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

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

Contract Job Title:

Senior Firmware Engineer Location:

Mahwah, NJ (Onsite)

Job Type:

Long-Term Contract Job Summary We are looking for a highly experienced Senior Firmware Engineer to design, develop, and scale embedded systems for connected consumer products. This role involves working at the intersection of hardware, firmware, cloud, and user experience , collaborating with cross-functional teams to deliver reliable, high-quality products from concept through production. The ideal candidate will have strong hands-on expertise in embedded firmware development , system architecture, and real-time systems, along with a passion for building scalable and maintainable solutions in a fast-paced environment. Key Responsibilities Collaborate with cross-functional teams (UX, Software, Hardware, Product) to design and implement features Develop high-quality, reusable, and scalable firmware using best practices and design patterns Contribute to system architecture, performance optimization, and technical decision-making Refactor and optimize code for performance, reliability, and maintainability Develop unit and integration tests; participate in code reviews Perform debugging, troubleshooting, and issue resolution Improve deployment and testing efficiency using CI/CD pipelines Support sprint planning, backlog grooming, and agile ceremonies Work with modern tools and platforms including AWS, Docker, Jira, and Bitbucket Required Qualifications Bachelor s degree in Electrical Engineering, Computer Engineering, or related field 10+ years of experience in embedded systems and electronic product development Strong expertise with C/C++ programming Experience with 32-bit ARM microcontrollers Hands-on experience with RTOS (Real-Time Operating Systems) Strong knowledge of wired communication protocols (UART, SPI, I2C) Experience with wireless communication (Wi-Fi, Bluetooth) Experience with hardware debugging tools (oscilloscope, logic analyzer, JTAG, etc.) Familiarity with Git , SDLC practices, and tools like Jira/Confluence Strong troubleshooting, debugging, and analytical skills Preferred Skills Experience with bootloaders and OTA (Over-the-Air) firmware updates Knowledge of TCP/IP and networking protocols Experience with IoT devices and ESP modules Exposure to cloud platforms (AWS) and containerization (Docker) Experience working in Agile/Scrum environments Ability to work independently and in cross-functional teams Additional Notes This is a hands-on engineering role requiring strong firmware + hardware integration experience Candidates must be comfortable working onsite in Mahwah, NJ