Embedded Firmware Test Engineer – IoT (Power-Efficient)

Cambridge Mobile Telematics; Cambridge (MA); On-site; USD 86,000 - 107,000; Full time

Benefits offered by this job

Unlimited PTO

RSUs equity

Full benefits including medical,Dental

401k match

Summer Fridays

Flexible scheduling

Job summary

Cambridge Mobile Telematics is seeking a Software Engineer in Test II, Embedded Firmware, to build and maintain test infrastructure for firmware validation on microcontroller-based devices. You will write automated tests in Python, work with C code, and execute tests on Linux servers and real hardware.

The role blends firmware knowledge with software testing practices in an IoT environment. You’ll collaborate globally, participate in CI workflows, and gain exposure to wear-level power management

Qualifications

• Bachelor’s degree or equivalent in Computer Science, Electrical Engineering, or related field.
• 2+ years of relevant working experience.
• Proficiency in Python programming; willingness to read and understand C.
• Comfortable working on the Linux command-line and performing basic system administration tasks.
• Experience writing and running automated tests, ideally in a CI environment.
• Familiarity with git and standard development workflows.
• Familiarity with Docker and cloud platforms (e.g., AWS) is a plus.

Responsibilities

• Use independent judgment and responsibility to contribute to the development and maintenance of test infrastructure for firmware validation under the guidance of senior engineers
• Execute and monitor firmware test runs across simulated firmware on Linux servers and real firmware on device
• Write and maintain automated tests to improve coverage and enhance failure visibility
• Use Python for test harnesses and scripting, with exposure to C for understanding firmware under test
• Use Linux for development and git for source code management
• Learn and apply knowledge of embedded microcontroller systems as it relates to firmware testing
• Assist with test systems attached to equipment capable of measuring parameters like power usage Gain familiarity with microcontroller circuit boards (e.g., Arduino-like devices), multimeters, benchtop power supplies, and electronic schematics
• Support web services for test coordination and result display, leveraging knowledge of REST APIs and web application development
• Triage and investigate test failures, distinguishing between firmware regressions and infrastructure issues
• Complete any additional tasks as they arise

Skills

Python programming

C (read/understand)

Linux command-line

CI testing

Git

Debugging

Cloud platforms

Education

Bachelor’s degree or equivalent in CS/EE or related field

Tools

Docker

AWS

Job description

Cambridge Mobile Telematics is seeking a Software Engineer in Test II, Embedded Firmware, to build and maintain test infrastructure for firmware validation on microcontroller-based devices. You will write automated tests in Python, work with C code, and execute tests on Linux servers and real hardware.

The role blends firmware knowledge with software testing practices in an IoT environment. You’ll collaborate globally, participate in CI workflows, and gain exposure to wear-level power management