Senior Data Scientist, Tonal
$170-190k
Offers equity
Electromagnetic home gym
Open for applications
Electromagnetic home gym
501-1000 employees
Open for applications
$170-190k
Offers equity
501-1000 employees
Company mission
To help people look, feel, and be the strongest and fittest versions of themselves.
Role
Who you are
- Success in this role requires strong statistical judgment, experience with product-driven ML, and a focus on delivering insights that are both trustworthy and immediately usable by cross-functional stakeholders
- Strong statistical experience in causal inference methods like Difference in Difference, propensity score matching, regression discontinuity analysis, and randomized control trials to help link product changes to business outcomes
- Applied experience building and evaluating machine learning models for prediction, segmentation, or uplift in a product or business context
- Ability to develop reproducible, scalable analytical notebooks and workflows that transition effectively from development to production environments
- Experience partnering with product teams to define feature-level KPIs and building robust, well-documented dbt models to expose those metrics across analytics layers
- Strong track record of creating clear, decision-oriented visualizations in tools such as Looker and Databricks that communicate insights unambiguously to cross-functional stakeholders
- 3-5+ years of experience
- Tools and libraries: dbt, databricks, statsmodels, scipy, scikit-learn, causalml, prophet
- Languages: sql, python, r
- At Tonal, we believe that the unique and varied lived experiences of our teammates contribute to our overall strength
- We don’t just appreciate differences, we celebrate them, and we always seek people that represent a wide variety of backgrounds
- We’re dedicated to adding new perspectives to the team and designing employee experiences that contribute to your growth as much as you do to ours
- If your experience aligns with what we’re looking for (even if you don’t check every single box), send us your application. We would love to hear from you!
What the job involves
- This Senior Data Scientist will drive causal and machine learning-based analyses to measure the impact of product features on user behavior, engagement, and business outcomes, translating results into clear, actionable recommendations
- The role partners closely with product, analytics engineering, and fellow data scientists to build in-house causal inference tools, define KPIs, build production-ready analytical workflows, and deliver high-quality, governed visualizations
- Design, implement, and productionalize statistically rigorous causal analyses to quantify the impact of product features on user behaviors, engagement metrics, and downstream business outcomes
- Develop and maintain causal frameworks that link product interventions to behavioral change, engagement shifts, and business performance
- Select and apply appropriate experimental and observational methods, leveraging regression- and ML-based approaches where appropriate to control for confounding and heterogeneity
- Validate causal findings through robustness checks, sensitivity analyses, and clear articulation of assumptions and limitations
- Translate results into clear, actionable recommendations that inform product strategy, marketing decisions, and executive-level prioritization
- Develop analytical notebooks and workflows that are reproducible, scalable, and suitable for deployment in production environments
- Partner with product and cross-functional stakeholders to define feature-level engagement and efficacy KPIs aligned with business objectives
- Incorporate model-derived signals (e.g., predicted engagement, risk scores, uplift estimates) into KPI frameworks where appropriate to improve measurement and decision-making
- Implement testing, documentation, and versioning practices to ensure KPI definitions are reliable, discoverable, and consistently interpreted
- Maintain metric documentation and metadata to support self-service analytics and cross-functional consumption
- Design and deliver high-quality visualizations in Looker and Databricks that clearly communicate analytical and ML-driven insights without requiring supplemental explanation
- Ensure visual outputs are intuitive, decision-oriented, and aligned with established data visualization best practices
- Incorporate generative AI capabilities into visualization and analytics assets where appropriate to improve interpretability and cross-functional adoption
- Support visualization governance by implementing CI/CD workflows, validation checks, and approval processes to ensure production dashboards meet quality and consistency standards prior to release
Our take
Tonal has created a proprietary digital weight system and combined this with coaching to offer a personalised and smart home gym. Its wall-mounted system uses electromagnetism to control the weights, replacing bulky and hard-to-store weightlifting equipment with a slim and sleek machine.
As well as selling the machines, Tonal sells subscriptions to personal training sessions and workout routines. The fitness landscape is shifting toward at-home equipment other similar equipment is supplied by Peloton and Mirror.
Tonal has seen impressive growth, investing equity funding into content initiatives, high-profile partnerships, scaling operations, and strong celebrity endorsements. It remains to be seen, however, if the current trend of home-workout equipment will stick around, let alone gain new momentum, but Tonal's cleverly designed equipment gives it an edge over competitors.
Steph
Company Specialist at Welcome to the Jungle
Insights
-38% employee growth in 12 months
Company
Funding (last 2 of 7 rounds)
Apr 2023
$130m
LATE VC
Mar 2021
$250m
SERIES E
Total funding: $580m
Company benefits
- We look at the whole picture to give you a competitive salary, top-tier benefits, and lifestyle perks
- Working for Tonal includes a top-quality health care package, commuter benefits, support for new parents, and more
- Your well-being is important to us. Take time off when you need it with flexible vacation days
- Enjoy weekly catered team lunches at our San Francisco headquarters, plus a kitchen full of healthy (and not-so-healthy) snacks
- At Tonal we encourage a fun and inclusive atmosphere. We make the time to socialize at office happy hours, team offsites, and special company-wide events
- Fitness is our thing. Use Tonal in the office whenever it fits your schedule. Partner workouts are always welcome
- From day one you’ll get set up with your own personal laptop, headphones, standing desk, and whatever else you need to do your best work
- Treat yourself! When you’re part of Team Tonal you get discounts on everything from Gear Shop apparel to your very own Tonal
Company HQ
SoMa, San Francisco, CA
Leadership
Aly Orady
(Founder, Board Member & Advisor)They started their career at Hewlett-Packard’s Computer Systems Laboratory designing super-computers, followed by technical leadership roles at a series of startups, including Kealia, Inc. (now Sun/Oracle). Served as the company's CEO from 2015 before transitioning into their current role in April 2023.
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