Independent Contractor Software Developer Jobs in Michigan

Hybrid: This role is categorized as hybrid. This means the successful candidate is expected to report to Milford, Michigan three times per week, at minimum.

At General Motors, our product teams are redefining mobility. Through a human‑centered design process, we create vehicles and experiences that are designed not just to be seen, but to be felt. We’re turning today’s impossible into tomorrow’s standard —from breakthrough hardware and battery systems to intuitive design, intelligent software, and next‑generation safety and entertainment features.

Every day, our products move millions of people as we aim to make driving safer, smarter, and more connected, shaping the future of transportation on a global scale.

In‑House HWIO (Hardware Input/Output) Team is part of the Mechatronics Software Platform organization, driving GM’s Software Defined Vehicle (SDV) strategy. We develop and test low‑level embedded software that is portable and scalable across multiple automotive applications. As a member of the HWIO Engineering group, you’ll work with cutting‑edge systems and designs, leveraging both AUTOSAR MCAL configuration tools and hand‑coding in C. A software developer in the HWIO team will be responsible for designing, developing, implementing, and testing the low‑level hardware input/output (HWIO) software for various microcontrollers. This means creating the best software solution with the understanding of requirements, microcontroller specification, and GM coding standard. The developer will also make sure the solution is tested robustly by creating testing strategies and documenting the design.

We are seeking a skilled Senior Embedded Software Developer to design, develop, implement, and test low‑level HWIO software for various microcontrollers. In this role, you will collaborate with cross‑functional teams, create robust testing strategies, and ensure compliance with GM’s coding standards.

• Design, develop, and test low‑level embedded software for functionalities such as RTOS, Memory, Fault Detection, Power Management, LIN, DMA, PWM, Discrete I/O, and Analog I/O.
• Utilize MCAL configuration tools or hand‑code software solutions.
• Define and execute testing strategies to verify compliance with technical requirements.
• Perform independent code reviews and provide constructive feedback.
• Collaborate with teams across hardware, calibration, and requirements groups.
• Troubleshoot and solve complex issues with strong analytical skills.
• Document designs, test cases, and results thoroughly.

• Bachelor’s degree in Computer Engineering, Computer Science, Electrical Engineering, or related field.
• 5+ years of experience in embedded software development (Embedded C).
• Expertise in AUTOSAR MCAL configuration and Complex Driver development.
• Hands‑on experience with microcontrollers (ARM, PowerPC, Renesas).
• Proficiency with RTOS for multi‑core systems.
• Strong understanding of schematics and basic electrical circuits.
• Experience with root cause analysis involving integrated basic and application software.
• Familiarity with debugging tools (Lauterbach, ETAS INCA, CANalyzer) and lab equipment (oscilloscopes).
• Ability to work independently under tight schedules.
• Excellent oral and written communication skills.
• Strong interpersonal skills to collaborate effectively with others.

• Master’s degree in Computer Engineering, Computer Science, Electrical Engineering, or related field.
• 8+ years of experience in embedded software development (Embedded C)
• Low level SW experience in these core / micro:
  • ARM Cortex‑R52 Core
  • ARM Cortex‑M7 Core
  • NXP S32Kxx micro
• Knowledge of vehicle electrical systems.

GM offers a variety of health and wellbeing benefit programs. Benefit options include medical, dental, vision, Health Savings Account, Flexible Spending Accounts, retirement savings plan, sickness and accident benefits, life insurance, paid vacation & holidays, tuition assistance programs, employee assistance program, GM vehicle discounts and more.

This job may be eligible for relocation benefits.