Spacer Robotics · 16 hours ago
Mechanical / Robotics Engineering Intern
San Francisco, CA
Internship
Onsite
InternSpacer Robotics is developing an autonomous rebar tying robot for construction sites, and they are seeking a Mechanical / Robotics Engineering Intern. The role involves working with the engineering team to design, prototype, assemble, and test robotic mechanisms and mechatronic subsystems, gaining exposure to the full robotics development cycle.
Robotics
Responsibilities
Design mechanical parts and assemblies in CAD (SolidWorks, Fusion 360)
Prototype mechanisms for gripping, feeding, cutting, and tying wire
Select motors, gearboxes, bearings, fasteners, springs, and structural components
Build and assemble robot subsystems and test fixtures
Perform bench testing and characterize force, speed, accuracy, backlash, and durability
Integrate actuators, encoders, limit switches, force sensors, and other sensors into mechanisms
Assist with motor control tuning (PID, current/velocity/position control)
Support integration with embedded controllers and robot compute platform
Help bring up hardware in ROS / ROS2 (launch files, topics, TF, basic debugging)
Participate in system-level integration between mechanical hardware, electronics, and software
Help debug electromechanical issues (misalignment, noise, vibration, wiring faults, grounding)
Design and execute experiments to validate mechanisms
Analyze results and propose design improvements
Iterate quickly based on test and field feedback
Document designs, test results, and assembly procedures
Qualification
Required
Currently pursuing or recently completed degree in Mechanical Engineering, Robotics, Mechatronics, or related field
Experience with CAD and mechanical design
Hands-on prototyping experience
Basic understanding of robotics fundamentals (kinematics, actuators, sensors)
Familiarity with at least one programming language (C/C++)
Comfortable working in Linux environment
Experience with microcontrollers (Arduino, STM32, ESP32, etc.)
Experience with rapid prototyping (3D printing, laser cutting, CNC)
Experience with robotics competitions or projects
Basic electronics skills (reading schematics, using multimeter)
Preferred
Builder mindset with strong curiosity
Comfortable with ambiguity and fast iteration
Strong problem-solving skills
Willingness to work across mechanical, electrical, and software domains
Ownership mentality
Company
Spacer Robotics
Next-Generation AI Robots for Construction
Founded in 2025
2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase