Sr. Embedded Systems Firmware Engineer

Apex Bridge Talent Group; Irvine (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Apex Bridge Talent Group is seeking a Sr. Embedded Systems Firmware Engineer for an on-site role in Irvine, CA. Direct hire/full-time (contract possible). You will architect, design, and implement application-layer firmware for complex real-time systems.

Requirements include 5+ years in embedded C/C++, RTOS, system-level control logic, CAN/SPI/Ethernet, and model-based design with MATLAB/Simulink; experience with SIL/HIL testing and cross-boundary integration is essential.

Qualifications

• 5+ years of embedded control software for real-time systems.
• Strong proficiency in embedded C/C++ and real-time software architecture.
• Experience designing system-level control logic, state machines, and sequencing.
• Hands-on experience with CAN, SPI, Ethernet, or ARINC (825/664).
• Experience with model-based design tools (MATLAB/Simulink) and SIL/HIL testing.
• Proven ability to integrate and debug software across hardware, firmware, and system boundaries.
• Strong analytical and system-level problem-solving abilities.

Skills

Embedded C/C++

RTOS

State machines

System-level design

CAN

SPI

Ethernet

ARINC 825/664

MATLAB/Simulink

SIL/HIL testing

Cross-boundary integration

Tools

MATLAB/Simulink

Job description

Business Title: Sr. Embedded Systems Firmware Engineer

Location: Irvine, CA (100% Onsite)

Job Type: Direct hire / Full-time (Contract is also an option)

Note:

Embedded System Firmware engineer - should be able to architect, design, and implement application layer. If this person has similar experience in automotive propulsion systems or aerospace propulsion system, then it is good fit. This is not web-based design, motor control, or only BMS control engineer - it is overall system engineer.

Required Qualifications:

• 5+ years of experience developing embedded control software for complex real-time systems
• Strong proficiency in embedded C/C++ and real-time software architecture
• Experience designing system-level control logic, state machines, and sequencing
• Hands-on experience with communication protocols such as CAN (and derivatives), SPI, Ethernet, or ARINC (825/664)
• Experience with model-based design tools (MATLAB/Simulink) and SIL/HIL testing
• Proven ability to integrate and debug software across hardware, firmware, and system boundaries
• Strong analytical skills and system-level problem-solving ability.

Preferred/Bonus Experience:

• Experience with TI C2000, NXP, or similar real-time control microcontrollers
• Prior work on safety-critical or regulated systems (aerospace, automotive, industrial)
• Exposure to certification-oriented development processes (DO-178C, ARP4754/4761, ISO 26262 concepts)
• Experience defining software architectures and development processes for growing teams
• Background spanning motor control, BMS, or vehicle control systems
• Experience supporting production launch, field issues, and system-level validation