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Job Description
The Senior Embedded Firmware Engineer at Alarm.com is responsible for designing, developing, and maintaining embedded firmware for IoT and security devices, leading complex integrations, and providing technical leadership to ensure scalable, reliable, and secure product solutions.
Key Responsibilities
- Design, develop, and maintain embedded firmware for connected security and IoT devices.
- Evolve firmware architectures based on RTOS platforms like FreeRTOS and Zephyr.
- Integrate third-party hardware such as security panels, sensors, and peripherals.
- Design and review device drivers, communication stacks, and application firmware for scalability and performance.
- Provide technical leadership and mentorship to firmware engineering team members.
- Collaborate with cross-functional teams to define requirements and deliver features.
- Conduct root cause analysis for complex hardware, firmware, cloud, and mobile system issues.
- Improve firmware automation, testing infrastructure, and CI/CD pipelines.
Requirements
- 7-8 years of professional experience developing embedded firmware in C or C++ for production systems.
- Deep, hands-on experience designing and shipping RTOS-based embedded systems, specifically with FreeRTOS, Zephyr, or equivalent platforms.
- Strong understanding of embedded system architecture, including task scheduling, concurrency, memory management, timing constraints, and fault handling.
- Extensive experience integrating third-party hardware and vendor SDKs using common interfaces such as UART, SPI, I2C, GPIO, etc.
- Proven ability to debug complex issues using hardware and software tools including JTAG, SWD, logic analyzers, oscilloscopes, tracing, and logging.
- Demonstrated ability to responsibly and effectively leverage AI-assisted development tools to accelerate firmware design, debugging, documentation, and test development, while ensuring correctness, security, and maintainability through rigorous review and validation.
- Experience working across cross-functional teams and influencing technical decisions beyond immediate team.
- Strong communication skills and the ability to provide technical leadership without formal people management responsibilities.
Benefits & Perks
Medical plans with company subsidies
Health Savings Account (HSA) with a company contribution
401(k) plan with an employer match
Paid vacation that increases with tenure
Paid holidays
Wellness time
Paid maternity and bonding leave
Company-paid disability insurance
Company-paid life insurance
Work from the office 4 days a week
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