Principal Data Scientist

  • Expedia
  • London, UK
  • 10/05/2019
Full time Data Science Data Engineering Machine Learning Data Analytics Big Data Artificial Intelligence Data Management Statistics

Job Description

Are you passionate about using Data Science techniques to improve Customer Experience? Would you like to work in the fast-paced, competitive, customer-focused and data-rich world of online travel? 

Our Data Science team is growing! We are looking for a Principal Data Scientist to use Machine Learning to help optimize hundreds of millions of dollars of Marketing spend and to help increase customer long-term value through relevant and engaging communications. This exciting opportunity would allow you to solve high-impact, complex problems using some of the latest technology and approaches.

In addition, you will mentor and provide technical support to more junior members of the team and help ensure the timely delivery of key projects.

If you are an advocate for using Data Science to understand customer point of view and are seeking a high-profile role in which you’ll be able to influence our senior leadership team’s strategic decision-making, this could be the role for you!

What you'll do:

  • Build, deploy and optimise machine learning models which support improved acquisition and profitability of customers. This will entail working on a broad range of projects, including:
    • Optimizing our bidding strategies within Acquisition channels (accounting for seasonal trends, spend constraints, auction dynamics…)
    • Predicting customers long-term value to optimise spend allocation, re-targeting strategies…
    • Predicting customers intent and preferences to tailor landing pages, online advertising, Email/Push communications…
  • Mentor and provide technical support to more junior members of the team
  • Work in close partnership with Global Marketing, Product, Data and Technology teams to identify new opportunities to leverage Data Science and ensure that key projects that are carried out in the team are delivered in a timely fashion.
  • Develop a deep understanding of our data infrastructure and champion infrastructure development needs which will help the whole team work more effectively.
  • Be a technical leader on use, adoption and implementation of machine learning.

Who you are

  • MSc or PhD degree in any of the following fields: machine learning or computer science, statistics, mathematics with strong machine learning component;
  • Hands on experience in machine learning, building datasets, selecting and engineering features, building and optimizing algorithms;
  • Experience in several of the following domains: Real-time bidding, Learn-to-Rank, Recommender Systems, NLP, Computer Vision, Deep Learning, Regression, Classification, Clustering
  • Advanced knowledge of at least one of the following programming languages: Python, Scala;
  • Experience with statistics/machine learning packages such as Spark MLlib, Python (scikit-learn, pandas, numpy, scipy, Matplotlib), Keras, TensorFlow, PyTorch etc.
  • Good SQL/data manipulation skills required including cleaning and managing data;
  • Good programming practices, ability to write readable, fast code.
  • Intellectual curiosity and desire to learn new things, techniques and technologies
  • Nice to have:
    • Knowledge of test design, implementation and evaluation, with website A/B testing experience a plus;
    • Real world experience with Internet scale data on Spark, Hadoop or similar platform highly preferred;
    • Experience with data visualisation tools and packages

Join us to disrupt and have a look at what could be your career at Expedia

Why join us:

Expedia Group recognizes our success is dependent on the success of our people.  We are the world's travel platform, made up of the most knowledgeable, passionate, and creative people in our business.  Our brands recognize the power of travel to break down barriers and make people's lives better – that responsibility inspires us to be the place where exceptional people want to do their best work, and to provide them the tools to do so.  

Whether you're applying to work in engineering or customer support, marketing or lodging supply, at Expedia Group we act as one team, working towards a common goal; to bring the world within reach.  We relentlessly strive for better, but not at the cost of the customer.  We act with humility and optimism, respecting ideas big and small.  We value diversity and voices of all volumes. We are a global organization but keep our feet on the ground so we can act fast and stay simple.  Our teams also have the chance to give back on a local level and make a difference through our corporate social responsibility program, Expedia Cares.

If you have a hunger to make a difference with one of the most loved consumer brands in the world and to work in the dynamic travel industry, this is the job for you.

Our family of travel brands includes: Brand Expedia®, Hotels.com®, Expedia® Partner Solutions, Egencia®, trivago®, HomeAway®, Orbitz®, Travelocity®, Wotif®, lastminute.com.au®, ebookers®, CheapTickets®, Hotwire®, Classic Vacations®, Expedia® Media Solutions, CarRentals.com™, Expedia Local Expert®, Expedia® CruiseShipCenters®, SilverRail Technologies, Inc., ALICE and Traveldoo®.

Expedia is committed to creating an inclusive work environment with a diverse workforce. All qualified applicants will receive consideration for employment without regard to race, religion, gender, sexual orientation, national origin, disability or age.