Senior Unity Engineer: Robotics Simulation & XR

Intuitive Surgical, Inc.; Sunnyvale (CA); On-site; USD 180,000 - 259,000; Full time

Job summary

Intuitive Surgical, Inc. in Sunnyvale, CA is seeking a Senior Unity Engineer to specialize in the Unity physics system and advanced kinematics for our robotic simulation platform.

You will balance realism, performance, maintainability and delivery timelines while shipping high-quality software. The role emphasizes integration with real-world robotic behavior and cross-functional collaboration onsite.

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.
• Proven experience joining and contributing to a large, existing production codebase.
• Strong understanding of software architecture, object-oriented design, and maintainable code practices.
• 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 the digital twin robot codebase.
• Profile, diagnose, and optimize performance across CPU, GPU, and memory for XR performance.
• Collaborate with engineers, designers, product owners, and SMEs 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

5+ years experience

C# and C/C++

3D physics simulation

Kinematics

3D math

Multithreading/SIMD

Production codebase

OO design

Education

Bachelor's degree in CS or similar

Job description

Intuitive Surgical, Inc. in Sunnyvale, CA is seeking a Senior Unity Engineer to specialize in the Unity physics system and advanced kinematics for our robotic simulation platform.

You will balance realism, performance, maintainability and delivery timelines while shipping high-quality software. The role emphasizes integration with real-world robotic behavior and cross-functional collaboration onsite.