Principal Software Engineer

Werfen•Bedford, MA

1d•$165,000 - $200,000•Onsite

About The Position

We are seeking a Principal Embedded Software Engineer with deep expertise in motion control systems, real-time embedded software, and low-level firmware development. This role focuses on designing, developing, and optimizing firmware for microcontroller-based systems that interface with motors, sensors, and real-time peripherals. The ideal candidate works comfortably at the boundary of hardware and software and has strong hands-on debugging skills.

Requirements

Bachelor's Degree plus a minimum of 10 years of related experience or Master's Degree plus a minimum of 8 years of related experience or waiver based on experience. Degree should be in a technical discipline such as Chemistry, Math, Physics, Engineering, or Computer Science.
Proficiency with a personal computer and software packages.
Ability to administer software engineering tools; configuration management, requirements management, and defect management.
Ability to operate instrumentation.
Possesses strong written and oral communications skills.
Ability to work in a team environment of software developers and testers.
Proficient in code languages found in product development.

Responsibilities

Design, develop, and maintain embedded firmware for motion control systems using microcontrollers
Develop software on bare-metal and RTOS-based systems with strict real-time constraints
Implement and optimize stepper motor control, sensor interfaces, and deterministic control loops
Design and implement low-level drivers, including: DMA drivers, Interrupt service routines (ISRs), Timer, GPIO, and peripheral drivers
Architect and debug RTOS-based systems, including task scheduling, synchronization, memory usage, and ISR interactions
Collaborate closely with hardware engineers to read and interpret schematics and datasheets, perform hardware bring-up and board-level debugging
Interface with and debug embedded peripherals such as: SPI, I²C, CAN bus, UART, PWM, GPIO
Apply strong knowledge of computer architecture, including: CPU pipelines, cache behavior, memory hierarchies, microcontroller buses and peripheral architectures
Perform advanced debugging using: JTAG-based debuggers, Oscilloscopes, Logic analyzers, Function generators
Optimize firmware for performance, reliability, and real-time determinism
Create and maintain technical documentation, including design descriptions and test procedures
Mentor junior engineers and participate in technical design and code reviews