Principal Software Engineer
Werfen· Medical Devices· Oct 6, 2026 · 22d ago
Bedford, MA, United States
In office
Full-time
Principal
$141K–$216K est.
10+ years exp
Job description
Werfen
Werfen is a growing, family-owned, innovative company founded in 1966 in Barcelona, Spain. We are a worldwide leader in specialized diagnostics in the areas of Hemostasis, Acute Care Diagnostics, Transfusion, Autoimmunity, and Transplant. Through our Original Equipment Manufacturing (OEM) business line, we research, develop, and manufacture customized assays and biomaterials. We operate directly in 30 countries, and in more than 100 territories through distributors. Our Headquarters and Technology Centers are located in the US and Europe, and our workforce is more than 7,000 strong.
Our success comes from a specific focus in these rapidly evolving diagnostic areas, our commitment to customers, and our dedication to innovation and quality. We’re passionate about providing healthcare professionals the most valuable and complete solutions to improve hospital efficiency and enhance patient care.
Position Summary
Overview
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.
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
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
Travel Requirements:
The annual base salary range for this role is currently $165,000 to $200,000 range. Individual employee compensation will ultimately depend on factors including education, relevant experience, skillset, knowledge, and particular business needs.
This role is eligible for medical, dental, and vision insurance, 401k plan retirement benefits with an employer match, as well as paid vacation and sick leave. Our sales roles are eligible for participation in a commission plan and our management, and select professional roles, are eligible for a performance-based bonus.
If you are interested in constantly learning and being challenged on a daily basis we encourage you to submit your resume or CV.
Werfen is an Equal Opportunity employer and is committed to a diverse workplace. Werfen strictly prohibits unlawful discrimination, harassment or retaliation based upon an individual’s race, color, religion, gender, sexual orientation, gender identity/expression, national origin/ancestry, age, mental/physical disability, medical condition, marital status, veteran status, or any other protected characteristic as defined by applicable state or federal law. If you have a disability and need an accommodation in relation to the online application process, please contact NAtalentacquisition@werfen.com for assistance.
We operate directly in over 30 countries, and in more than 100 territories through distributors. Annual revenue is approximately $2 billion and more than 7,000 employees around the world comprise our Werfen team.
www.werfen.com
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Benefits
Benefits detected in the listing.
Dental
Vision
401k