Senior Backend Engineer

$350,000 - $400,000
Full-time / Onsite (5 days/week)

About The Role

As a Senior Backend Engineer at Mochi Health, you’ll be responsible for the core systems and data channels that facilitate a world-class experience for our customers, pharmacy technicians and many more team members who interface with our proprietary platform each and every day. You will work with talented engineers, building out cutting-edge systems from Machine Learning path finding algorithms to hand-crafted video encoding protocols, all in service of providing deeper capabilities and insights to the customer experience. Take advantage of developments in artificial intelligence to bring innovative and exciting new features to our customers. These are just a few of the intriguing challenges you might be faced with at Mochi Health.

What You’ll Do

• Lead the development, optimization and expansion of our core backend services. (Node/Express)
• Drive best practices in performance, security, and scalability as we scale rapidly over the next 6/12 months.
• Collaborate closely with Product, Design and Frontend teams to deliver seamless, intuitive user experiences.
• Own key architectural decisions, mentoring engineers, and elevating back-end excellence across the company.
• Build out data-driven services and systems to bolster the customer experience.
• Influence engineering culture, fostering innovation and technical ownership within the team.

Who You Are

• 7 years of back-end development experience, with deep expertise with Javascript/Typescript, as well as some exposure to Kotlin/Swift.
• Experience leading technical initiatives and shipping scalable, high-performance systems to support web and mobile applications.
• Strong knowledge of modern back-end tooling. (TypeScript, ESLint, CI/CD pipelines)
• A passion for creating fast, optimized and elegant solutions to difficult problems.
• Familiarity with machine learning algorithms, and general low level development.
• Startup mindset: you thrive in fast-moving environments, take ownership, and love solving problems at scale.
• Bonus: Experience with WebSockets, real-time data, compiled code languages, or healthcare-related applications.

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.

✨ Comprehensive Health Coverage – Robust medical, dental, and vision insurance to support your health—so you can feel your best, in and out of work.

💰 Financial Security – Plan for your future with a 401(k) plus company matching and fully covered life insurance—because peace of mind matters.

🌴 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.

🥗 Daily Fuel – Our office is stocked with an unlimited espresso and matcha bar, plus delicious lunch served five days a week. No sad desk lunches here.

🌿 Connection & Community – We value real relationships. From team lunches and office hangs to offsite retreats, we create space to connect and collaborate.

🚀 High-Impact Work – Be part of shaping the future of digital healthcare during an exciting period of growth and innovation.

💸 Competitive Compensation – We offer a top-of-market salary and a generous equity package—because you deserve to share in the upside you help create.

👩‍💻 World-Class Team – Join a team of thoughtful, driven professionals across engineering, product, clinical, operations, and beyond—each bringing excellence and empathy to the table.

💣 Profitable & Explosive Growth – Our growth is like trying to drink from a firehose while riding a rocket, as we commit to decisions that ensure long-term success, stability, and the well-being of our team and customers—all without the constraints of VC funding.

📍 Prime Location – Our vibrant downtown San Francisco HQ is just steps from public transit, great coffee shops, and everything the city has to offer.

The base salary for this full-time position ranges from $350,000 to $400,000, 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.