Sr Firmware Engineer

LITEON Technology; Seattle (WA); On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k)

Paid time off

Job summary

LITEON Technology in Seattle designs and manufactures power supplies and related hardware. We are seeking a Firmware Engineer to design, develop, and maintain embedded firmware for high-power products, working with hardware, system, and validation teams to deliver robust software solutions.

You will bring 5–10 years of embedded firmware experience, proficiency in C/C++, and a deep understanding of power electronics, with strong debugging and documentation skills.

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field.
• 5–10 years of experience in embedded firmware development, preferably in power electronics or power module products.
• Proficiency in C / C++ for embedded systems.
• Experience with microcontrollers, DSPs, or embedded processors used in power applications.
• Familiarity with power electronics systems, control concepts, and hardware-firmware interaction.
• Experience with debugging tools (e.g., JTAG, logic analyzer, oscilloscope).
• Solid understanding of power electronics and embedded system design.
• Develop and maintain firmware for AI Server PSU and Power Shelf products.
• Implement and optimize digital power control algorithms.
• Debug HW/FW interaction issues independently.
• Conduct firmware root cause analysis and failure investigation.

Responsibilities

• Design, develop, and maintain embedded firmware for power module and high-power products, including control, monitoring, protection, and communication functions.
• Collaborate with hardware and system engineers to integrate firmware with power electronics, control circuits, and communication interfaces.
• Perform firmware bring-up, debugging, and validation on prototype and production hardware.
• Support firmware implementation related to power control algorithms, system state management, fault handling, and diagnostics.
• Assist in tuning and optimizing firmware performance for reliability, efficiency, and stability of power modules.
• Develop and execute firmware test plans, including unit testing, integration testing, and system-level validation.
• Support compliance, reliability, and customer qualification testing activities.
• Create and maintain firmware design documentation, test reports, and release notes.
• Work cross-functionally with R&D, manufacturing, and field teams to support product development and issue resolution.

Skills

C / C++ for embedded systems

Embedded firmware development

Power electronics knowledge

Debugging tools

Team collaboration

Education

Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science

Job description

OVERVIEW:

LITEON designs and manufactures power supplies, keyboards, ODD, racks, enclosures, and liquid cooling for a variety of customers in the server, storage, networking, and consumer space. With headquarters in Taipei, Taiwan, and branch offices in the United States, LITEON is looking for a creative, best-in-class professional who will thrive in a fast-paced, highly technical environment. The successful candidate will have exceptional communication, leadership, and team-working skills and will be unafraid of stretching their talents in a dynamic organization where respect and knowledge are far more important than reporting structure. Collaboration with colleagues at all levels will be key to this person’s success at LITEON.

JOB DUTIES AND RESPONSIBILITIES:

A Firmware Engineer is a key contributor in the development of embedded firmware for high-power products and power modules. This role is responsible for designing, developing, and maintaining firmware that enables reliable operation, monitoring, and control of power electronics systems. The Firmware Engineer works closely with hardware, system, and validation teams to ensure robust firmware solutions aligned with product requirements and customer needs.

1.Firmware Development:

• Design, develop, and maintain embedded firmware for power module and high-power products, including control, monitoring, protection, and communication functions.
• Collaborate with hardware and system engineers to integrate firmware with power electronics, control circuits, and communication interfaces.
• Perform firmware bring-up, debugging, and validation on prototype and production hardware.

3.Control & Power Application Support:

• Support firmware implementation related to power control algorithms, system state management, fault handling, and diagnostics.
• Assist in tuning and optimizing firmware performance for reliability, efficiency, and stability of power modules.

4.Testing & Validation:

• Develop and execute firmware test plans, including unit testing, integration testing, and system-level validation.
• Support compliance, reliability, and customer qualification testing activities.

5.Documentation & Cross-Functional Collaboration:

• Create and maintain firmware design documentation, test reports, and release notes.
• Work cross-functionally with R&D, manufacturing, and field teams to support product development and issue resolution.

QUALIFICATIONS:

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field.
• 5~10 years of experience in embedded firmware development, preferably in power electronics or power module products.
• Proficiency in C / C++ for embedded systems.
• Experience with microcontrollers, DSPs, or embedded processors used in power applications.
• Familiarity with power electronics systems, control concepts, and hardware-firmware interaction.
• Experience with debugging tools (e.g., JTAG, logic analyzer, oscilloscope).
• Solid understanding of power electronics and embedded system design.
• Develop and maintain firmware for AI Server PSU and Power Shelf products.
• Implement and optimize digital power control algorithms.
• Debug HW/FW interaction issues independently.
• Conduct firmware root cause analysis and failure investigation.

8.Tech Core Knowledge:

• Embedded System Architecture
• Digital Control Theory
• AC/DC and DC/DC Conversion Principles
• Digital Power Control
• Communication protocols PMBus/ I2C/ UART/ CAN/ RS485/Ethernet

9.Strong analytical, problem-solving, and debugging skills.

10.Ability to work in a fast-paced, cross-functional development environment.

11.Strong communication skills and a collaborative team mindset.

PERSON SPECIFICATION:

• Require good communications and good interpersonal characteristics.
• Willing to learn.
• Self-motivated personality

BENEFITS:

As a full-time employee, you'll have access to LITEON’s comprehensive benefits package, which includes medical, dental, vision, 401(k), and paid time off in compliance with US labor requirements.

ADDITIONAL DETAILS:

LITEON is committed to equal opportunities for all qualified individuals, and we welcome a diverse range of applicants.

Please note that the responsibilities and duties of the position may change with or without notice, and we are committed to providing reasonable accommodation for individuals with disabilities to perform their essential functions.