Data Scientist

Lully

Data Scientist at HappyRobot, focusing on leveraging data to enhance AI workforce products. Collaborate across teams to measure and analyze product performance and client outcomes.

Posted 7/14/2026full-timeSan Francisco • California • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Data Science and Product Analytics, with a strong focus on experimental design, A/B testing, and statistical analysis to drive product improvements and client outcomes. Proficient in SQL and Python, capable of translating complex data into actionable insights for both technical and non-technical stakeholders.

Highest-signal resume keywords

Data ScienceA/B TestingSQLPythonExperimental Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Data ScienceA/B TestingExperimental DesignCausal InferenceHypothesis-Driven AnalysisStatistical ModelingAnalytical FrameworksProduct Metrics DefinitionData AnalysisRoot-Cause Analysis

Soft Skills

Strong Communication SkillsAttention to DetailCuriosityOwnershipIndependence

Tools & Technologies

DashboardsSelf-Serve ToolsExperimentation SystemsAnalytical Data Models

Industry Keywords

Product AnalyticsMachine LearningClient OutcomesOperational EfficiencyStatistical Significance

Tech Stack

Tools & technologies

PythonSQL

About the role

Key responsibilities & impact

You’ll help make data a core part of how we build and improve HappyRobot’s products.
Work closely with Product, Engineering, and Machine Learning teams to measure changes to our models, agents, and product features.
Define meaningful metrics, design experiments, and conduct deeper analyses to understand how our agents create value for clients.
Evaluate A/B tests and model changes to analyze millions of conversations and workflows.
Turn complex data into clear insights that influence our product and ML roadmaps.
Define and track product, feature, and agent-level metrics.
Design, run, and interpret A/B tests for model changes, prompts, agent behavior, workflows, and product features.
Measure how performance of our agents affects client outcomes, such as task completion, operational efficiency, response quality, and automation rates.
Connect offline model evaluations with production performance and real-world customer impact.
Conduct deep analyses across conversations, workflows, and product usage to identify opportunities and explain differences in performance.
Investigate anomalies and regressions, perform root-cause analyses, and recommend improvements.
Build statistical models, simulations, and analytical frameworks to support product and ML decisions.
Partner with Engineering to improve instrumentation, data quality, experimentation systems, and analytical data models.
Build dashboards and self-serve tools that help teams understand product and agent performance.
Communicate findings and recommendations clearly to technical and non-technical stakeholders.

Requirements

What you’ll need

4+ years of experience in Data Science, Product Analytics, or another highly quantitative product role.
Strong experience with experimental design, A/B testing, statistics, causal inference, and hypothesis-driven analysis.
Advanced proficiency in SQL and Python.
Experience defining and operationalizing product and feature metrics.
Ability to translate ambiguous product questions into rigorous analyses and actionable recommendations.
Strong product instincts and the ability to distinguish statistical significance from meaningful product or customer impact.
Experience partnering closely with Product, Engineering, or Machine Learning teams.
Strong written and verbal communication skills.
High attention to detail and commitment to analytical accuracy.
Founder mindset: ownership, independence, curiosity, and willingness to go deep.

Benefits

Comp & perks

Comprehensive Benefits - Healthcare, dental, vision coverage.
Top-Tier Compensation - Competitive salary + equity in a high-growth startup.
Opportunity to work at a high-growth AI startup, backed by top investors.
Ownership & Autonomy - Take full ownership of projects and ship fast.
Work With the Best - Join a world-class team of engineers and builders