Senior Embedded Engineer

Butlr•Burlingame, CA

2d•$150,000 - $200,000•Onsite

About The Position

Butlr is seeking a Senior Embedded Engineer to work across their MCU-based edge sensors and embedded Linux–based platform. This is a hands-on role at the cutting edge of IoT and edge computing, within a company experiencing rapid growth. The engineer will own significant pieces of the embedded stack end to end — firmware, OS builds, connectivity, and OTA — and their work on remote access, updates, and cloud connectivity will be pivotal to product reliability.

Requirements

7+ years of hands-on embedded software development.
BS in Computer Science, Electrical or Computer Engineering, or a related field; embedded systems specialization preferred.
Deep expertise in C/C++ across RTOS and embedded Linux environments.
Hands-on experience with embedded Linux builds (Yocto or Debian-based), BSPs, and kernel or driver development.
Experience with networking stacks and multi-interface connectivity, including failover and recovery behavior.
Experience with OTA firmware update systems and cloud-IoT integration (AWS IoT Core, Azure, or equivalent).
Experience with low-power design for battery-operated devices.
Strong communicator — able to translate technical decisions for non-technical stakeholders.

Responsibilities

Own the design and implementation of significant components of the embedded software stack for IoT gateway and edge devices.
Participate in design and code reviews, and help uphold engineering standards across the embedded team.
Work closely with hardware, firmware, QA, and cloud teams to integrate and debug across boundaries.
Evaluate and recommend tools, frameworks, and technologies to support the roadmap.
Design and develop firmware for MCU-based edge sensors, including RTOS tasks, drivers, sensor integration, wireless stacks, and low-power design.
Build and maintain embedded Linux OS images (Yocto or Debian-based), BSPs, kernel modules, and device drivers.
Implement and maintain connectivity across Ethernet, Wi-Fi, LTE/4G, Wi-Fi HaLow, and PoE, including failover and recovery behavior.
Integrate edge ML inference and cloud middleware (AWS IoT Core, MQTT, REST APIs).
Implement security features including secure boot, signed firmware, certificate management, and access control.
Develop and maintain OTA firmware update flows, including rollback protection and staged rollout.
Implement system health telemetry, watchdog, auto-recovery, and remote diagnostics.
Develop and execute embedded test plans; contribute to CI/CD pipelines for firmware builds and validation.
Perform peripheral bring-up, SoC driver integration, and RF/sensor validation.
Profile and optimize performance across CPU, memory, I/O, storage, and network.