Senior Firmware Engineer, Mill
$180-225k
Office located in San Bruno, CA
Food waste recycling company
Be an early applicant
Food waste recycling company
501-1000 employees
Be an early applicant
$180-225k
Office located in San Bruno, CA
501-1000 employees
Company mission
To keep food from stinking up your kitchen — and the planet.
Role
Who you are
- Bachelor’s degree in Computer Science, Electrical Engineering, or equivalent experience, with 5+ years in embedded systems development
- Deep understanding of computer networking and firmware for data-intensive applications
- Strong expertise in C programming for embedded systems, with a solid grasp of memory management and real-time operating system principles
- Hands-on experience with connectivity modules (Wi-Fi, Bluetooth) and RTOS (FreeRTOS preferred)
- Proficiency in hardware-software interfacing, including protocols like GPIO, I2C, SPI, and JTAG
- Proficiency with troubleshooting tools (debuggers, Wireshark) and measurement equipment (multimeters, oscilloscopes, logic analyzers)
- Demonstrated expertise in debugging and rigorous testing to quickly identify and resolve complex issues
- Familiarity with version control, CI, and build systems
Desirable
- Experience with ESP32 microcontrollers
- Working knowledge of cloud computing protocols (e.g., MQTT) and platforms like AWS (AWS CDK is a plus)
- Experience with cellular connectivity
- Excellent communication and interpersonal skills to foster a collaborative, team-oriented environment
What the job involves
- We're seeking a Senior Firmware Engineer to design, develop, and implement low-level firmware for our next-generation connected product
- You'll work closely with cloud services, mobile app, product and hardware teams to integrate Wi-Fi, Bluetooth, and other connectivity features seamlessly, while actively collaborating and contributing as a key team player
- Design and implement robust firmware on MCU platforms, ensuring support for wireless connectivity, data upload, OTA updates, sensor integration, and other core functionalities
- Develop and optimize communication stacks for Wi-Fi, Bluetooth, and other wireless protocols, ensuring reliable pairing, network configuration, and data exchange
- Write efficient low-level code that integrates with hardware peripherals (e.g., RF modules, sensors) using standard interfaces such as GPIO, I2C, SPI, and UART
- Apply best practices for error handling and performance optimization to support robust connectivity features
- Work closely with cross-functional teams to rigorously debug, test, and troubleshoot firmware, ensuring optimal performance, reliability, and security
- Engage actively with multidisciplinary teams, sharing insights and aligning on system-level requirements to drive cohesive project success
- Contribute to the deployment readiness of our systems for large-scale production
- Evaluate code from peers to maintain best practices in style, accuracy, and efficiency
Our take
Wasted food and its decomposition do more for CO2 emissions globally than the entire airline industry combined. Whilst food waste bins run by local councils in the US do redirect the majority of food waste to recycling plants, there are still holes to plug, which is exactly what Mill is doing.
For a yearly subscription, customers can buy and use a combined waste tracking and impact app alongside the company’s purpose-made food waste bin. Unlike other bins for food waste, Mill’s product shrinks and dehydrates waste so that there’s no smell or runoff. Mill will dispose of your waste themselves, and use it for sustainable chicken feed.
With a number of high profile environmentally-friendly investors behind them, the Mill ecosystem has a range of benefits for company subscribers as well as individuals. Restaurants and offices can subscribe to Mill and help to move towards sustainability goals, whilst partnerships with local farms provide a solid revenue structure.
Mill is only available in the US, but since its successful first-gen launch in 2023, it has been using funding from that year to enhance its product offering and reach a wider market.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
29% employee growth in 12 months
Company
Funding (2 rounds)
Sep 2023
$70m
SERIES C
Jan 2023
$100m
LATE VC
Total funding: $170m
Company HQ
San Bruno, CA
Leadership
Harry Tannenbaum
(Founder & President)Previously Director of Hardware at Google, Director of Business Analytics and eCommerce at Nest Labs and Analyst at Gleacher Partner.
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