User Interface Developer (Hybrid UX Engineer / Interactive Systems Developer)

• User Interface Developer (Hybrid UX Engineer / Interactive Systems Developer)* Compensation: $150K-$250K base + equity (no bonus)* Location: San Francisco, CA* Hiring Target: 1* Work Policy: 5 days/week in-office* Sponsorship: Visa transfers supported (not open to OPT)* Stage: Seed-stage surgical robotics company

  $14M raised

Who Are We? Were building autonomous surgical robots designed to dramatically shorten the learning curve for complex procedures. By combining robotics, ML, computer vision, and intuitive human-machine interfaces, were redefining how surgeons interact with advanced surgical systems.

Our mission is bold and tangible: make high-quality surgical care more accessible worldwide by lowering the technical barrier for surgeons. Were well-funded, commercially progressing, and building a team that blends creativity with deep technical execution.

• What’s in It for You?* Work on real-world products that directly impact patient outcomes.* Design and build interfaces that control surgical robots in real time.* Join a fast-moving, well-funded seed-stage company with strong commercial traction.* High autonomy and influence in a small frontend team (2 people).* Competitive base salary plus meaningful equity.* Relocation assistance ($5K-$10K).* Opportunity to grow into technical leadership as the team scales.

• What Will You Do?* Design and implement intuitive UI/UX for robotic control systems on touchscreen devices (iPads and similar).* Build interactive 2D/3D visualizations and simulations using frameworks such as Three.js, Unity, Unreal, or Babylon.js.* Gather user requirements directly from surgeons and clinical stakeholders.* Conduct hands-on user research and translate findings into product decisions.* Prototype rapidly and iterate on interfaces blending gaming, robotics, and real-time systems.* Develop performant web applications in TypeScript using modern frontend frameworks.* Integrate real-time data streams, sensor input, and control systems into interactive interfaces.* Travel up to once per month to observe product use in surgical settings.

• What Will You Need?* Hybrid profile: designer who can code OR engineer with strong UX instincts.* Strong user research and requirements gathering experience.* Hands-on experience shipping interactive products (internal tools acceptable; research prototypes alone are not sufficient).* Experience with game development or interactive 3D systems (Unity, Unreal, or similar).* Strong TypeScript and modern frontend experience (React, Vue, Lit, Web Components, HTML/CSS).* Familiarity with 2D/3D rendering libraries or engines (Three.js, Babylon.js, Godot, Pixi.js).* Motion/animation experience.* Comfort viewing live surgical procedures during site visits.

User Interface/Experience (UI/UX), Systems Engineering, User Interface/Experience (UI/UX), Robotics, Systems Engineering, Computer Vision, Human Machine Interface (HMI), Team Building, Team Lead/Manager, Technical Leadership, * Strongly Preferred* Human Machine Interface (HMI) or Human Robot Interface (HRI) experience.* Robotics/device control interface design.* Understanding of real-time systems, WebSockets, or streaming data.* Experience with physics engines (PhysX, Bullet, Box2D).* 3D modeling experience.* Mobile platform experience (React Native, SwiftUI, Flutter).* Startup experience.* CS degree.

• Must Not Have* Research-only focus with minimal shipped product.* Pure designer with no ability to implement.* Pure frontend engineer with no UX instincts.

Role Balance Approximately 60% design / 40% coding (flexible depending on candidate strength). Portfolio must demonstrate both design thinking and implemented work.