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Sensor Fusion Engineer

United States - Remote

About Armaments Research Company   

 
Armaments Research Company (ARC) is a startup dedicated to bringing real time situational awareness and battlefield logistics capabilities to both the DoD and law enforcement personnel. You will be an integral part of the ARC team, and will be creating innovative and powerful IoT devices that feed data to the ARC technology stack. Our core offering is an embedded device designed in-house that pushes real time data to the cloud and back down to tactical users on a mobile android device. The information our device provides enables battlefield/tactical awareness that does not exist today. ARC technologies were initially developed in support of the US Defense Advanced Research Projects Agency (DARPA) and the National Science Foundation (NSF) and leverage internet-of-things (IoT) technology and machine learning (ML) to develop actionable insights and transform security responses. 
 
ARC’s core technology gathers data related to key weapon platform outputs which requires a suite of sensors that are transparent to the end user. The ARC products enable aggregated insights over big data sets that will be used to save lives on the frontline. This novel technology is deployed at scale on US Military and Law Enforcement weapons to enhance safety, decision making, and transparency for ground personnel.

What You'll Do

ARC is looking for a Sensor Fusion Engineer to join our team and work at the intersection of modern electronic sensor technology, high-speed digital signal processing, embedded systems, and applied physics. You will focus on the development of robust sensor fusion algorithms to generate accurate, drift-resistant orientation data using a 9-DOF sensor suite (3-axis magnetometer, accelerometer, and gyroscope). You are fluent in the physics of DC magnetism, experienced with Kalman filters, and comfortable deploying mathematical models in embedded systems or simulation environments.  Because you will be joining a startup, there are many opportunities to expand beyond your core skills set if desired. You will be part of a high caliber team dedicated to both mission and advancing ground-breaking technology.

Role Responsibilities - How You Will Make an Impact

  • Develop and refine sensor fusion algorithms (e.g., Extended Kalman Filter, complementary filters, quaternion-based methods) to estimate 3D orientation
  • Model sensor characteristics, including bias drift, noise, and magnetic field disturbances
  • Characterize and mitigate soft-iron and hard-iron distortions in magnetometer data
  • Implement sensor calibration procedures and real-time correction techniques
  • Analyze raw IMU data to diagnose anomalies, improve accuracy, and reduce drift
  • Collaborate with embedded software engineers to deploy fusion algorithms in firmware
  • Design and run experiments to validate orientation performance in varied environments
  • Assist with data collection, visualization, and performance reporting
  • Document algorithm design, assumptions, limitations, and implementation details

Relevant Skills and Experience

  • Bachelor’s or Master’s degree in Electrical Engineering, Robotics, Physics, Computer Engineering, or a related technical field
  • Strong understanding of 3D coordinate systems, rotation matrices, quaternions, and linear algebra
  • Experience implementing Kalman filters (EKF/UKF) and non-linear state estimation
  • Proficient in scientific computing tools (e.g., Python, MATLAB) for prototyping and data analysis
  • Familiarity with sensor noise modeling, statistical filtering, and real-world signal behavior
  • Understanding of DC magnetism, Earth's magnetic field, and magnetic interference in embedded systems

Bonus Points:

  • Experience working with embedded microcontrollers such as Nordic nRF/Zephyr SoCs or other RTOS environments
  • Experience with off-the-shelf fusion libraries such as XIOFusion
  • Familiarity with real-time constraints for filtering algorithms in resource-limited devices.
  • Experience with sensor calibration libraries, field testing, and hardware bring-up
  • Prior work with inertial navigation, wearable devices, robotics, or mobile tracking systems
  • Existing or ability to obtain a DoD security clearance

This position will require access to restricted information and facilities protected under U.S. laws and regulations, including the National Industrial Security Program Operating Manual (NISPOM). Please note that any offer for employment will be conditioned on any required authorization to receive access to such restricted information and facilities necessary to perform the responsibilities of the position.  

Citizenship Verification: This position requires verification of U.S. Citizenship to meet federal government security screening requirements required for this role. The successful candidate must be a U.S. Citizen and otherwise eligible to obtain access to classified information and facilities necessary to perform the responsibilities of the position.  

What We Offer:

Equity Options
401k plan
Employer paid employee medical, dental and vision

12 paid holidays plus Flexible PTO Policy 

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