Staff Software Engineer, Experimentation Platform

About the Role

Key Responsibilities

• Build an Experimentation platform that can evolve to handle new statistical methodologies, machine learning, artificial intelligence technologies, and advanced causal inference and data mining techniques.
• Drive the statistical and ML development of internal platforms, including the theoretical and engineering aspects of products such as the A/B testing platform, Causal Inference platform, and Adaptive Learning platform (RL/MAB).
• Expand the statistical and causal inference algorithms to support large-scale experimentation volume, computation load, and high noise-to-signal business environments.
• Apply semi-supervised learning, LLM, active learning, documentation embedding/retrieval, and data augmentation strategies to advance hypothesis generation within the experimentation platform.
• Advise data scientists, operators, and engineers across the company on experimental design and adoption of experimentation tools.

Requirements

• 7+ years of industry experience developing statistical or ML models with business impacts.
• M.S., or PhD. in Computer Science, Statistics, Causal Inference, Experimentation, Applied Mathematics, or related quantitative fields.
• Demonstrated expertise with programming languages such as Python, Java, Kotlin, Go, SciKit Learn, Spark MLLib, etc.
• Experience building reliable, scalable, highly available distributed systems.
• You are located or planning to relocate to San Francisco CA, Sunnyvale CA, Seattle WA, or New York NY.

Nice to Have

• Deep expertise in mathematics, statistics, causal inference, or econometrics.
• Fullstack industry experience (web + backend).
• Experience with any of the 'Big Data' technologies (e.g., Postgres, Redis, Elasticsearch, Snowflake, Mode, Segment, Spark).

Qualifications

• Educational background with a Master’s or PhD in a relevant quantitative field.

Benefits & Perks

• Competitive salary within the range of $159,800-$235,000 USD, determined by skills, experience, and location.
• Opportunities for equity grants.
• Comprehensive benefits including a 401(k) plan with employer matching, 16 weeks of paid parental leave, wellness benefits, commuter benefits match, paid time off, and paid sick leave.
• Medical, dental, and vision benefits, 11 paid holidays, disability and life insurance, family-forming assistance, and mental health programs.
• Paid time off: flexible vacation and 80 hours of paid sick leave for salaried roles; accrued vacation and sick time for hourly roles.