Reddit is hiring a Principal Data Scientist, User Ecosystem. This is a Remote – United States role. Reddit is a community of communities. 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.

Reddit is a complex consumer ecosystem where users, content, communities, and conversations interact over time. We are looking for a very senior data science thought leader to shape how Reddit understands and improves that ecosystem for the user / consumer flywheel. This role will define the measurement, modeling, and experimentation strategy for major Consumer questions: how users discover value, form habits, and deepen engagement; how we understand and serve user intent; how content and communities evolve; and how our systems create durable value for users, contributors, communities, and Reddit.

The ideal candidate will bring deep expertise in one or more areas of consumer science, such as:

• Recommender systems and information retrieval
• User modeling, personalization, lifecycle, LTV, or optimization
• Content, community, or ecosystem modeling
• Knowledge graphs and representations of users, content, and communities
• Causal inference, experimentation, and long-term consumer measurement

What you’ll do:

• Set the scientific direction for high-impact Consumer problems spanning discovery, relevance, and personalization
• Build a durable understanding of users, their intent, their needs, and the behaviors that lead to lasting engagement
• Develop models and frameworks that represent users, content, communities, and their relationships over time
• Determine how to measure consumer and ecosystem health when objectives compete
• Set learning agendas and steer experimentation strategy to distinguish durable improvement from temporary gains
• Build state-of-the-art measurement systems to evaluate heterogeneous effects across user personas
• Ensure coherence around ecosystem interactions including feedback loops, selection effects, and interference
• Translate complex technical findings into clear product and business decisions
• Develop exceptional scientists through mentoring and influence data science org health and direction

Requirements:

• Deep expertise in at least one relevant area, with the breadth and curiosity to work across adjacent areas
• A deep understanding of how to model and optimize systems involving users, content, and communities
• Ability to frame and lead the most ambiguous questions and identify the most important uncertainties
• Exceptional technical judgment across model design, objective selection, validation, and experimentation
• Advanced knowledge of modern machine-learning methods for behavioral and content data, including representation learning
• Experience working across Product, Engineering, Research, and other partner teams
• Excellent written and verbal communication, with the ability to influence senior stakeholders and executives
• Significant experience applying data science, machine learning, statistics, experimentation, or causal inference to consumer products

Pay Transparency: This job posting may span more than one career level. In addition to base salary, this job is eligible to receive equity in the form of restricted stock units. The base salary range for this position is $313,000 – $365,100 USD. To provide greater transparency to candidates, we share base salary ranges for all US-based job postings.

Source: Reddit. Apply here: https://job-boards.greenhouse.io/reddit/jobs/8289345