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# Embedded Software (Firmware) Design Engineer - Mid / Senior level

- **Company:** Tri-Tec Manufacturing, LLC
- **Location:** Kent, WA, United States
- **Experience:** Experienced
- **Salary:** $125,000 - $140,000
- **Contract:** Permanent contract
- **Skills:** Board Bringup, C (Programming Language), ARM Architecture, Fieldbus, Configuration Management, Communications Protocols, Computer Engineering, Software Debugging, Embedded Software, Firmware, Modbus, Profibus, RS-232, Signal Integrity, Universal Asynchronous Receiver/Transmitter, Data Processing, Serial Peripheral Interface, PIC Microcontroller, Hardware Testing, Information Technology, Software Coding
- **Published:** October 20, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=37bb3685dc90ae19

## About the Role

* Seven to ten years of embedded-software design experience
 * Fluency in the C programming language
 * Experience writing code for embedded microprocessors and microcontrollers
 * Strong understanding of debugging fundamentals and use of debugging tools
 * Experience developing sensor-data acquisition pipelines and implementing sensor-data processing algorithms for embedded systems
 * Strong electrical and PCB-level knowledge suitable for an R and D environment including schematic interpretation, signal-integrity considerations, and hardware bring-up
 * Understanding of standard communication protocols and microcontroller peripherals including GPIO, I2C, SPI, UART RS-232 and RS-485, CAN, timers, counters, PLLs, reset generators, clocking, power management, ADCs, and PWM
 * Ability to work collaboratively to solve complex engineering problems
 * Bachelor's degree in Electrical Engineering (preferred), Computer Engineering (second), Computer Science (third)
 * Preferred Experience
 * NXP ARM processor
 * Designing/testing to the requirements of quality and reliability standards such as DO-178, SS-473
 * Fieldbus (Profibus, Modbus) and fiberoptic communications
 * Process control algorithms (PID etc., implementation/optimization)
 * Configuration Management practices and tools
 * Code verification (best practices, design for verification, verification frameworks)
 * Electromechanical actuators and motion control systems
 * In-depth troubleshooting and debugging of assembly level code, off-board/inter-IC communication, signal integrity, power, PCB, and other hardware related problems
 * Experience in hands-on R&D environments including prototyping, bench testing and iterative design., * US citizenship is mandatory due to defense contracts requirements. Background check will be performed.
 * Minimum bachelor's degree in Electrical Engineering (preferred), Computer Engineering (second), Computer Science (third)
 * 7 to 10 years of Embedded Software Design work experience
 * Must have strong English reading and writing skills