Staff Data Scientist - Ads Measurement, Signals, Privacy
Toronto, Canada · Staff+ · Contract
Sponsorship not specifiedDetected 16 hours ago
PythonMachine LearningData ScienceStatisticsA/B TestingResearchExperimental DesignCommunicationProblem SolvingMentoring
Stay score
odds of building a lasting career here
40Risky
Cap-exempt (no lottery)0
Sponsors this role90
Entry-level history0
PERM / green-card track0
Lottery odds40
Fits your clock70
Thin sponsorship signal and lottery-bound. A low-probability bet with your clock running. Prioritize cap-exempt roles and proven entry-level sponsors first.
Lottery odds assume a STEM candidate.
Personalize to your clock →Employer immigration record
from this employer's Department of Labor filings
Green-card intent detected
Reddit, Inc. obtained a prevailing wage determination for Software Developers in San Francisco, CALIFORNIA on 2026-06-11. No matching green-card filing appears in our data yet. The determination expires in 3 days (2026-09-08), and a green-card filing must follow before then or the employer starts over.
Files H-1B transfers
35 transfer filings in the last year, covering 35 workers. Median labor-condition decision: 7 days. An employer that already files transfers is one that can take over an existing H-1B.
Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
Community outcomes
No reports yet — be the first to help the next applicant.
About the role
- It's built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet.
- Every day, Reddit users submit, vote, and comment on the topics they care most about.
- With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet's largest sources of information.
Responsibilities
- Design the Future of Ads Identity: Develop/employ probabilistic models for identity resolution. Design the methodology that links on-platform and off-platform actions to maximize addressability while honoring privacy.
- Advance Lift Methodologies & Experimentation: Own the statistical rigor behind Reddit's Brand and Conversion Lift products. Innovate experimental design and develop infrastructure that supports large-scale, high-velocity, low-bias testing for advertisers.
- Define Ground Truth & Evaluation Frameworks: Solve the industry-wide challenge of validating identity and measurement. Design the objective functions and truth sets used to train our models and measure the incremental impact of our identity graph.
- Lead Through Cross-Functional and Technical Influence: Collaborate deeply with engineering, product, and sales to align on strategic goals, translate insights into action, and drive execution.
- This is a high-impact, high-autonomy role where you'll influence strategic direction, set a high technical bar, and drive cross-functional initiatives across one or more critical focus areas in the Ads organization.
- Design the Future of Ads Identity:
- Develop/employ probabilistic models for identity resolution.
- Design the methodology that links on-platform and off-platform actions to maximize addressability while honoring privacy.
- Own the statistical rigor behind Reddit's Brand and Conversion Lift products.
- Innovate experimental design and develop infrastructure that supports large-scale, high-velocity, low-bias testing for advertisers.
Requirements
- Advanced degree (Master's or Ph.D.) in Statistics, Mathematics, Physics, Economics, or Operations Research
- For M.S. holders: 10+ years of industry experience in applied science or data science roles
- For Ph.D. holders: 6+ years of industry experience in applied science or data science roles
- Demonstrated expertise in at least one of the following areas:
- Advanced proficiency in statistical programming (Python or R) and SQL.
- Strong understanding of experimental design, causal inference, or A/B testing methodologies
- Experience working in fast-paced, ambiguous environments with cross-functional teams
- Required:
- Deep understanding of the ads ecosystem
- Measurement & Experimentation at Scale (with focus on lift and attribution)
- Identity Graph Creation & Resolution Methodology and Infrastructure
- Predictive Modeling with Signal Loss
- Experience with machine learning or optimization techniques
- Exceptional problem-solving and communication skills, with a track record of influencing product and engineering partners
Benefits
- Comprehensive Healthcare Benefits and Income Replacement Programs
- Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
- Mental Health & Coaching Benefits
- Flexible Vacation & Paid Volunteer Time Off
- Generous Paid Parental Leave
Company info
- Reddit is a community of communities.
Equal opportunity
- equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve.
- If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.
Visa & Work Authorization
- You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
This listing is sourced directly from Reddit's careers page and normalized into a canonical job model.