Firmware Engineer III

The Firmware Engineer III works with cross-functional teams to develop embedded firmware and related software solutions for ZincFive's NiZn-based UPS products and supporting technologies. This role supports product development from concept through validation and release, with responsibility for delivering reliable, high-quality solutions that meet program, performance, and schedule objectives. This position will independently lead significant firmware features and bounded subsystems, contribute to firmware and system architecture, and drive technical execution within established subsystem and program plans. This position will work onsite at ZincFive headquarters in Tualatin, Oregon and reports to the Lead Software Engineer.

Firmware Engineer III Job Duties

Responsible for design and implementation of firmware running on embedded platforms
Lead development of significant firmware features, control algorithms, and bounded subsystems
Contribute to firmware and system architecture design reviews and technical decision-making
Ensure solutions meet or exceed each development phase gate requirement
Develop automated unit, integration, and functional tests to verify operational correctness of new code
Write performance analysis code, evaluate results, and recommend improvements
Participate in manual testing cycles to verify application features and subsystem functionality
Perform ongoing defect identification, debugging, and resolution
Support sustaining engineering issues including RCCA (Root Cause & Corrective Action), and service and support calls
Adhere to the PLM gate process and ensure timely completion of action items
Take ownership of assigned projects and technical areas and communicate progress, risks, and status to engineering leadership and program stakeholders
Escalate open issues in a timely manner to mitigate project delays, and help drive resolution plans
Work with small cross-functional teams (mechanical, electrical, software, product management) on new product development and continuous improvement
Mentor junior engineers through code reviews, design feedback, and technical guidance
Help improve coding practices, documentation quality, and engineering consistency across the team
Support subsystem integration, lab bring-up, and validation activities across development and release phases

Job Requirements

Bachelor’s degree in computer science, computer engineering, electrical engineering, or related field
4+ years of experience in a related field
Experience with real-time, optimized C development
Experience with embedded processors and microcontrollers
Experience interpreting schematics, operating lab instruments, and using logic analyzers
Familiarity with software architecture, design patterns, and coding guidelines for best practices
Experience developing and debugging firmware in embedded systems
Experience developing automated tests or validation tools for firmware verification
Ability to independently own technical workstreams and deliver high-quality solutions with limited oversight
Technical documentation skills
Demonstrates effective communication, organization, collaboration, and problem-solving skills
Proficiency with multiple programming languages (C/C++, JavaScript, Python)
Development experience with SoC/ARM/Microchip processors and FPGAs
Experience applying secure development lifecycle practices to embedded products
Experience implementing or supporting embedded security features such as secure boot, signed firmware update, access control, or secure communications
Experience with optimization and debugging tools and techniques
Ability to understand schematics and debug circuit boards
Experience developing in an RTOS environment

Preferred Qualifications

Master’s degree in computer science, computer engineering, electrical engineering, or related field
Familiarity with industrial cybersecurity principles and standards such as IEC 62443
Experience with battery systems, power electronics, or other embedded control systems

Key Competencies

Attention to detail
Excellent communication skills - verbal and written
Good judgment with solid decision making
Customer service orientation
Teamwork and collaboration
Continuous improvement

Physical Requirements And Working Conditions

Work involves sitting, repetitive motion, occasional walking, and lifting up to 15 pounds
Normal office/lab environment
Requires close visual acuity and ability to distinguish colors
Must be able to wear standard PPE when required

Salary offers will depend on factors that include the location you work from, your level, education, training, specific skills, years of experience and comparison to other employees already in this role.

In addition, the successful candidate for this position will become eligible for a comprehensive set of outstanding benefits, including medical, dental, vision, life insurance, 401k, paid sick time, paid time off for vacation, paid holidays, paid community service days, professional/personal learning program, and applicable state/federal paid family leave.

ZincFive is committed to employing a diverse workforce. As an Equal Opportunity and Affirmative Action Employer all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status. We maintain a safe workplace and perform pre-employment testing. ZincFive is a participant in E-Verify and receives employment authorization of new hires through Social Security and the Department of Homeland Security databases.
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