TL;DR

Senior Data Scientist (Recommendations): Develop and optimize recommendation algorithms, ranking, retrieval, and experimentation tooling to improve match quality and user engagement on a large-scale dating platform with an accent on machine learning, causal inference, and two-sided marketplace dynamics. Focus on designing experiments, building dashboards, and delivering executive insights to shape product roadmap and mentor data science team members.

Location: Hybrid role requiring in-office collaboration three times per week in Los Angeles, Palo Alto, or San Francisco

Salary: $160,000–$170,000 per year

Company

%hirify_global% is a leading dating app with over 630 million downloads and 50 million monthly users worldwide, known for its innovative recommendation and matching technology.

What you will do

Collaborate with Product, Engineering, and ML teams to identify and evaluate new opportunities and translate findings into product recommendations.
Support ML improvements in retrieval, ranking, and personalization algorithms.
Lead experimentation design and analysis tailored to a two-sided marketplace.
Build tools and dashboards for experiment reads and KPI monitoring.
Deliver clear, executive-ready presentations on tradeoffs and business impact.
Mentor and inspire other data scientists, elevating experimentation and model evaluation practices.

Requirements

Location: Hybrid with in-office presence in Los Angeles, Palo Alto, or San Francisco
Bachelor’s, Master’s, or Ph.D. in quantitative field with 5+ years in data science focused on recommender systems or personalization.
Proficiency in SQL and Python.
Strong knowledge of statistics, causal inference, and online experiment design.
Experience with machine learning for recommendations and model evaluation.
Strong product sense and ability to communicate insights effectively.

Nice to have

Experience with modern recommendation stacks and counterfactual evaluation.
Knowledge of Spark and MLOps concepts.
Understanding of two-sided marketplace dynamics and guardrail design.
Proven mentorship and cross-functional influence.

Culture & Benefits

Unlimited PTO and 10 annual Wellness Days.
Comprehensive health, vision, and dental coverage.
401(k) employer match and Employee Stock Purchase Plan.
Paid parental leave and family forming benefits.
Professional development stipend and access to extensive online courses.
Support for mental health, fitness, and commuter subsidies.
Free premium subscriptions for Match Group apps including %hirify_global% Platinum.