# Senior Data Scientist (NYC) at BoldVoice

- Company: BoldVoice (YC S21)
- What the company does: Speech and accent coaching app for non-native English speakers. Backed by Y Combinator.
- Company website: https://boldvoice.com
- Type: Startups
- Level: Senior
- Location: New York, NY, US
- Work setup: On-site
- Pay: $140K to $220K base salary per year (USD)
- Posted: 2026-07-28
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/boldvoice/jobs/bnsCrdy-senior-data-scientist-nyc
- Page: https://www.1752.vc/careers/jobs/boldvoice-senior-data-scientist-nyc/

## About the role

We're looking for our first Data Scientist to own how BoldVoice measures itself and decides what to build next. This is not a reporting role. You will be the person who decides what "working" means for a feature, designs the experiment that tests it, calls the result honestly, and then digs into the data to find the next thing worth building. You'll sit at the intersection of product, growth, and our speech ML team, and your analyses will directly change the roadmap.

## What they're looking for

- 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
- 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

Tags: Engineering