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. Bullfrog is deployed with U.S. forces, and ACS works with organizations throughout the U.S. military and national security community.
Following a $200 million Series B at a $2.2 billion valuation, ACS is rapidly expanding manufacturing, accelerating Bullfrog deployments, and developing the next generation of autonomous battlefield systems. This is an opportunity to join a proven, fast-moving team and help scale technology with direct, real-world impact on national security.
ACS is headquartered in Austin, Texas, with additional operations in Alexandria, Virginia; Mountain View, California; and Huntsville, Alabama. For more information, visit allencontrolsystems.com.
About The Role
We are looking for a Motor Drive Firmware Engineer with deep expertise in embedded systems and real-time control for electromechanical systems. You will design and implement high-performance motor control firmware critical to the precision and reliability of our autonomous platforms, working closely with electrical, mechanical, and systems teams to ensure seamless integration across hardware and software.
We’re hiring across multiple experience levels, including:
Associate Engineer
Engineer
Senior Engineer
Staff Engineer
Senior Staff Engineer
Your title and level will be determined based on your experience, skills, and the scope of responsibility appropriate for the role.
What You’ll Do
Design and implement embedded firmware in C/C++ for real-time motor control, including high-frequency control loops, deterministic system behavior, and control algorithms (PID, FOC) for BLDC, PMSM, or similar motor systems.
Work closely with electrical engineers to bring up motor control boards, including debugging power stages, gate drivers, and sensor feedback systems.
Use lab equipment including oscilloscopes, logic analyzers, and power analyzers to validate performance and troubleshoot control, timing, and signal integrity issues.
Optimize firmware for latency, efficiency, and reliability in hardware-constrained environments; conduct lab and field testing to validate motor performance under real-world operating conditions.
What You’ll Need
3+ years of experience in embedded firmware development with a focus on motor control systems.
Strong experience with real-time control loops and BLDC/PMSM motors, motor drivers, and power electronics.
Proficiency in C/C++ for embedded systems and experience with microcontrollers such as STM32, TI C2000, or similar.
Strong debugging skills using hardware lab tools including oscilloscopes, logic analyzers, and power analyzers.
You’ll Stand Out
Experience with Field-Oriented Control (FOC) or advanced motor control techniques.
RTOS or bare-metal real-time firmware experience.
Experience integrating firmware with mechanical systems and actuators.
Familiarity with high-reliability or defense systems.
What We Offer
Competitive salary
ACS Equity Package
Health, Dental, Vision Insurance
Paid Time Off
Allen Control Systems is an Equal Opportunity Employer, providing equal employment opportunities to all employees and applicants for employment. Allen Control Systems prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. #LI-AS1
Skills Required
- 3+ years embedded firmware development focused on motor control systems
- Experience with real-time control loops and BLDC/PMSM motors, motor drivers, and power electronics
- Proficiency in C/C++ for embedded systems
- Experience with microcontrollers such as STM32, TI C2000, or similar
- Strong debugging skills using oscilloscopes, logic analyzers, and power analyzers
- Experience with Field-Oriented Control (FOC) or advanced motor control techniques
- RTOS or bare-metal real-time firmware experience
- Experience integrating firmware with mechanical systems and actuators
- Familiarity with high-reliability or defense systems
Allen Control Systems Compensation & Benefits Highlights
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Healthcare Strength — Feedback suggests medical, dental, and vision coverage are consistently advertised, with HSA/FSA options and coverage reportedly beginning the first day of the month after hire. These elements point to a solid healthcare foundation even if cost-sharing details are not publicly established.
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Equity Value & Accessibility — Feedback suggests an ACS equity package is broadly included alongside salary, offering potential upside tied to company performance. The precise value depends on grant size, vesting, and exercise terms that have not been disclosed publicly.
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Leave & Time Off Breadth — Feedback suggests paid time off is explicitly offered, with one account noting upfront PTO for hourly employees and some scheduling flexibility. These signals indicate a tangible time-off framework despite unclear total allowances and accrual rules.
Allen Control Systems Insights
What We Do
Allen Control Systems is a defense technology company for a new era of drone warfare and to completely change battlefield economics. ACS is developing counter-drone robotic gun systems targeted at neutralizing attacking drone swarms, drones that are pre-programmed with AI, and drones that are non-jammable. ACS was created to lower the cost per kill of a drone to a few dollars. We do this by combining cutting-edge hardware and software that allows us to point an inexpensive gun that already exists in the field more accurately than anyone ever has before. ACS is a remote organization, with our HQ in Austin, Texas, and an office in Alexandria, Va. If you're passionate about our mission, we’d love to hear from you.
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