Staff Frontend Engineer

About Us

Lunar is a stealth technology company building a new type of software platform for health systems. We are on a mission to revolutionize healthcare with cutting-edge, AI-powered software designed to help every hospital deliver world-class care for their patients. Our platform is already the core backbone of health systems today, transforming clinical and operational workflows at scale with the world’s first AI-native hospital information system.

This next-generation platform is a fundamental rebuild of the information infrastructure that runs health systems. All of it - from doctors, nurses, pharmacists, lab technicians, coders, billers, supply chain, and even patients - Lunar’s software powers everything, soup-to-nuts. We believe that this mission is the moon landing of healthcare - something so consequential and ambitious that most people believe it to be impossible.

Backed by Silicon Valley’s preeminent venture capital firms, we believe in the power of a high performance team of seasoned professionals operating at the peak of their abilities. We value people who are driven, curious, have sound judgement, and care about doing the best work of their careers.

We build rich, reactive interfaces in TypeScript and React, talking to our backend over GraphQL - where the UI updates the instant the underlying clinical data changes. On the backend, we've embraced Elixir for its fault tolerance, concurrency, and scalability - essential for handling real-time patient data in mission-critical settings like Emergency Departments, ICUs, and Operating Rooms.

We are looking for a Staff Frontend Engineer who's excited to tackle some of the hardest interface and interaction problems in healthcare - and do it with a small, fast-moving, and deeply mission-driven team. If you care about crafting clean, robust, intuitive interfaces and want to rebuild from scratch the software that clinicians rely on every day, we'd love to talk.

Here are some deep technical problems you may tackle in your first 6 months:

• Build a clinical design system from scratch: Design and ship a component library and design system that brings consistency, speed, and polish to every screen a clinician touches.
• Push hospital workflows into the modern age: Rethink and rewire how clinicians move through the software - and turn confusing, click-heavy workflows into fast, keyboard-driven, intuitive experiences that clinicians love, not tolerate.
• Render real-time clinical data, instantly: Build interfaces that reflect live patient data - vitals, orders, labs, alerts - the moment it changes, with no lag, in environments like the ED, ICU, and OR where a half-second matters. Architect the data layer, caching, and subscription patterns over GraphQL that make that possible.
• Make interfaces that never fail under pressure: Engineer for accessibility, resilience, and performance so the UI holds up in high-stakes, high-stress settings - including degraded networks and edge cases that would break an ordinary web app.
• Turn complexity into clarity: Take dense clinical and operational data and shape it into clear, glanceable, decision-ready interfaces for doctors, nurses, pharmacists, and administrators.
• Define the frontend from first principles: Set the patterns, state management, and rendering architecture - balancing developer velocity against the reliability bar of mission-critical software.