Senior Backend Engineer, Patient Experience

Healthcare is broken at the first step: patients cant find the right care understand what it costs or access the medications they need. Mochi Health is fixing this.

Were building an AI-driven marketplace that makes healthcare discoverableconnecting patients to the right providers transparent pharmacy pricing and affordable medications. Over the past few years weve grown rapidly by combining clinical expertise with technology that actually works for real people not just hospital systems.

Our platform does what legacy healthcare cant: 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. Were proving that healthcare can be more affordable more human and far more intuitive than what exists today.

Join a team thats rebuilding healthcare from the patient up. At Mochi Health youll 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.

$230000 - $280000
Full-time / Onsite (5 days/week)

About The Role

Were looking for a Senior Backend Engineer to help build Mochis patient platform the commerce clinical and fulfillment infrastructure that connects patients to medications across a growing number of care categories. Mochi has helped hundreds of thousands of patients lose over 5 million pounds. The backend systems you design will power how the next wave of patients discover medications qualify for treatment receive prescriptions and manage ongoing care.

As a senior member of the engineering team you will own the design and development of backend systems that power core patient workflows ordering billing prescribing fulfillment and subscription management. You will architect systems that support multiple medication types pharmacy partners and purchase models and ensure our infrastructure keeps pace as we expand into new areas of care. Mochi is an AI-first engineering organization we build with AI tooling we ship AI-powered automation into our products and we expect engineers to push both forward.

Healthcare commerce is genuinely complex. A single patient order can involve clinical approval workflows multi-pharmacy fulfillment routing subscription billing and regulatory constraints and all of it needs to work reliably at scale. If youre drawn to systems problems where the domain complexity is real and the impact is tangible this is that role.

What Youll Do

• Own the backend systems that power medication ordering and fulfillment from the moment a patient selects a medication through clinical approval pharmacy routing and delivery across multiple pharmacy partners and fulfillment channels
• Build and evolve subscription and billing infrastructure that supports multiple purchase models payment recovery and pricing that varies by pharmacy and medication type
• Design the data models and domain architecture that underpin ordering prescribing and clinical workflows ensuring they generalize cleanly as Mochi expands across care categories
• Architect the systems that connect clinical workflows to the patient experience health checks prescribing approvals and medication management that work across different treatment categories with AI-assisted automation where it can improve speed accuracy and patient outcomes
• Collaborate with Product Clinical and Operations teams to translate healthcare and regulatory requirements into backend systems that are reliable auditable and maintainable. Own key architectural decisions mentor engineers and raise the engineering bar through code review testing practices and technical standards including how the team uses AI tooling to ship faster and with more confidence

Who You Are

• 5-7 years of backend engineering experience. Youve built and operated production systems that handle real complexity not just traffic but complex domain logic stateful workflows and integration with external partners
• You get data modeling right. You think carefully about schema design state transitions and domain boundaries because youve seen what happens downstream when the model is wrong
• You build things that run in production not just pass review. You care about observability failure modes and what happens at 2 AM when something breaks. Youve debugged systems under pressure and improved them afterward
• You ship end to end from scoping and design through deployment and monitoring. You take ownership of outcomes not just code
• Youre already using AI tools to build faster and youre excited about pushing that further whether thats agentic development workflows AI-powered automation or finding new ways to apply LLMs to real problems
• Strong collaborator with excellent communication skills able to work cross-functionally with clinical product and operations teams where the requirements are shaped by healthcare and regulatory constraints
• Excited to work in-person with our team in San Francisco
• Our stack is TypeScript Express PostgreSQL Redis Kubernetes and AWS. Experience with these is a plus but we care more about engineering fundamentals than language-specific expertise

Nice to Have

• Youve worked with payment infrastructure (Stripe preferred) subscription billing payment recovery or the kind of billing complexity that shows up in healthcare
• Youve built software in healthcare pharmacy or other regulated environments where compliance isnt optional and patient safety shapes the architecture
• Youve integrated with external partners at scale fulfillment systems marketplace APIs or multi-vendor platforms where you dont control the other side
• Youve migrated or evolved complex production systems without breaking them you know what dual-writes phased cutovers and careful rollouts look like in practice
• Youve experimented with AI-powered development tools agentic workflows or LLM-based automation and you have opinions about where they work and where they dont.

Our Core Technologies Include: Typescript Javascript 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 bestso weve 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 -Were 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 RechargeEnjoy unlimited PTO generous company holidays and true flexibility. We trust you to take the time you need to rest reset and thrive

Wellness FirstFrom 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 doesnt hurt either

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

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The base salary for this full-time position ranges from $230000 to $280000 in addition to meaningful 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-TJ1

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

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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.

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