Senior Data Scientist (Contract)
- New California, United States
- Remote
- Negotiable
Full-Time
Deadline: 30 Jan, 2026
- Posted: 3 weeks ago
- Vacancy: 1
- Gender: Male
- Senior Data Scientist (4-month, full-time)
- Contract Duration: 16 weeks
- Location: Remote (but with the ability to take meetings between 9:00 am to 5:00 pm EST time zone)
Scope of Work
- Traffic Health & Visibility Trends: Producing descriptive analyses of human traffic patterns, referrers, and indicators of traffic stability over time.
- Engagement & Attribution Exploration: Supporting preliminary assessments of how traffic sources relate to on-wiki engagement (e.g., likelihood of exploring additional pages or initiating contribution).
Deliverables
- Cleaned/joined datasets, summary tables, and Jupyter notebooks supporting analyses
- Time-series analyses for Traffic Health indicators and content reusers
- Natural experiment analyses with interpretable visuals and written summaries
Qualifications
- Advanced SQL (large-scale distributed datasets)
- Python expertise (pandas, numpy, statsmodels, scikit-learn, Jupyter)
- Ability to work collaboratively in GitLab repositories
- Time-series modeling experience
- Applied causal inference (Diff-in-Diff, event studies, lag analysis)
- Experience working with log-level or large behavioral datasets
Analytical Skills
- Ability to evaluate data feasibility and design methodological approaches
- Ability to interpret and communicate analytical uncertainty
- Strong documentation practices and reproducibility mindset
Collaboration & Reporting
The contractor will collaborate with the Product & Technology department and work closely with Data Engineering, Research & Decision Science, and relevant program teams. They will report to the project’s Staff Data Scientist.
How To Apply
You may apply at recruiting@wikimedia.org