Staff Data Scientist, Ads at Reddit

Role overview

Reddit’s Ads Data Science team uses robust data foundations, metrics, experimentation and statistical methods to improve advertiser value. This Staff Data Scientist role owns high-impact advertising problems across measurement, campaign and creative management, growth, retention and monetisation.

Responsibilities

• Own a strategic advertising problem from framing and data exploration through analysis, experimentation and recommendation.
• Build metrics, analytical foundations and models that explain campaign performance and advertiser outcomes.
• Design and evaluate experiments and causal or statistical methods for product and monetisation decisions.
• Partner with product, engineering, sales and business stakeholders to turn insights into shipped improvements.
• Communicate findings clearly to technical and executive audiences and influence roadmap priorities.
• Raise the team’s data-science standards through mentorship, reusable methods and rigorous measurement.

Qualifications

• Extensive experience in data science, experimentation, statistical modelling or applied machine learning.
• Strong SQL and Python or equivalent analytical programming skills.
• Experience with advertising, marketplaces, growth, retention, measurement or monetisation analytics.
• Ability to frame ambiguous problems, define success metrics and make recommendations from imperfect data.
• Strong understanding of experimental design, causal inference, forecasting or predictive modelling.
• Excellent written and verbal communication, collaboration and technical leadership skills.

Technology in this role

• Python: Strong SQL and Python or equivalent analytical programming .
• SQL: Strong SQL and Python or equivalent analytical programming .
• R: • Advanced proficiency in statistical programming (Python or R) and .

Role-specific candidate guide

Preparation notes based on the employer’s stated responsibilities and qualifications.

Understanding the scope. This Staff Data Scientist, Ads position at Reddit is best assessed through the work described in the employer’s posting, rather than the title alone. The available role overview says: “Reddit’s Ads Data Science team uses robust data foundations, metrics, experimentation and statistical methods to improve advertiser value. This Staff Data Scientist role owns high-impact advertising problems across…” Read that statement together with the responsibilities below to understand the likely balance between delivery, coordination and technical decision-making. The role belongs to the AI and data area, but that label is only a guide to the work; the employer’s own requirements remain decisive. Before applying, check the original listing for reporting lines, product or team assignment, employment terms and any details that may have changed since this copy was checked. Where this page says a fact is not specified, treat it as an open question rather than an implied promise.

What the responsibilities signal. The posting specifically names “Own a strategic advertising problem from framing and data exploration through analysis, experimentation and recommendation.”; “Build metrics, analytical foundations and models that explain campaign performance and advertiser outcomes.”; “Design and evaluate experiments and causal or statistical methods for product and monetisation decisions.”. For each duty, identify a project where you performed comparable work and be ready to describe the context, your own contribution, constraints, decisions, and measurable result. Explain how you moved from the initial need to implementation, review, release or operational follow-through, where those stages apply. If the work involved other teams or users, distinguish your decisions from the group’s contribution. Avoid presenting a technology keyword as proof by itself: connect it to the problem you solved, the scale or complexity involved, and what changed after your work. The source may contain additional duties; review it directly before preparing your application.

How to read the requirements. The listed qualifications include “Extensive experience in data science, experimentation, statistical modelling or applied machine learning.”; “Strong SQL and Python or equivalent analytical programming skills.”; “Experience with advertising, marketplaces, growth, retention, measurement.

Benefits

• Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
• Mental Health & Coaching Benefits
• Comprehensive Medical Benefits & Health Care Spending Account
• Registered Retirement Savings Plan with matching contributions
• Flexible Vacation & Paid Volunteer Time Off
• In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
• During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors .
• Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.

About Reddit

Reddit is a community platform whose Ads Data Science team supports measurement, campaign and creative management, advertiser growth, retention and monetisation.

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