Software Systems Engineer, Motor Controls

Joby Motor Control Engineer

This engineer will play a key role in a small, fast-moving team and participate in architecture, design, and implementation of motor control systems within our electric-powered, fly-by-wire aircraft. This engineer will work closely with the hardware, mechanical, integration, and flight-testing teams to design, develop, test and improve system-level behaviors.

• Sensored and sensorless control of permanent magnet synchronous motors
• Advanced inverter pulse-width modulation, position and velocity estimation, current control and efficiency optimization
• Develop fault detection, isolation, and reconfiguration logic for safety critical systems
• Closed loop position control of simplex and duplex redundant servo actuation systems with redundant position sensors and multi-phase motors controlled from separate inverters
• Optimization of motor controls using MATLAB Simulink
• Develop wrappers and interfaces for the MATLAB Simulink code in C/C++
• Ensure inverter and motor systems meet performance requirements via controls algorithm development, implementation, Simulink simulation and hardware testing
• Oversee dynamometer testing and interpretation of data for controls development, validation and improvement
• Tuning and calibration of complete systems on dynamo meters, on test stands, and on the aircraft
• Unit-tests for build environment, sub-system validation testing, integration testing, flight testing, processor/hardware in the loop testing
• Decompose system level requirements to software requirements
• Develop system level actuator models and integrate with inverters and servo controls for wholistic system level understanding of performance

• B.S degree in Mechanical Engineering or relevant field and 10+ years of related technical experience (including mechanical, electrical, computer and robotics / mechatronics engineering)
• Experience with actuation systems and/or servo control on safety critical applications
• Experience developing embedded applications in C/C++, MATLAB Simulink model-based design for controls development
• Experience with basic electronics debugging tools: oscilloscope, logic analyzer, power analyzer
• Basic understanding of version control technologies
• Experience with processor/hardware in the loop (PIL/HIL) verification/debugging
• Experience creating mathematical models of servo systems for system identification, analyses and simulations
• Knowledge of electro-mechanical systems focusing on interactions between electrical and mechanical components in servo systems
• Ability to be onsite regularly in San Carlos, CA

• Advanced degree in Mechanical Engineering or relevant field
• Technical experience with aerospace actuation and controls system development
• Knowledge of control system design and principles of feedback control including PID control and advanced control techniques and their applications in the servo systems
• Knowledge of real time bare-metal firmware development
• Experience with hard, real-time interrupt-driven software development

Compensation at Joby is a combination of base pay and Restricted Stock Units (RSUs). The target base pay for this position is $154,600 - $212,600/yr. The compensation package will be determined by job-related knowledge, skills, and experience.

Joby also offers a comprehensive benefits package, including paid time off, healthcare benefits, a 401(k) plan with a company match, an employee stock purchase plan (ESPP), short-term and long-term disability coverage, life insurance, and more.

Joby is an Equal Opportunity Employer.