- Robot type
- Defense
- Location
- Mountain ViewCaliforniaUSA
- Job type
- Software
- Posted
- Sep 23, 2026
- Salary
- $120,000–$230,000 a year
Full-time
Firmware Engineer
Job description
Company Overview ACS (Allen Control Systems) is a defense technology company building precision robotic systems for the United States and its allies. Founded by two former U.S. Navy electrical engineers with deep experience in robotics and software, ACS brings together AI, computer vision, precision motion, and advanced hardware to solve complex defense challenges across land, air, and maritime environments.
Our flagship product, Bullfrog, is an autonomous precision weapon system that transforms existing weapons into highly accurate counter-drone systems — giving warfighters a scalable, cost-effective response to one of the fastest-growing threats on the modern battlefield.
Job responsibilities
- Own the architecture and implementation of time- and safety-critical embedded firmware on STM32-based platforms;
- Write drivers for sensors and peripherals; select and configure communication protocols including CAN, I2C, UART, and Ethernet appropriate to each use case.
- Determine and implement deployment strategies for fielded aircraft, including bootloader design and over-the-air or field update approaches.
- Set up and maintain hardware-in-the-loop testing infrastructure; produce thorough design documentation that captures architectural decisions, protocol selections, and tradeoffs clearly enough to stand on their own.
Job requirements
- 4+ years of industry experience in embedded firmware development; fluency in C and C++ is required.
- Deep understanding of bare-metal and RTOS embedded architectures; strong working knowledge of embedded communication protocols including CAN, I2C, UART, and Ethernet and the ability to select the right tool for each…
- Solid experience with bootloader design and firmware deployment for fielded systems; experience setting up hardware-in-the-loop testing environments.
- High standards for code quality and correctness; demonstrated ability to document and justify architectural decisions clearly and concisely so that design rationale is durable and legible to others.