Data Scientist II - Advertising Technology

Expedia • San Jose, WA

4d

About The Position

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win. We provide a full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We’re building a more open world. Join us. Data Scientist II - Advertising Technology Introduction to the team We are seeking a Data Scientist II to join our high-performing Advertising Technology team , where we use data, experimentation, and applied modeling to improve ad delivery, ranking, auctions, and bidding performance . This role sits at the intersection of applied statistics, machine learning, experimentation, and large-scale advertising systems , turning complex business questions into measurable, data-driven insights. You will work closely with Product, Engineering, Machine Learning, and Analytics teams to design experiments, analyze large-scale datasets, and build self-service tools that inform decisions and drive continuous improvement across the advertising marketplace.

Requirements

• Bachelor’s degree or higher in Statistics, Economics, Computer Science, Data Science , or a related quantitative field
• 3–5 years of professional experience in a data science, applied science, or analytics role
• Hands-on experience developing machine learning and AI models for real-world business problems, with successful production deployment
• Strong foundation in statistics and applied data analysis
• Hands-on experience designing, running, and analyzing A/B experiments , and interpreting results to inform decisions
• Proficiency in SQL and experience working with large-scale datasets using Spark or Databricks
• Proficiency in Python and experience using ML frameworks such as PyTorch or TensorFlow for analysis and modeling
• Strong communication skills, with the ability to clearly convey analytical findings and recommendations to both technical and non-technical stakeholders

Nice To Haves

• Experience working on advertising, ad delivery, auctions, bidding, ranking, or marketplace systems
• Applied experience with ML models used in ads , such as CTR/CVR prediction, ranking, or optimization models
• Familiarity with auction mechanics , including first-price vs. second-price auctions, pacing, and budget constraints
• Experience working with modern deep learning architectures , such as Transformers/BERT, DCN, Graph Neural Networks, GANs, or diffusion models
• Background in ads, marketplaces, e-commerce, or travel platforms

Benefits

• full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources
• medical/dental/vision
• paid time off
• Employee Assistance Program
• wellness & travel reimbursement
• travel discounts
• International Airlines Travel Agent ( IATAN ) membership

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level