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# Principal Software Engineer

- **Company:** Werfen
- **Location:** Bedford, MA, United States
- **Salary:** $165,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Board Bringup, Software Bug Management, CAN Bus, Configuration Management, Code Review, Software Debugging, Memory Management, Embedded Software, Firmware, Joint Test Action (IEEE Standards), Real-Time Operating Systems, Requirements Management, Software Engineering, Universal Asynchronous Receiver/Transmitter, Enterprise Software Applications, PIC Microcontroller, Information Technology, Bare Metal
- **Published:** September 30, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3412489207&tx=KR10201LFU&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

Min Knowledge & Experience Required for the Position:

 * 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.

Skills & Capabilities:

 * 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

## Description

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.

Responsibilities:

Key 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