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About the Role

You'll own the precision motion stack, full stop. This is a senior IC role on the controls side, responsible for the architecture and tuning of precision pointing and tracking control loops, state estimation, and closed-loop integration.

Responsibilities

• Architecture and tuning of the precision pointing and tracking control loops
• Closed loop tracking from sensor input through actuator command at hundreds of Hz
• State estimation across IMU, encoder, and vision based feedback (Kalman filters, complementary filters, sensor fusion)
• System identification and modeling of the gimbal, mount, and actuator dynamics
• Actuator tuning, gain scheduling, and compensation for nonlinearities (backlash, friction, saturation)
• Resonance characterization, notch filtering, and structural compensation
• Simulation infrastructure for controls development
• Hardware-in-the-loop test infrastructure for controls validation
• Field characterization of the system against real targets at the range
• Author controls documentation and tuning standards

Requirements

• 4+ years of experience in robotics
• Strong knowledge of fundamentals: classical controls, state space, LQR, MPC
• Proven simulation experience and a track record of managing the sim-to-real gap on actual hardware
• Modern C++ for real time control implementation
• Python or MATLAB/Simulink for modeling, system ID, and analysis
• State estimation in practice (Kalman, EKF, UKF, complementary filters)
• System identification and frequency domain tuning
• Direct experience with motion control hardware — servo drives, brushless motors, encoders, IMUs
• Comfortable working at the seam between mechanical, electrical, and software
• Understanding of latency, jitter, and how they kill control loop performance
• Must have experience tuning hardware that fought back, not just simulation or basic PID tuning
• This role requires access to export-controlled information or items that require "U.S. Person" status.

Skills

• Robotics
• Classical controls
• State space
• LQR
• MPC
• Simulation
• Sim-to-real gap management
• Modern C++
• Real-time control implementation
• Python
• MATLAB/Simulink
• Modeling
• System identification
• Analysis
• State estimation
• Kalman filters
• EKF
• UKF
• Complementary filters
• Frequency domain tuning
• Motion control hardware
• Servo drives
• Brushless motors
• Encoders
• IMUs
• Mechanical integration
• Electrical integration
• Software integration
• Latency understanding
• Jitter understanding
• Advanced MPC (nonlinear, robust, real-time NMPC)
• Gimbal control
• Beam director control
• Precision pointing system control
• Aerospace controls
• Defense controls
• Directed energy controls
• Adaptive control
• Robust control
• Vision-in-the-loop control
• Visual servoing
• Image-based tracking
• Hardware-in-the-loop simulation
• High bandwidth sensor pipelines
• Camera data processing
• Radar data processing
• IMU data processing
• Hitting moving targets

Location

• San Francisco

Work Type

• Full-time
• Onsite

Experience Level

• Senior

Education Level

• MS in Mechanical Engineering, Aerospace Engineering, Electrical Engineering, Robotics, or related field
• BS with strong hands-on robotics experience
• PhD with a real shipping record

Benefits

• Competitive salary + equity
• United Health Care medical, dental, and vision coverage
• Flexible 18 days PTO + 5 sick days
• Travel to field test events and range days
• Covered daily lunches and office snacks + drinks
• E-bike / scooter stipend (up to $500)
• Direct access to leadership and real ownership over your work

About the Company

• Aurelius Systems is a VC backed defense tech startup building autonomous, edge deployed directed energy systems for counter-UAS.
• We build laser weapons to shoot down drones.
• We're a small team of engineers, former US military operators, and subject matter experts scaling America's directed energy dominance.
• The first cost effective, reliable and robust laser weapon system.
• We operate with a small team, unreasonable output, and no hiding behind the unachievable.
• We have a San Francisco lab, a Detroit manufacturing hub, and field test weekly on our own 400-acre private range.

Equal Opportunity

• Don't Check Every Box? Apply anyway. The filter is simple: walk us through a controller you tuned on real hardware where the sim said one thing and reality said another. If you have that story, we want to talk regardless of what your resume says.