Sr. Firmware Engineer

We're looking for a Senior Firmware Engineer who can independently own the reliability of Hoomanely's embedded systems, from real-time sensor arbitration on shared buses to fleet-wide OTA delivery that never bricks a device. You've led firmware teams, driven low-level architecture decisions, and shipped connected hardware to production in a fast-paced, sensor-driven environment, whether it's pet wellness, wearables, or IoT.

Responsibilities:

• Architect and build reliable, real-time firmware on an RTOS, tuned for determinism, power efficiency, and long-term field stability
• Lead sensor and bus arbitration across I2C, SPI, and UART: no data collisions, no timing failures under load
• Own BLE firmware design, balancing continuous high-frequency streams with bursty event-driven data, without loss
• Design and harden OTA pipelines, canary rollouts, and rollback and boot-loop recovery for a live device fleet
• Own firmware-level battery charging safety, clock tree stability, and thermal cutoff logic, working closely with the hardware team.
• Take end-to-end ownership of one or more firmware modules, balancing reliability, maintainability, and time-to-market.
• Set and enforce firmware testing standards, including hardware-in-the-loop and automated testing.
• Mentor firmware engineers, review code, and raise the engineering bar across the team.
• Work in an agile environment alongside hardware, ML, and app teams; sprint planning is included.

Requirements:

• You have a B. Tech in Electronics, Computer Science, or a related field from a Tier 1 institute.
• You have 10+ years of proven embedded firmware experience.
• You have strong hands-on experience with RTOS-based firmware and protocols, including I2C, SPI, UART, and BLE.
• You've designed OTA update systems for safe rollout, rollback, and recovery from failure states.
• You have a solid understanding of clock trees, power and battery management, and sensor arbitration under real-time constraints.
• You're proficient in C and C++ for embedded and microcontroller-based systems.
• You're familiar with Agile methodologies, with a track record of leading or mentoring engineers.
• Bonus: experience with thermal sensors, IMUs, or camera modules on embedded platforms.
• Bonus: shipped firmware for a consumer hardware product at fleet scale.
• Bonus: familiarity with cloud platforms and device telemetry integration.
• Bonus: prior experience in a startup or fast-scaling hardware environment.

Skills

BLE, Bluetooth, Embedded, Firmware, RTOS