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Job Description: Data Scientist - Cloud Data Technologies (CDT) Team at eBay

The Cloud Data Technologies (CDT) team at eBay is responsible for managing data infrastructure, including the experimentation platform and overseeing the end-to-end data lifecycle for all eBay data, from onsite to analytics use cases.

We are seeking a Data Scientist who is passionate about driving business impact through advanced data science methodologies to enhance decision-making speed and quality, producing actionable insights from data. You will have the opportunity to work on a variety of projects, including:

• ML driven bot traffic detection

• Building customer profiles

• A/B testing methodology enhancements such as interleaving tests, sequential testing, and Bayesian methods

Key Responsibilities:

• Assist in complex data science projects and model development.

• Contribute to the implementation of advanced statistical models and machine learning algorithms.

• Support experimentation and causal inference tasks, including A/B and multivariate testing.

• Conduct advanced SQL for big data query optimization.

• Collaborate with cross-functional teams to define and refine data solution requirements.

• Stay updated on industry developments and suggest new technologies or methodologies.

Requirements:

• Master’s or Ph.D. in Computer Science, Statistics, or a related quantitative field.

• Experience in building models and evaluating model performance.

• Proficiency in Python or R, and relevant libraries (e.g., scikit-learn, GBM).

• Advanced SQL for big data query optimization.

• Experience with Hadoop, Spark in cloud platforms.

• Excellent problem-solving skills and experience in deploying machine learning models in production environments.

• Superb communication skills to convey complex findings to non-technical audiences.

The base pay range for this position is expected in the range below:

Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including 401(k) eligibility and various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.

If hired, employees will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

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eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, veteran status, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at talent@ebay.com. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

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