Healthcare is broken at the first step: patients can't find the right care, understand what it costs, or access the medications they need. Mochi Health is fixing this.

We're building an AI-driven marketplace that makes healthcare discoverable—connecting patients to the right providers, transparent pharmacy pricing, and affordable medications. Over the past few years, we've grown rapidly by combining clinical expertise with technology that actually works for real people, not just hospital systems.

Our platform does what legacy healthcare can't: it gives patients transparent pricing before they pay, personalized medication management that follows them across providers, and long-term access to their own medical records. We're proving that healthcare can be more affordable, more human, and far more intuitive than what exists today.

Join a team that's rebuilding healthcare from the patient up. At Mochi Health, you'll work alongside people who value bold thinking, inclusive collaboration, and getting meaningful work into the world. If you want to do the most impactful work of your career, this is where to do it.

$150,000 - $220,000

Full-time / Onsite (5 days/week)

About The Role

We’re a telehealth company helping people lose weight at scale. Experimentation is central to our growth and patient experience—we need to know what truly works, what doesn’t, and why. We’re looking for a Senior Data Scientist who thrives on designing, running, and interpreting experiments across product, pharmacy, and design. You’ll work side-by-side with clinicians, designers, and engineers to push forward a culture of evidence-based decision-making.

This role is ideal for someone who wants to set the standard for how experiments are run at Mochi Health—bringing statistical rigor, practical intuition, and a deep sense of ownership.

What You’ll Do

Own the design and execution of experiments (A/B tests, quasi-experiments) across pharmacy, design, and product flows
Partner with design and pharmacy teams to ideate, prioritize, and scope impactful experiments
Build frameworks and tools to standardize experimentation and causal inference across teams
Ensure experiment integrity—sample sizing, randomization, stopping rules, multiple-testing corrections
Move beyond binary “did it win?” to nuanced insights: heterogeneous treatment effects, and trade-offs
Automate experiment reporting and integrate results into dashboards / internal tools
Mentor teammates and set best practices for experimentation at the company

Who You Are

Bachelor’s or Master’s in a quantitative field (e.g., Statistics, Engineering, Economics)
Bachelor’s, Master’s, or PhD in a quantitative field (e.g., Statistics, Computer Science, Economics)
4+ years of industry experience in applied experimentation (growth or product preferred)
Deep expertise in causal inference methods (A/B testing, DiD, matching, Bayesian methods)
Strong Python and SQL skills; capable of building reusable frameworks, not just one-off analyses
Clear communicator who can translate complex experimental results into actionable recommendations
Comfortable with ambiguity, fast iteration, and working across very different teams (Example: pharmacy, design, ops)
Motivated by impact - you want your work to directly shape patient care and company growth

Life at Mochi 💫

At Mochi, we believe your best work happens when you feel your best—so we’ve designed an environment that fuels your creativity, supports your growth, and makes every day exciting.

🥗 Daily Meals and Espresso Bar - Breakfast, lunch, and dinner every weekday. Our on-site barista keeps the espresso and matcha flowing all day

💰 Pre-Tax Commuter Perks - Save on transit and parking through pre-tax commuter benefits

💸 Top-of-Market Compensation - We offer competitive salaries along with generous equity packages so you can share in the success you help create

💣 Profitable and Rapid Growth - We’re scaling fast, with financial discipline and long-term vision. No VC constraints, just sustainable momentum and smart decisions

🚀 High-Impact Work - Help shape the future of digital healthcare. Your work here directly improves lives and scales nationwide

👩💻 World-Class Team - Collaborate with teammates from Tesla, SpaceX, Citadel, Harvard, IIT, and more. We value excellence, humility, and empathy in equal measure

✨ Comprehensive Benefits - 401(k) with match, generous time off, life insurance, and high-quality medical, dental, and vision plans.

🌴 Time to Recharge – Enjoy unlimited PTO, generous company holidays, and true flexibility. We trust you to take the time you need to rest, reset, and thrive.

🧘 Wellness First – From weekly mindfulness sessions to group workouts and fitness perks, your physical and mental health are top priority

🎉 Team Socials and Community - We make time to connect through regular socials, happy hours, and spontaneous events. Our stocked kitchen doesn’t hurt either

📍 Downtown SF HQ - Our San Francisco office is just steps from BART, Muni, and great food. It’s designed for deep work and casual collaboration

The base salary for this full-time position ranges from $150,000 to $220,000, in addition to equity and benefits. The salary range listed in each job posting represents the minimum and maximum targets for new hire salaries across all locations. Actual compensation within this range is determined by various factors, such as job-related skills, experience, relevant education or training, and location.

Workplace Policy

Mochi Health is an in-person company based in San Francisco, CA. Our team works together in person five days a week to foster collaboration, innovation, and strong connections. We believe that face-to-face interaction builds a culture of excellence and allows us to deliver the best outcomes for the patients and providers we serve.

Equal Opportunity

Mochi Health is an Equal Opportunity Employer. We make all employment decisions based solely on merit. We provide equal employment opportunities to all applicants and employees without discrimination on the basis of race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, disability status, or any other applicable legally protected characteristic. We prohibit any form of discrimination or harassment. This policy applies to all terms and conditions of employment, including hiring.

Candidate Privacy Notice

Please review Mochi Health's Candidate Privacy Notice here.

Accommodations

Mochi Health complies with the Americans with Disabilities Act (ADA), as amended by the ADA Amendments Act, and all applicable state or local laws. We will reasonably accommodate qualified individuals with a disability during the application process and throughout employment as required by law.

If you need any assistance or accommodations due to a disability, please contact us at hr@joinmochi.com.

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Senior Data Scientist