you to apply and share how you can contribute to a fantastic culture for our team.

Trustpilot began in 2007 to be the universal symbol of trust, bringing consumers and businesses together through reviews. We are open, independent, and impartial, helping consumers make the right choices and businesses to build trust, grow and improve. Today we have more than 300 million reviews and 64 million monthly active users on average, with 140 billion annual Trustbox impressions, and 1,000+ employees across global locations.

We are a global, inclusive workplace that values diverse perspectives and ideas. Our purpose is to help people and businesses help each other, and we give you autonomy to shape a career you can be proud of. If you're ready to grow, let's go.

Join us at the heart of trust.

Trustpilot is committed to creating an inclusive environment where people from all backgrounds can thrive. We consider all applications without regard to race, ethnicity, national origin, religious beliefs, gender identity or expression, sexual orientation, neurodiversity, disability, age, parental or veteran status. We are an equal opportunity employer.
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