Job Description

This role is eligible for our hybrid work model: 2 days in-office
Applied Data Scientist, Performance Marketing
We're a data-driven organization, which makes our Analytics and Data Science teams the brains of our operation. On the cutting edge of customer and business analytics, they make sure all our decisions and innovations are based on the latest insights.
Why this job's a big deal:
As an Applied Data Scientist - Performance Marketing, you will play a key role in shaping and optimizing Priceline's bidding strategies across platforms such as Google, Kayak, Tripadvisor, Trivago, and other major partners. You will design, build, and implement machine learning and statistical models that directly improve campaign performance, efficiency, and ROI in a fast-paced, dynamic, auction-based environment.
You will be responsible for translating business objectives into data science solutions, building and testing predictive models, and driving experimentation to improve bidding outcomes. As part of marketing, you will work closely with pricing, data, engineering, and product teams to implement models in production and continuously evolve our bidding stack.
Our marketing team manages billions of bids across multiple marketplaces every day, constantly refining strategies based on new signals and performance feedback. This role requires curiosity, experimentation, and the ability to find structure in a complex, data-rich, and sometimes messy environment.
In this role you will get to:
Modeling and OptimizationDesign, develop, and deploy ML models for bid optimization and performance forecasting. Leverage statistical and causal inference methods (e.g., Bayesian modeling, uplift modeling) to improve decision-making. Continuously monitor model performance, retrain, and improve as needed.


Data Exploration and AnalysisAnalyze large, complex datasets to uncover patterns, insights, and optimization opportunities. Identify and build the right datasets and data pipelines required to support model development. Handle imperfect or fragmented data with structured problem-solving and creative data engineering approaches.

Experimentation and MeasurementDesign and run A/B tests to evaluate model-driven bidding strategies. Apply causal inference to assess incremental impact and optimize future spend allocation. Partner with analysts and engineers to integrate experimentation frameworks into production systems.


Collaboration and CommunicationCollaborate with cross-functional teams (data, product & engineering) to identify business opportunities and prioritize projects. Translate technical insights into clear, actionable recommendations for stakeholders. Present model results and experimental outcomes to senior leaders and non-technical audiences.

Innovation and ScalabilityWork with stakeholders to identify clear opportunities to develop new approaches Prototype new approaches to bidding, automation, and signal integration. Continuously explore new modeling techniques, data sources, and partner APIs to improve outcomes. Contribute to building a scalable and modular ML infrastructure for digital marketing.

Who you are:3-5 years of experience applying data science and machine learning to solve problems end-to-end. Hands-on experience with experimentation, causal inference, and Bayesian modeling. Proficiency in Python or R, with experience using ML libraries such as scikit-learn, XGBoost, PyTorch, or TensorFlow. Strong data analysis and SQL skills; experience working with large datasets (BigQuery, Spark, etc.). Proven ability to translate business goals into measurable data science solutions. Experience creating data pipelines or working with ETL processes. Excellent communication and collaboration skills; able to explain complex ideas simply. Curiosity, adaptability, and an impact-focused mindset, always striving to make a difference for our customers. A positive attitude toward change, and a strong sense of ownership and teamwork. Fluent English (verbal & written) Illustrated history of living the values necessary to Priceline: Customer, Innovation, Team, Accountability and Trust. The Right Results, the Right Way is not just a motto at Priceline; it's a way of life. Unquestionable integrity and ethics is essential.

#LI-VM1
#LI-Hybrid
Who we are
WE ARE PRICELINE.
Our success as one of the biggest players in online travel is all thanks to our incredible, dedicated team of talented employees. Priceliners are focused on being the best travel deal makers in the world, motivated by our passion to help everyone experience the moments that matter most in their lives. Whether it's a dream vacation, your cousin's graduation, or your best friend's wedding - we make travel affordable and accessible to our customers.
Our culture is unique and inspiring (that's what our employees tell us). We're a grown-up, startup. We deliver the excitement of a new venture, without the struggles and chaos that can come with a business that hasn't stabilized.
We're on the cutting edge of innovative technologies. We keep the customer at the center of all that we do. Our ability to meet their needs relies on the strength of a workforce as diverse as the customers we serve. We bring together employees from all walks of life and we are proud to provide the kind of inclusive environment that stimulates innovation, creativity and collaboration.
Priceline is part of the Booking Holdings, Inc. (Nasdaq: BKNG) family of companies, a highly profitable global online travel company with a market capitalization of over $80 billion. Our sister companies include Booking.com, BookingGo, Agoda, Kayak and OpenTable.
If you want to be part of something truly special, check us out!
Flexible work at Priceline
Priceline is following a hybrid working model, which includes two days onsite as determined by you and your manager (ideally selecting among Tuesday, Wednesday, or Thursday). On the remaining days, you can choose to be remote or in the office.
Inclusion is a Big Deal !
To be the best travel dealmakers in the world, we believe our team should reflect the broad range of customers and communities we serve. We are committed to cultivating a culture where all employees have the freedom to bring their individual perspectives, life experiences, and passion to work.
Priceline is a proud equal opportunity employer. We embrace and celebrate the unique lenses through which our employees see the world. We'd love for you to join us and help shape what makes our team extraordinary.
Applying for this position
We're excited that you are interested in a career with us. For all current employees, please use the internal portal to find jobs and apply.
External candidates are required to have an account before applying.