This job post has expired on April 10, 2026. It is likely that the position has already been filled.
Senior Embedded Firmware Engineer at Mercor
posted 7 months agoSenior Embedded Firmware Engineer | $95–130/hr | Redmond, WA (On-Site)
A prestigious tech company's AR/VR research division is seeking a seasoned Embedded Firmware Engineer to develop cutting-edge firmware for a custom System on Chip (SoC). This is a full-time, W-2 role administered through Cincinnatus, placing you directly within a high-impact client team working on next-generation augmented and virtual reality hardware.
Key Responsibilities
- Develop firmware to integrate custom image sensors with a microcontroller unit (MCU)
- Build firmware interfaces for hardware acceleration blocks and sensors including IMU, barometers, and magnetometers
- Design and implement bootloaders for embedded systems
- Create test applications to interface with a wide variety of peripherals
- Validate firmware against hardware in a hands-on testing environment
- Produce thorough design documentation and conduct performance analysis
Required Qualifications
- 8+ years of firmware or embedded software development experience using C/C++
- 2+ years developing drivers for camera sensors on new integrated circuits (ICs)
- 2+ years developing firmware for multi-core SoCs or MCUs
- Experience with Zephyr OS, Embedded Linux, or other real-time operating systems (RTOS)
- Ability to work autonomously in a fast-paced, dynamic environment
- Bachelor's degree in Computer Science, Software Engineering, or a related field
Preferred Qualifications
- Familiarity with MIPI C-PHY and image sensor integration
- Knowledge of communication protocols: I3C, SPI, UART, USB
- Experience with Embedded Linux kernel drivers and file systems
- Familiarity with bootloaders on small MCUs and larger SoCs
- Experience with low-power optimization of embedded systems
- Strong technical writing skills
- Master's degree preferred
About the Employer
This role is employed through Cincinnatus, an enterprise staffing company that partners with leading technology firms to place highly skilled professionals in full-time and long-term contingent roles. Cincinnatus serves as the employer of record, providing W-2 employment, payroll, benefits, and compliance while embedding you directly within the client's team.
Cincinnatus is an Equal Employment Opportunity employer and is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the hiring process.
How to apply for this role
- Upload your resume — keep it up-to-date and in English. Mercor will auto-fill your profile from it.
- Complete the AI interview — a 15-minute conversation about your experience. Be ready to discuss specific projects and challenges you've solved.
- Submit your application — only about 20% of applicants finish all the steps, so completing yours puts you well ahead.