Product Data Scientist

All roles San Francisco, CA Product Data Scientist San Francisco, CAFull-timeMid-levelOn-site Zof AI is hiring for this role in San Francisco, CA. This is a full-time opportunity for candidates who want to contribute directly to the development of ambitious AI products in a high-performance environment. Hands-on experience measuring the quality of AI or machine learning systems with data, plus daily use of AI tools in your own analysis work, is required. Compensation Competitive salary Plus meaningful equity Apply for this role About This Role Zof AI is seeking a Product Data Scientist to measure how well our agent fleets actually find and fix defects. This role owns the numbers behind the product: detection precision and recall, remediation success rates, experiment design, and the statistical rigor that separates a real improvement from noise. If you have worked as an Applied Scientist, Product Data Scientist, Quantitative Analyst, or Machine Learning Analyst, this is that discipline at Zof AI. The ideal candidate is fluent in Python and SQL, reasons about causes rather than correlations, and would rather report an honest number than a flattering one. Responsibilities Define and own the metrics that describe how well our agent fleets find and fix defects.Measure detection precision and recall against real customer codebases.Quantify remediation success rates and the strength of the validation evidence behind them.Design experiments that show whether a product or model change actually helped.Partner with engineering on eval design so agent runs are scored consistently over time.Build analysis pipelines in Python and SQL that other people can rerun and trust.Translate findings into clear recommendations for engineering, product, and leadership.Own the reporting that keeps our claims about the product grounded in evidence. Requirements Strong working fluency with Python and SQL.Solid grounding in statistics, experiment design, and inference.Experience analyzing messy real-world data and drawing defensible conclusions.Ability to turn a fuzzy question into a metric someone can act on.Comfort reasoning about causality, bias, and confounding.Clear written and verbal communication.Comfort operating in a fast-moving environment.Evidence of analysis that changed a decision. Nice to have Experience measuring the quality of machine learning or AI systems.Experience with causal inference methods or Bayesian analysis.Experience with data warehouses, dbt, or notebook-to-production workflows.Familiarity with software testing, CI pipelines, or developer tooling metrics. Data ScienceExperimentationStatisticsPythonSQL What we provide in San Francisco MacBook Pro Premium AI development tools Cursor Ultra Claude Code Ultra OpenAI Codex Max or equivalent advanced AI tooling Access to a high-performance AI product environment Close collaboration with leadership, engineering, and customers Opportunity to work in the San Francisco AI ecosystem Wellness and productivity support where applicable Competitive startup environment High ownership Direct product impact Benefits may depend on role and final offer terms. Apply Apply for Product Data Scientist This application is for the Product Data Scientist role in San Francisco, CA. Please complete every required field. You are applying for Product Data Scientist San Francisco, CA Company website 1 Basic information Full name* Email* Phone or WhatsApp number* Current location* City and country 2 Professional links LinkedIn URL* GitHub URL* Portfolio or personal website (optional) Resume or CV link* A link to Google Drive, Dropbox, LinkedIn, your website, or a PDF 3 Role-specific background Years of experience* Strongest programming languages Best project link (optional) AI tools you use Comfort with frontend Select a levelBeginnerIntermediateAdvancedExpert Comfort with backend Select a levelBeginnerIntermediateAdvancedExpert Comfort with databases Select a levelBeginnerIntermediateAdvancedExpert Comfort with AI coding tools Select a levelBeginnerIntermediateAdvancedExpert Systems or products you have worked on 0/3000 4 Location fit Are you able to work from or relocate to the San Francisco area for this role?* Select an answerYesOpen to it, with details belowNo Earliest start date or availability* Relocation or work authorization note (optional) 5 Written responses Why are you interested in Zof AI?* 0/3000 Why are you interested in this location?* 0/3000 What is the strongest evidence that you would succeed in this role?* 0/3000 What is the hardest thing you have built, sold, owned, or led?* 0/3000 How do you currently use AI tools in your work?* For example, describe a project where you used AI tools to build faster, improve quality, or solve a difficult technical problem. 0/3000 How did you hear about us? (optional) Education (optional) Anything else you would like us to know? (optional) 0/3000 6 Final confirmation I understand this is a location-based role and have reviewed the location requirements.* I confirm that the information I have provided is accurate.* By submitting, you agree that Zof AI may store and review your application for hiring purposes. Related roles Accra, GhanaFull-timeMid-levelOn-site Product Data Scientist Zof AI is seeking a Product Data Scientist to measure how well our agent fleets actually find and fix defects. This role owns the numbers behind the product: detection precision and recall, remediation success rates, experiment design, and the statistical rigor that separates a real improvement from noise. If you have worked as an Applied Scientist, Product Data Scientist, Quantitative Analyst, or Machine Learning Analyst, this is that discipline at Zof AI. The ideal candidate is fluent in Python and SQL, reasons about causes rather than correlations, and would rather report an honest number than a flattering one. GHS 7,000-14,000 / month Data ScienceExperimentationStatisticsPythonSQL View roleApply