Sr. Firmware Engineer - MA

Nexiva Inc; Taunton (MA); On-site; USD 120,000 - 160,000; Full time

Job summary

General Dynamics Mission Systems in Taunton, MA is seeking a Sr. Firmware Engineer to own an existing firmware platform and drive its evolution in a defense/aerospace context.

The contract is onsite only, 6–12 months with potential extension, and includes an interview process with an HM, local onsite or MS Teams for non-local candidates. You will develop and debug C/C++ on ARM Cortex-M, run RTOS-based software, integrate firmware with hardware interfaces (SPI, I2C, UART, GPIO), and perform bench

Qualifications

• Active DoD Secret Clearance required.
• US Citizenship required.
• 6–8+ years of firmware/embedded experience.
• Strong C/C++ programming.
• Hands-on ARM Cortex-M microcontrollers.
• RTOS experience.
• Embedded protocols: SPI, I2C, UART, GPIO.
• ADC, PWM, Timers.
• Strong firmware + hardware integration knowledge.
• Ability to independently make technical decisions.

Responsibilities

• Own and maintain an existing firmware platform.
• Write and debug C/C++ on ARM Cortex-M.
• Work with RTOS and hardware interfaces.
• Conduct bench testing on hardware.
• Drive and communicate technical decisions to the team.

Skills

C/C++ programming

ARM Cortex-M

RTOS experience

Firmware development

US Citizenship

US DoD clearance

Independent decision making

SPI/I2C/UART

Tools

Oscilloscope

Logic analyzer

Multimeter

JTAG/SWD debugging

Job description

Title: Sr. Firmware Engineer

Client: General Dynamics Mission Systems
Location: Taunton, MA 100% Onsite
Duration: 6 12 months, potential extension

Interview: Initial phone with HM followed by onsite for local candidates or a MS Teams panel interview for non-local candidates

Must Have:

• Active DoD Secret Clearance
• U.S. Citizenship
• 6 8+ years relevant Firmware/Embedded experience
• Strong C/C++ programming
• Hands-on ARM Cortex-M microcontrollers
• RTOS experience
• Embedded protocols: SPI, I2C, UART, GPIO
• ADC, PWM, Timers
• Strong firmware + hardware integration knowledge
• Ability to independently make technical decisions

Strong Plus:

• Bench-level debugging/testing
• Oscilloscope, logic analyzer, multimeter
• JTAG/SWD debugging
• Ultra-low-power embedded systems
• Defense/Aerospace or other mission-critical products
• Experience evaluating an existing firmware codebase and deciding whether to maintain, refactor, or rewrite

Ideal Candidate:

A senior hands-on embedded/firmware engineer who can own an existing firmware platform, write/debug C/C++ on ARM Cortex-M, work with RTOS and hardware interfaces, perform bench testing, and confidently drive technical decisions.