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

We’re 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, we’re 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. We’re well-funded, commercially progressing, and building a team that blends creativity with deep technical execution.

• 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.

• 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 Type Script 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.

• 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 Type Script 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.

• Human Machine Interface (HMI) or Human Robot Interface (HRI) experience.
• Robotics/device control interface design.
• Understanding of real-time systems, Web Sockets, or streaming data.
• Experience with physics engines (PhysX, Bullet, Box2D).
• 3D modeling experience.
• Mobile platform experience (React Native, Swift
  
  UI, Flutter).
• Startup experience.
• CS degree.

• Research‑only focus with minimal shipped product.
• Pure designer with no ability to implement.
• Pure frontend engineer with no UX instincts.

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