Senior Backend Engineer

$350,000 - $400,000
Full-time / Onsite

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.

Life at Mochi

• Comprehensive Health Coverage – Medical, dental, and vision insurance to keep you at your best.
• Financial Security – 401(k) with company matching and fully covered life insurance.
• Time to Recharge – Unlimited PTO, generous company holidays, and flexibility to take the time you need.
• Wellness First – Group activities, mindfulness sessions, and fitness perks to support your well-being.
• Connection & Community – Team lunches, office hangouts, and offsite meetups to build meaningful relationships.
• High-Impact Work – Shape the future of digital healthcare at a pivotal moment in our growth.
• Competitive Compensation – Top-tier salary and a generous equity package.
• Fast-Paced & Exciting – Join a hyper-growth team that moves fast and builds with purpose.
• World-Class Team – Work alongside top engineers, product leaders, and operators in a high-performance environment.
• Prime Location – Enjoy a vibrant workspace in downtown San Francisco.
• In Office Perks – Unlimited espresso & matcha, breakfast and lunch, 5 days a week!

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.