Data Scientist III

About the role

At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through our consumer brands, B2B network, and travel advertising business.

Here, you'll do meaningful work that helps millions of people discover, book, and experience travel with more ease, confidence, and joy. Our five Behaviors-Traveler First, Think Big, Operate with Excellence, Ownership Mindset, and Succeed Together-help foster a supportive environment where people can grow their careers and have the flexibility, benefits, and support to do their best work. Join us and build for travelers everywhere.

Please note that this role is only available in Chicago, IL

Introduction to the Team

Expedia Group Advertising helps Expedia Group and its partners connect with travelers and understand the impact of advertising across Expedia Group brands and partner channels. Within Emerging Business Technology, the Measurement, Attribution & Data Platform organization builds the capabilities that turn advertising interactions and outcomes into reliable measurements, attribution, and insights.

As a Software Development Engineer II, you will contribute to the backend services and data platforms that support this work—from ingesting and processing advertising and conversion data to powering measurement and reporting experiences. The systems you build help advertisers and internal teams understand campaign performance and make informed decisions. You’ll work with engineers, product partners, and analytics stakeholders on distributed systems where data quality, timeliness, scale, and operational reliability matter.

We’re looking for an engineer who takes ownership, delivers thoughtfully, and cares about building maintainable systems that work reliably in production. You’ll have opportunities to contribute across the development lifecycle, improve existing platforms, and help evolve the way Expedia Group measures advertising outcomes.

In This Role, You Will

• Analyze large, complex datasets to solve business and product challenges.
• Develop and apply statistical, machine learning, and experimentation methodologies to generate actionable insights.
• Partner with stakeholders across Product, Engineering, and the business to define problems and drive data-informed decisions.
• Build scalable analytical solutions, dashboards, and measurement frameworks.
• Communicate findings and recommendations clearly to technical and non-technical audiences.
• Mentor junior team members and contribute to analytics best practices.

Minimum Qualifications

• Bachelor's degree in Data Science, Statistics, Mathematics, Computer Science, Economics, Engineering, or a related quantitative field.
• 4+ years of experience in data science, analytics, or a related field applying statistical analysis, experimentation, machine learning, or predictive modeling to business problems.
• Advanced proficiency in SQL and Python, R, or similar programming languages.
• Experience designing and executing experiments, statistical analyses, and predictive models, and translating findings into business recommendations.
• Ability to independently manage analytical projects from problem definition through implementation and stakeholder adoption.
• Strong communication skills with experience presenting insights to both technical and non-technical audiences.

Preferred Qualifications

• Master's degree or PhD in a quantitative field.
• Experience developing, deploying, or monitoring machine learning models in production environments.
• Expertise in experimentation, causal inference, A/B testing, and advanced statistical methods.
• Demonstrated ability to influence business strategy and decision-making through data-driven insights.
• Experience mentoring junior team members and partnering with senior stakeholders.
• Familiarity with AI/ML applications, generative AI, and large-scale data environments.

Please note that this role is only available in Chicago, IL. We follow a flexible work model, which requires employees to be in the office at least three days a week. We are unable to offer relocation assistance for this role. 

Starting pay for this role will vary based on multiple factors, including location, available budget, and an individual’s knowledge, skills, and experience. Pay ranges may be modified in the future.

Benefits and perks

Expedia Group offers benefits and perks designed to support employees and their families, including medical, dental, and vision coverage, paid time off, an Employee Assistance Program, wellness and travel reimbursement, travel discounts, and International Airlines Travel Agent Network (IATAN) membership. Learn more about life at Expedia Group at https://careers.expediagroup.com/life.

Accommodation requests

Expedia Group is committed to providing an inclusive and accessible recruiting experience. If you need an accommodation or adjustment due to a disability during the application or recruiting process, please submit a request at https://expedia.service-now.com/askeg?id=job_accommodation.

About Expedia Group

Expedia Group includes three flagship consumer brands - Expedia, Hotels.com, and Vrbo - along with a leading B2B travel business and travel advertising offerings. Across our brands and business, we help travelers explore the world with confidence and ease.

Important notice

Employment opportunities and job offers at Expedia Group will always come from Expedia Group's Talent Acquisition and hiring teams. Never share sensitive personal information unless you are confident of the recipient. Expedia Group does not extend job offers via email or messaging tools to individuals with whom we have not made prior contact. Our email domain is @expediagroup.com. The official place to find and apply for roles is https://careers.expediagroup.com/jobs/.

Equal Opportunity