Mochi Health
At Mochi Health, we excel at conquering challenges and creating inventive solutions for the betterment of people's well-being. Our culture embraces inclusivity and diversity, empowering both our patients and team members through the sharing of knowledge and information. Although we may not possess all the answers, our unwavering commitment to learning continually drives us forward. Together, we diligently collaborate, find enjoyment in our work, and celebrate our accomplishments.
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Senior React Native / Expo Engineer
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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.
Senior React Native / Expo Engineer
Salary Band: $230,000 - $280,000 (Open to Staff leveling at $280-330K)
Location: San Francisco, CA (5 days/week onsite)
About The Role
At Mochi, our engineering team operates with exceptional leverage. We believe in high talent density, where a focused, elite team powers a profitable, nine-figure ARR healthcare platform serving hundreds of thousands of patients. We are looking for a Senior React Native Engineer to own the mobile applications that serve as the primary daily touchpoint for our patients and providers.
Mochi has already helped patients lose over 5 million pounds through metabolic care, and we are now rapidly expanding into the frontiers of preventative healthcare—including hormone optimization (HRT/TRT), longevity medicine, and cutting-edge peptide therapies. The mobile experiences you architect will directly dictate how this next wave of patients tracks sensitive biometrics, communicates securely with their care teams, and manages complex medication protocols.
Because of our high scale-to-team ratio, we do not operate in isolated technical silos. You will act as our mobile product specialist, owning the application end-to-end: from architecting offline-first data synchronization and deep native health integrations, to leveraging Expo to deliver a modern, unified cross-platform experience. If you are drawn to mobile product problems where the domain complexity is real, the autonomy is absolute, and the impact on patient outcomes is tangible, this is the role.
What You'll Do
- Architect the Mobile Clinical Experience: You will build the dynamic, high-performance mobile tools our patients and providers rely on. You will architect deep integrations with Apple HealthKit and Google Health Connect to seamlessly ingest and visualize real-time patient data, and build highly responsive, secure messaging systems that connect patients directly to their care teams without friction.
- Leverage the Expo Ecosystem: You will treat our mobile infrastructure as a product advantage. You will leverage the full power of Expo to deliver a flawless, cross-platform experience, utilizing EAS (Expo Application Services) to manage our build pipelines, configure custom native modules via Config Plugins, and push seamless over-the-air (OTA) updates to iterate rapidly and ensure patients always have the latest clinical tools.
- Design for the Edge: Mobile healthcare apps must work in the real world—which means handling spotty cellular connections and offline states gracefully. You will architect robust, offline-first data synchronization strategies and implement aggressive local caching to ensure patients can always access their care plans.
- Champion the Mobile UX: You are a mobile product specialist. You don't just implement designs; you obsess over the details that make an app feel premium and native. You sweat the frame rates, the navigation stack transitions, the keyboard avoidance behaviors, and the accessibility standards required to support a diverse patient population.
- Build Agentic Workflows: Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to accelerate your own development, but you will also integrate AI capabilities directly into our mobile interfaces to automate clinical operations and streamline patient support.
- Raise the Engineering Bar: Own key mobile architectural decisions, establish patterns for strict code reuse between our web and mobile clients, and elevate the engineers around you through rigorous code review and mobile testing practices.
Who You Are
- You have operated high-stakes mobile systems. You have 5-7+ years of frontend engineering experience, with deep, specialized focus on React Native and Expo. You've built, shipped, and maintained complex, data-heavy mobile applications in production.
- You are an Expo and Mobile Infrastructure expert. You understand the modern Expo ecosystem deeply. You know how to manage EAS builds, integrate complex native modules (like HealthKit/Health Connect) without ejecting, and navigate the strict review guidelines of the iOS App Store and Google Play Store.
- You master mobile state and performance. You understand the React render cycle on mobile. You know how to prevent UI thread blocking, optimize list rendering for massive messaging datasets, and orchestrate complex asynchronous data fetching securely.
- You are a full lifecycle owner. You build things that run in production, not just pass review. You view managing the CI/CD pipeline, monitoring crash rates (e.g., Sentry for mobile), and owning your app's reliability in the wild as a fundamental part of your job.
- Your workflows are altered by AI. You are already using frontier agentic tools (e.g., Codex 5.3, Claude Opus 4.6) to build faster. You can describe specific ways these models have structurally changed how you code, while retaining the deep technical skepticism required to audit, verify, and own its output.
- You are a collaborative builder. You have low ego, high standards, and excellent communication skills. You thrive in cross-functional environments where engineering requirements are heavily shaped by healthcare regulations, compliance, and patient safety.
- You are excited to work in-person. You want to build alongside the team 5 days a week in our San Francisco office.
- If you are targeting Staff leveling: We expect a demonstrated track record of setting technical direction across teams, navigating deep ambiguity, and measurably leveling up the engineers around you.
- Our mobile stack is React Native, Expo, TypeScript, and modern state management tools. Experience with native iOS (Swift/Objective-C) or Android (Kotlin/Java) is a strong plus for when we need to drop down into native code, but we index on React Native mastery and product sense.
Our Process
We respect your time. Here is exactly what to expect:
- Intro call (30 min, remote) — Chat with our recruiter about the role and expectations.
- Hiring manager screen (45 min, remote) — Technical background, motivation, and what you're looking for.
- Technical round (2.5 hrs, remote) — Practical coding (AI tools welcome) + system design conversation. Real problems, not LeetCode.
- Team meet (2 hrs 15 mins, on-site) — Come to our SF office to meet your future manager, engineering peers, and product partners for 30-minute 1:1s, concluding with a quick recruiter wrap-up.
We are ready to move as fast as you are. Total interview time is ~6 hours. We can go from the first intro to offer in two weeks, or pace the rounds to comfortably fit your current work schedule.
Life at Mochi Health
🌴 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 $230,000 to $280,000, 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.
Ready to apply?
Apply to Mochi Health
Senior Front-End Engineer
Share this job
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.
$230,000 - $280,000
Full-time / Onsite (5 days/week)
About The Role
At Mochi, our engineering team operates with exceptional leverage. We believe in high talent density, where a focused, elite team powers a profitable, nine-figure ARR healthcare platform serving hundreds of thousands of patients. We are looking for a Senior Frontend Engineer to own the interfaces that our patients and medical providers rely on every single day.
Mochi has already helped patients lose over 5 million pounds through metabolic care, and we are now rapidly expanding into the frontiers of preventative healthcare—including hormone optimization (HRT/TRT), longevity medicine, and cutting-edge peptide therapies. As a frontend leader, you will dictate how this next wave of patients discovers treatments, interacts with their care team, and safely tracks their health outcomes.
Because of our high scale-to-team ratio, we do not operate in isolated technical silos, and we do not throw requirements over the wall. You will own your applications end-to-end: architecting the client-side state, building flawlessly responsive UI, optimizing rendering performance, and owning the frontend observability in production. If you are drawn to product problems where the UX complexity is real, the autonomy is absolute, and the impact on patient outcomes is tangible, this is the role.
What You’ll Do
- Build High-Density Healthcare Interfaces: You will build the complex tools our clinical team relies on to treat patients safely. You will architect dynamic, multi-step medical intake engines, high-density provider charting dashboards, and patient-facing applications that handle sensitive PHI with perfect state synchronization.
- Master Client-Side Architecture: Healthcare data is heavy and highly relational. You will design robust, scalable frontend architectures that manage complex state, handle asynchronous data fetching cleanly, and ensure interfaces feel instantaneous even when underlying APIs are slow.
- Collaborate Across the Client Ecosystem: While your primary domain is the web, Mochi also heavily leverages React Native and Expo for our mobile applications. You will work closely with mobile engineers to establish shared state patterns, reusable business logic, and a unified architectural standard across all client platforms.
- Champion the User Experience: You don't just implement specifications; you deeply care about how patients and providers experience Mochi. You sweat the details of the UI and possess the strong product sense required to make pragmatic, high-quality design decisions on the fly using our component systems that measurably improve patient outcomes.
- Own Frontend Reliability: You are responsible for what happens after the code ships. You will own the frontend deployment pipelines, establish strict performance budgets, and manage client-side observability and error tracking (e.g., Sentry, Datadog) to catch regressions before our patients do.
- Build Agentic Workflows: Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to accelerate your own development, but you will also integrate AI capabilities directly into our product interfaces to automate clinical operations and scale our provider workflows.
Who You Are
- You have operated high-stakes systems. You have 5-7+ years of frontend engineering experience. You've built and operated production React applications that handle real complexity, crossing the boundary between dense data visualization and polished, accessible user experiences.
- You master React and state architecture fundamentals. You understand the React render cycle deeply, moving beyond surface-level hooks to truly orchestrate complex data flows. You know the tradeoffs between server-side rendering, static generation, and client-side fetching, and you leverage tools like Next.js pragmatically without over-complicating the architecture.
- You are an independent product builder. You don't need a pixel-perfect Figma file to ship great software. You have a strong eye for design and can unblock yourself visually while maintaining strict adherence to our design system and brand language.
- Your workflows are altered by AI. You are already using frontier agentic tools (e.g., Codex 5.3, Claude Opus 4.6) to build faster. You can describe specific ways these models have structurally changed how you code, while retaining the deep technical skepticism required to audit, verify, and own its output.
- You are a collaborative builder. You have low ego, high standards, and excellent communication skills. You thrive in cross-functional environments where engineering requirements are heavily shaped by healthcare regulations, compliance, and patient safety.
- You are excited to work in-person. You want to build alongside the team 5 days a week in our San Francisco office.
- If you are targeting Staff leveling: We expect a demonstrated track record of setting technical direction across teams, navigating deep ambiguity, and measurably leveling up the engineers around you.
- Our frontend stack is TypeScript, React, Next.js, Tailwind CSS, and modern state management/data fetching tools (e.g., React Query, Zustand). Experience with these is a strong plus, but we index on engineering fundamentals, web performance, and product sense over framework dogmatism.
Our Process
We respect your time. Here is exactly what to expect:
- Intro call (30 min, remote) — Chat with our recruiter about the role and expectations.
- Hiring manager screen (45 min, remote) — Technical background, motivation, and what you're looking for.
- Technical round (2.5 hrs, remote) — Practical coding (AI tools welcome) + system design conversation. Real problems, not LeetCode.
- Team meet (2 hrs 15 mins, on-site) — Come to our SF office to meet your future manager, engineering peers, and product partners for 30-minute 1:1s, concluding with a quick recruiter wrap-up.
- We are ready to move as fast as you are. Total interview time is ~6 hours. We can go from the first intro to offer in two weeks, or pace the rounds to comfortably fit your current work schedule.
Our Core Technologies Include: Typescript, Javascript, Node.js, Next.js, React, React Native, SQL, Redis, Redux, New Relic, Kubernetes, CSS, AWS, Cypress, Docker, Express
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
💊 Mochi Health Membership – We cover your monthly subscription fee so you can experience the same care as our patients (medications not included)
🌴 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 $230,000 to $280,000, 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.
#LI-Onsite
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.
Ready to apply?
Apply to Mochi Health
Senior Fullstack Engineer
Share this job
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.
Senior Fullstack Engineer
Location: San Francisco, CA (5 days/week onsite)
Salary Band: $230,000 - $280,000 (Open to Staff leveling at $280-330K)
About The Role At Mochi, our engineering team operates with exceptional leverage. We believe in high talent density, where a focused, pragmatic team powers a profitable, nine-figure ARR healthcare platform serving hundreds of thousands of patients. We are looking for an Engineering Manager to help us scale, align, and unblock this organization.
Mochi has already helped patients lose over 5 million pounds through metabolic care, and we are now rapidly expanding into the frontiers of preventative healthcare. To support this growth, we are actively leveling up our engineering maturity—pairing our ambitious, early-career engineers with incoming Senior and Staff-level talent to build our next generation of clinical systems.
At Mochi, engineering is deeply integrated with our clinical and operational teams. We do not operate in silos. We need an Engineering Manager who is a true collaborative partner: someone who excels at mentoring junior developers, recruiting senior talent, maintaining a culture of high technical craft, and working directly with clinical leadership to co-design solutions for massive healthcare challenges. If you are a deeply technical leader who meets engineers where they are and cares profoundly about patient outcomes, this is the role.
What You'll Do
- Build High-Density Healthcare Interfaces: You will build the complex tools our clinical team relies on to treat patients safely. You will architect dynamic, multi-step medical intake engines, high-density provider charting dashboards, and patient-facing apps that handle sensitive PHI with perfect state synchronization.
- Bridge Clinical & Client: Connect our complex backend medication ordering and fulfillment pipelines to intuitive, highly responsive frontend interfaces. You will translate dense healthcare requirements into seamless digital experiences.
- Champion the User Experience: You don't just implement specifications; you deeply care about how patients and providers experience Mochi. You sweat the details of the UI and possess the strong product sense required to make pragmatic, high-quality design decisions on the fly that measurably improve patient outcomes.
- Own the Full Lifecycle: True full-stack means owning the delivery. You will design the database schema, write the API, build the React interface, deploy the service, and own both backend reliability and client-side error tracking in production.
- Build Agentic Workflows: Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to accelerate your own development, but you will also integrate AI capabilities directly into our product to automate clinical operations and scale our provider workflows.
- Raise the Engineering Bar: Own key architectural decisions across the stack, systematically upgrade legacy code, and elevate the engineers around you through rigorous code review, testing practices, and technical standards.
Who You Are
- You have operated high-stakes systems. You have 5-7+ years of full-stack engineering experience. You've built and operated production systems that handle real complexity, crossing the boundary between complex backend domain logic and polished frontend user experiences.
- You master client-side state and performance. You know how to manage complex state across a large frontend application. You understand the tradeoffs of server-side rendering vs. client-side fetching, caching strategies, and how to build interfaces that feel instantaneous even when the underlying healthcare APIs are slow.
- You get data modeling right. You think carefully about schema design and API boundaries, because you've seen what happens to the frontend when the foundational backend model is wrong.
- You are a full lifecycle owner. You build things that run in production, not just pass review. You are comfortable with (or eager to master) Kubernetes, Terraform, AWS, and CI/CD, and you view deploying your own code and owning your system's reliability as a fundamental part of your job.
- Your workflows are altered by AI. You are already using frontier agentic tools (e.g., Codex 5.3, Claude Opus 4.6) to build faster. You can describe specific ways these models have structurally changed how you code, while retaining the deep technical skepticism required to audit, verify, and own its output.
- You are a collaborative builder. You have low ego, high standards, and excellent communication skills. You thrive in cross-functional environments where engineering requirements are heavily shaped by healthcare regulations, compliance, and patient safety.
- You are excited to work in-person. You want to build alongside the team 5 days a week in our San Francisco office.
- If you are targeting Staff leveling: We expect a demonstrated track record of setting technical direction across teams, navigating deep ambiguity, and measurably leveling up the engineers around you.
Our Process
We respect your time. Here is exactly what to expect:
- Intro call (30 min, remote) — Chat with our recruiter about the role and expectations.
- Hiring manager screen (45 min, remote) — Technical background, motivation, and what you're looking for.
- Technical round (2.5 hrs, remote) — Practical coding (AI tools welcome) + system design conversation. Real problems, not LeetCode.
- Team meet (2 hrs 15 mins, on-site) — Come to our SF office to meet your future manager, engineering peers, and product partners for 30-minute 1:1s, concluding with a quick recruiter wrap-up.
We are ready to move as fast as you are. Total interview time is ~6 hours. We can go from the first intro to offer in two weeks, or pace the rounds to comfortably fit your current work schedule.
Life at Mochi Health
🌴 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 $230,000 to $280,000, 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.
Ready to apply?
Apply to Mochi Health
Sr. Backend Engineer
Share this job
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.
$230,000 - $280,000 (Open to Staff leveling at $280-330K)
Full-time / Onsite (5 days/week)
About The Role
At Mochi, our engineering team operates with exceptional leverage. We believe in high talent density, where a focused, elite team powers a profitable, nine-figure ARR healthcare platform serving hundreds of thousands of patients. We are looking for a Senior Backend Engineer to own the core systems that power this scale—from clinical approval workflows and multi-pharmacy fulfillment routing, to complex subscription billing and partner integrations.
Mochi has already helped patients lose over 5 million pounds through metabolic care, and we are now rapidly expanding into the frontiers of preventative healthcare—including hormone optimization (HRT/TRT), longevity medicine, and cutting-edge peptide therapies. The backend systems you architect will power how this next wave of patients discovers treatments, qualifies for care, and receives highly personalized, dynamic dosing protocols.
Because of our high scale-to-team ratio, we do not operate in isolated technical silos. You will own your systems end-to-end: designing the schema, writing the business logic, deploying to Kubernetes, and owning the observability in production. If you are drawn to architectural problems where the domain complexity is real, the autonomy is absolute, and the impact on patient outcomes is tangible, this is the role.
What You’ll Do
- Architect Healthcare Commerce: Build and evolve a subscription and billing infrastructure that handles the messy reality of healthcare. You will solve for mid-cycle medication switches, dynamic pricing across different pharmacy partners, payment recovery, and prorated billing.
- Build Clinical State Machines: Own the systems that power complex medication ordering and fulfillment. You will build highly reliable pipelines that handle compounding pharmacy integrations, controlled substance compliance, and personalized dosing protocols across a distributed network of external partners.
- Own the Infrastructure: Take hands-on ownership of the AWS and Kubernetes infrastructure that runs your services. You will establish CI/CD pipelines, build observability, and create deployment patterns that make it safe for the entire team to ship rapidly.
- Act as a Product Partner: Work directly with Clinical, Operations, and Product teams to shape what we build. You will evaluate proposed workflows, take ownership of business outcomes, and actively identify paths to deliver maximum patient value with highly efficient implementation.
- Build Agentic Workflows: Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to accelerate your own development, but you will also design the backend architecture that allows AI-assisted agents to automate clinical operations, improve patient safety, and scale our provider workflows.
- Raise the Engineering Bar: Own key architectural decisions, systematically upgrade legacy systems, and elevate the engineers around you through rigorous code review, testing practices, and technical standards.
Who You Are
- You have operated high-stakes systems. You have 5-7+ years of backend engineering experience. You've built and operated production systems that handle real complexity—not just high traffic, but complex domain logic, distributed stateful workflows, and deep integrations with external partners.
- You get data modeling right. You think carefully about schema design, state transitions, and domain boundaries, because you've seen what happens downstream when the foundational model is wrong.
- You are an infrastructure owner. You are comfortable with (or eager to master) Kubernetes, Terraform, AWS, and CI/CD, and you view deploying your own code and owning your system's reliability as a fundamental part of backend engineering.
- Your workflows are altered by AI. You are already using frontier agentic tools (e.g., Codex 5.3, Claude Opus 4.6) to build faster. You can describe specific ways these models have structurally changed how you code, while retaining the deep technical skepticism required to audit, verify, and own its output.
- You are a collaborative builder. You have low ego, high standards, and excellent communication skills. You thrive in cross-functional environments where engineering requirements are heavily shaped by healthcare regulations, compliance, and patient safety.
- You are excited to work in-person. You want to build alongside the team 5 days a week in our San Francisco office.
- If you are targeting Staff leveling: We expect a demonstrated track record of setting technical direction across teams, navigating deep ambiguity, and measurably leveling up the engineers around you.
Our stack is TypeScript, Node.js, Express, PostgreSQL, Redis, Kubernetes, Terraform and AWS. Experience with these is a strong plus, but we index on engineering fundamentals, distributed systems experience, and domain reasoning over language-specific syntax.
Our Process
We respect your time. Here is exactly what to expect:
- Intro call (30 min, remote) — Chat with our recruiter about the role and expectations.
- Hiring manager screen (45 min, remote) — Technical background, motivation, and what you're looking for.
- Technical round (2.5 hrs, remote) — Practical coding (AI tools welcome) + system design conversation. Real problems, not LeetCode.
- Team meet (2 hrs 15 mins, on-site) — Come to our SF office to meet your future manager, engineering peers, and product partners for 30-minute 1:1s, concluding with a quick recruiter wrap-up.
We are ready to move as fast as you are. Total interview time is ~6 hours. We can go from the first intro to offer in two weeks, or pace the rounds to comfortably fit your current work schedule.
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
💊 Mochi Health Membership – We cover your monthly subscription fee so you can experience the same care as our patients (medications not included)
🌴 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
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The base salary for this full-time position ranges from $230,000 to $280,000, 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.
#LI-Onsite #LI-AK1
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.
Ready to apply?
Apply to Mochi Health