Software Systems Engineer, Motor Controls

Joby Aviation•San Carlos, CA

11h•$109,200 - $150,100•Onsite

About The Position

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.

Requirements

B.S degree in Mechanical Engineering or relevant field and 2+ 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
Ability to be onsite regularly in San Carlos, CA

Nice To Haves

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

Responsibilities

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 dynamometers, 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