At Lemon Health, we’re building the world’s most personalized AI health companion — one that helps people actually take action toward better health.

While most wellness apps stop at monitoring, Lemon Health goes further. Our AI integrates your calendar, location, wearables, emails, and medical data to deliver real-time, context-aware health recommendations — and connects them directly to actionable steps in your daily life.

Our mission is simple but ambitious:

Help billions of people take healthier actions every day.

Founded by former Google leaders behind Gemini, DeepMind, and the Google Assistant, Lemon Health combines world-class expertise in AI, personalization, and large-scale consumer products.

We’re backed by leading advisors and entering a rapid build phase — joining now means shaping the foundation of a product that can meaningfully improve lives.

The Role

We’re looking for a Senior Software Engineer to join our founding team.

You’ll design, build, and scale the systems powering our AI-driven health companion. You’ll work across the stack, collaborating with product and AI teams to deliver features that make health actions effortless and intelligent.

What You’ll Do

Design, develop, and maintain scalable backend and frontend systems
Collaborate cross-functionally to define, design, and ship new product features
Write clean, efficient, maintainable code and review others’ contributions
Ensure performance, quality, and reliability of core applications
Troubleshoot, debug, and improve system performance
Help shape our engineering culture, tooling, and technical direction

Qualifications

5+ years of experience in software engineering with strong backend or full-stack expertise
Proficiency in Python and modern web frameworks (Flask, FastAPI)
Experience with React/TypeScript or similar frontend technologies
Strong understanding of object-oriented programming and software design principles
Excellent problem-solving, analytical, and communication skills in English
Comfortable working independently and remotely in a fast-paced environment
Experience with Agile development and version control (Git) is a plus
Passionate about health, AI, and building products that matter
Bachelor’s degree in Computer Science, Engineering, or a related field