Muse Wearables - Senior Firmware Engineer - RTOS

About Us

We are a fast-growing wearable technology startup focused on building intelligent, next-generation smart rings and related innovations. Our flagship product integrates Bluetooth, NFC, and dual-core PSoC63 architecture, running an RTOS-based application stack. We are looking for a skilled and passionate Lead Firmware Engineer to architect and lead firmware development, driving innovation in ultra-low power, high-performance embedded systems.

Role Overview

As a Lead Firmware Engineer, you will spearhead the design and development of embedded software for cutting-edge wearable products. You will work closely with cross-functional teams to ensure robust, optimized, and production-grade firmware that delivers superior performance and power efficiency.

Key Responsibilities Leadership

• Lead and mentor the firmware development team.
• Define coding standards, design patterns, and architecture best practices.
• Review code, troubleshoot issues, and uphold software quality.
  
  

Firmware Architecture & Development

• Design and implement embedded software for dual-core microcontrollers (e.g., Cypress
  
  

PSoC63) using C/C++ and RTOS (e.g., FreeRTOS).

• Develop inter-core communication mechanisms, memory management, and resource sharing strategies.
• Ensure thread safety, synchronization, and concurrency control in real-time systems.
  
  

Power Optimization

• Design ultra-low power firmware optimized for battery-powered wearables.
• Implement deep sleep modes, dynamic power scaling, and system-level power profiling.
  
  

System-Level Programming

• Work on startup code, linker scripts, interrupt vectors, and assembly routines.
• Optimize bootloaders and system memory usage.
  
  

Hardware Integration

• Interface firmware with BLE, NFC, sensors, and other peripherals via UART, I2C, SPI, etc.
• Collaborate with hardware engineers to integrate and test embedded features.
  
  

Debugging & Troubleshooting

• Use JTAG, SWD, logic analyzers, and profiling tools to debug and optimize firmware.
• Identify and resolve issues such as deadlocks, race conditions, and hardware-software bugs.
  
  

Cross-Functional Collaboration

• Partner with product managers, software, hardware, and manufacturing teams to define and deliver feature-rich firmware.
• Support production testing and field issue resolution.
  
  

Project Management

• Define project plans, scope, milestones, and deliverables for the firmware team.
• Ensure timely releases with high-quality and well-documented firmware.
  
  

Experience

Required Qualifications & Skills :

• 5- 8+ years in embedded firmware development.
• Experience in a leadership or principal role preferred.
• Programming Languages : Strong proficiency in C/C++ for embedded systems; exposure to ARM Cortex-M architecture.
• RTOS : Hands-on experience with FreeRTOS or similar RTOS platforms.
• Power Efficiency : Expertise in designing low-power firmware for battery-operated devices.
• Concurrency & IPC : Experience with dual-core processors, inter-core communication, semaphores, and synchronization.
• Low-Level Development : Familiarity with linker files, startup scripts, bootloaders, and system initialization.
• Communication Protocols : Proficient with BLE, NFC, UART, I2C, SPI, and other embedded interfaces.
• Debugging Tools : Skilled in using JTAG, SWD, oscilloscopes, logic analyzers, and other real-time debugging tools.
• Hardware Platforms : Prior experience with Cypress PSoC6 (preferably PSoC63) is highly desirable.
• Team Skills : Strong communication, documentation, and leadership skills with a proven track record of mentoring engineers.
  
  

(ref:hirist.tech)

We are a fast-growing wearable technology startup focused on building intelligent, next-generation smart rings and related innovations. Our flagship product integrates Bluetooth, NFC, and dual-core PSoC63 architecture, running an RTOS-based application stack.