Bare-Metal Bootloader Expert

Pentangle Tech Services | P5 Group; Michigan; On-site; USD 80,000 - 100,000; Part time

Job summary

A technology firm in Belmont, MI seeks a Mid-Senior level engineer to design secure bootloaders for automotive ECUs, requiring 5–10 years of experience. The candidate must be proficient in C/C++ and have expertise with NXP S32K3 and STM32U5 microcontrollers. Responsibilities include firmware updates, Ethernet stack integration, and collaboration with cybersecurity teams. A Bachelor's degree in a related field is required along with a contract employment type. Compensation ranges from $80,000 to $100,000.

Qualifications

• 5–10 years of experience in bootloader development for embedded or automotive platforms.
• Proficiency in C/C++ for low-level and bare-metal development.
• Strong hands-on experience with NXP S32K3, STM32U5, and Realtek MCUs.

Responsibilities

• Design and implement bare-metal bootloaders for automotive ECUs focused on security, speed, and reliability.
• Develop and maintain secure firmware flashing and update mechanisms.
• Work with microcontrollers for system bring-up and low-level bootloader design.

Skills

Bootloader development

C/C++ programming

Ethernet protocols

Firmware security

Debugging skills

Education

Bachelor’s or Master’s degree in Electrical Engineering

Tools

S32 Design Studio

STM32CubeIDE

Job description

Job Responsibilities

• Design and implement bare‑metal bootloaders for automotive ECUs focused on security, speed, and reliability.
• Develop and maintain secure firmware flashing and update mechanisms, including OTA and diagnostic updates.
• Work with NXP S32K3, STM32U5, and Realtek microcontrollers for system bring‑up and low‑level bootloader design.
• Integrate and validate Ethernet‑based communication stacks, including DoIP.
• Implement secure boot and cryptographic validation for firmware images.
• Collaborate with software integration, system, and cybersecurity teams to meet technical and safety requirements.
• Perform debugging, performance tuning, and optimization on embedded targets.
• Prepare detailed technical documentation, design specifications, and test plans.

Required Skills & Experience

• 5–10 years of experience in bootloader development for embedded or automotive platforms.
• Proficiency in C/C++ for low‑level and bare‑metal development.
• Strong hands‑on experience with NXP S32K3, STM32U5, and Realtek MCUs.
• Excellent understanding of Ethernet, TCP/IP, and DoIP protocols.
• Proven experience in secure boot, firmware encryption, and digital signature validation.
• Knowledge of AUTOSAR, ISO 14229 (UDS), and ISO 21434 (Cybersecurity) is a plus.
• Familiarity with hardware bring‑up, MCU peripherals, and boot sequence architectures.
• Experience using embedded development tools and IDEs such as S32 Design Studio or STM32CubeIDE.

Preferred Qualifications

• Experience with Over‑The‑Air (OTA) update frameworks.
• Knowledge of CAN, LIN, and other automotive communication protocols.
• Exposure to functional safety standards (ISO 26262).

Education

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Embedded Systems, or related field.

Seniority Level

Mid‑Senior level

Employment Type

Contract

Location & Salary

Belmont, MI • $80,000.00 – $100,000.00