Senior Data Scientist

😀 Who you are

• You take a question from "we don't know why this is happening" all the way to a recommendation the team acts on that week
• You have strong statistical judgment. You know when a result is real, when it is noise, and you say so plainly even when the answer is inconvenient
• You care about the product, not just the analysis. Your goal is to change what ships, not to produce a spreadsheet or deck
• You want to work fast, you want to not get interrupted by meetings, and you want to not need to ask for permission to do things

✨ Requirements

• At least 5 years in data science or product analytics, ideally at a consumer subscription app or a fast-moving startup
• Deep experimentation experience: power analysis, variance reduction techniques like CUPED, handling multiple comparisons, and recognizing when a clean A/B test isn't possible
• Strong SQL and Python (pandas, scikit-learn, statsmodels or equivalent). You have worked directly against a production database, not only through a BI tool
• Fluency with the consumer subscription funnel: install to trial to paid, cohort retention, LTV, and paid acquisition measurement
• Experience with product analytics and experimentation tooling. We use Mixpanel and GrowthBook on top of PostgreSQL
• Up to date with latest developments in using LLM tools like Claude Code, Cursor, Codex or similar to rapidly prototype and ship code quickly
• We work out of our office in downtown NYC, and want our team to be in person at least 3x a week
• Nice to have: causal inference beyond A/B testing, exposure to speech or audio ML evaluation, or experience measuring learning outcomes in education products

🎯 What success looks like in 3 months

• The team trusts one shared definition of our core metrics, and you own it
• Experiment velocity is up and experiment quality is higher, because you set the bar for how we read results
• You have found at least one non-obvious insight about our users that changed what we build
• You are the person people come to before deciding whether a feature worked

🎁 What we offer

• You will be compensated in salary and generous stock options, so you feel like an integral part of the success and growth of the company
• Benefits include excellent fully paid health/vision/dental insurance and a 401K program
• We're an in-person team and we work out of our office in downtown Manhattan in NYC. If you're not in NYC, we would like to help you move here and can help with your relocation
• A+ team: join a small and mighty team where your work has immediate impact
• Access to exclusive startup events, conferences and networks

📲 How to Apply:

Reach out here or email us at engineering [at] boldvoice [dot] com to start the conversation. Include a short note about an analysis you ran that changed a product decision, and what you'd want to look at first at BoldVoice.

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.