Senior Unity Engineer — Robotics Simulation & Physics

Intuitive Surgical, Inc. in; Sunnyvale (CA); On-site; USD 153,000 - 259,000; Full time

Job summary

Intuitive Surgical, Inc. is seeking a Senior Unity Engineer focused on the Unity physics system and advanced kinematic chains for digital twin robotics. You will balance realism, performance, and maintainability while shipping high-quality software.

Applicants should have 5+ years of software engineering experience, strong C#/C++ skills, and deep 3D physics understanding. This onsite role requires proximity to Sunnyvale, CA or Peachtree, GA offices and collaboration across engineering teams.

Qualifications

• 5+ years of professional software engineering experience.
• Bachelor's degree in computer science or similar field.
• Strong experience using C# and C/C++.
• Deep expertise of 3D simulation of one or more physics phenomena.
• Experience with multi-end-effector, constraint-based, or redundant kinematic systems.
• Deep understanding of 3D math: vectors, matrices, quaternions, jacobians, etc.
• Understanding of fixed timestep simulation, interpolation, solver iterations, sub-stepping, and numerical stability, as well as multithreading, SIMD, and other optimization techniques.
• Located within an hour of our Sunnyvale, CA or Peachtree, GA offices.

Responsibilities

• Evaluate the real-world robot code and apply it to optimize, improve, and expand the capabilities of our existing digital twin robot codebase.
• Profile, diagnose, and optimize performance across CPU, GPU, and memory for acceptable XR performance.
• Collaborate with engineers, designers, product owners, and subject matter experts to translate real-world robotic behavior into simulation.
• Evaluate technical tradeoffs and make pragmatic implementation decisions that support product goals and delivery schedules.
• Contribute to architectural decisions, coding standards, and long-term platform maintainability.

Skills

C#

C/C++

3D simulation

Kinematics

3D math

Multithreading/SIMD

Production codebase

OO design

Location proximity

Unity

Education

Bachelor's degree in computer science or similar field

Tools

Unity

Job description

Intuitive Surgical, Inc. is seeking a Senior Unity Engineer focused on the Unity physics system and advanced kinematic chains for digital twin robotics. You will balance realism, performance, and maintainability while shipping high-quality software.

Applicants should have 5+ years of software engineering experience, strong C#/C++ skills, and deep 3D physics understanding. This onsite role requires proximity to Sunnyvale, CA or Peachtree, GA offices and collaboration across engineering teams.