Senior Firmware Engineer (Embedded Systems, RTOS, Wireless) Contract Mahwah, NJ (Onsite)

Senior Firmware Engineer (Embedded Systems, RTOS, Wireless) | Contract | Mahwah, NJ (Onsite)

Job Title: Senior Embedded Firmware Engineer

Location: Onsite Mahwah, NJ

Employment Type: Contract

We are seeking a highly skilled Senior Embedded Firmware Engineer to design, develop, and enhance embedded systems for next-generation connected consumer products. This role requires deep expertise in low-level firmware development, hardware bring-up, board-level debugging, wireless connectivity, and embedded architecture design. The ideal candidate will work closely with cross-functional engineering teams to deliver reliable, scalable, and high-performance products from concept through production.

• Design, develop, test, and maintain embedded firmware for connected devices and embedded platforms.
• Collaborate with Hardware, Software, Product, QA, and Engineering teams to define requirements and implement new features.
• Participate in board bring-up activities, hardware validation, and system integration.
• Develop reusable, maintainable, and scalable embedded software using industry best practices.
• Troubleshoot complex hardware and firmware issues throughout the product lifecycle.
• Optimize firmware performance, reliability, and power consumption.
• Contribute to embedded system architecture, technical design reviews, and engineering standards.
• Develop and execute unit testing, integration testing, and validation strategies.
• Perform code reviews and mentor team members on firmware development best practices.
• Support CI/CD processes and automated testing initiatives for embedded software releases.
• Investigate, triage, and resolve firmware defects identified during development and production.
• Participate in Agile/Scrum ceremonies including sprint planning, stand-ups, backlog grooming, and retrospectives.

• Bachelor s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field.
• 10+ years of hands-on experience in embedded firmware development.
• Strong expertise in C and C++ programming for embedded systems.
• Extensive experience with 32-bit ARM microcontrollers and embedded architectures.
• Solid experience with board bring-up, hardware validation, and low-level firmware debugging.
• Strong knowledge of communication protocols including UART, SPI, and I2C.
• Experience with wireless technologies such as Wi-Fi and Bluetooth.
• Hands-on experience with RTOS-based embedded systems.
• Strong understanding of TCP/IP networking fundamentals and embedded network stacks.
• Proficiency with version control systems such as Git and Agile development methodologies.
• Experience using debugging and diagnostic tools including oscilloscopes, logic analyzers, JTAG debuggers, and spectrum analyzers.
• Excellent troubleshooting, analytical, and problem-solving skills.

• Experience with bootloaders, secure firmware updates, and Over-the-Air (OTA) update mechanisms.
• Knowledge of IoT product development and connected device ecosystems.
• Experience with ESP-based modules and embedded display technologies.
• Familiarity with cloud-connected embedded systems and device management platforms.
• Experience working with containerized development environments and CI/CD pipelines.
• Strong understanding of software architecture, design patterns, and system scalability.
• Experience working within Agile/Scrum environments.
• Excellent written and verbal communication skills with the ability to work effectively across multiple engineering disciplines.