Shield AI

Principal Engineer, State Estimation (Dallas, TX)

Shield AI$150K — $180K *
Aerospace & Defense
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • 12+ years in sensor fusion or navigation with a bachelor's; 10 years with a master's; or 8 years with a PhD; equivalent experience accepted.
  • Expertise in real-time navigation algorithms involving IMUs, GPS, and other sensors.
  • Strong knowledge of state estimation techniques like Kalman filters and particle filters.
  • Proficient in C++11+ for real-time systems; familiar with Linux and development tools.
  • Excellent teamwork and communication skills across engineering disciplines.
  • Proven success in shipping products that meet project timelines and quality standards.
  • Strong work ethic, trustworthiness, and high personal standards.

Responsibilities

  • Develop advanced state estimation algorithms for UAV navigation in contested environments.
  • Design state estimation frameworks integrating various sensor data.
  • Create robust real-time sensor processing pipelines for UAVs.
  • Collaborate with interdisciplinary teams to integrate state estimation in autonomous systems.
  • Conduct simulation, lab testing, and field validation of state estimation algorithms.
  • Adapt and implement the latest navigation technologies into real-world applications.

Benefits

  • Equity options in the company.
  • Eligibility for bonuses.
  • Comprehensive benefits package after 60 days for temporary staff.
Full Job Description
Job Description:

As a Principal State Estimation Engineer, you will play a key role driving the development, optimization, and deployment of advanced sensor fusion algorithms for autonomous UAV navigation in dynamic and contested environments. You will design and implement real-time sensor processing pipelines, integrate multi-sensor data for robust navigation and state estimation, and collaborate closely with autonomy researchers, software engineers, and hardware teams to ensure seamless system performance.

Your expertise will contribute to transitioning cutting-edge research into deployable solutions, helping Shield AI push the boundaries of UAV autonomy and situational awareness.

What you'll do:
  • Develop and implement advanced state estimation algorithms, including inertial navigation, sensor fusion, and alternative navigation techniques for denied environments.
  • Design and optimize state estimation frameworks to integrate data from IMUs, GNSS receivers, visual odometry, magnetometers, barometers, and radar systems.
  • Build real-time sensor processing pipelines for UAV platforms, focusing on robustness, accuracy, and failover performance.
  • Collaborate with autonomy, software, and hardware teams to ensure seamless integration of state estimation components within larger autonomous systems.
  • Lead simulation, lab testing, and field validation of state estimation algorithms to assess performance under varying operational conditions.
  • Stay on the forefront of navigation and state estimation innovation-adapting emerging technologies and research into deployable, mission-ready solutions.

Required qualifications:
  • Typically requires a minimum of 12 years of relevant experience with a bachelor's degree; or 10 years with a master's degree; or a PhD with 8 years of experience; or equivalent practical experience.
  • Deep experience developing real-time navigation and/or sensor fusion algorithms with IMUs, GPS, and other sensors.
  • Strong understanding of state estimation techniques (e.g., Kalman filters, extended and unscented variants, particle filters, etc.).
  • Proficiency with C++11 or newer; experience with real-time operating environments.
  • Comfort with Linux, scripting, and standard development tools.
  • Excellent communication and collaboration skills; ability to work across engineering disciplines and with external partners.
  • Proven track record of successfully shipping products, showcasing the ability to navigate through development cycles, overcome obstacles, and deliver high-quality solutions to meet project deadlines and exceed expectations in a fast-paced environment.
  • You have a demonstrated record of working hard, being a trustworthy teammate, holding yourself and others to high standards, and being kind to others.

Preferred qualifications:
  • Experience developing and implementing inertial navigation solutions for GPS-denied or degraded environments.
  • Knowledge of computer vision techniques
  • Proficiency in optimizing algorithms for compute-constrained systems
  • Experience with CUDA or other hardware acceleration technologies (e.g. FPGAs)
  • Proven track record of transitioning from R&D to production

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Full-time regular employee offer package:

Pay within range listed + Bonus + Benefits + Equity

Temporary employee offer package:

Pay within range listed above + temporary benefits package (applicable after 60 days of employment)

Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part-time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information.

About Shield AI

Shield AI is a defense technology company that develops artificially intelligent systems for military applications. The company was founded in 2015 by Brandon Tseng, Ryan Tseng, and Andrew Reiter, and is headquartered in San Diego, California. Shield AI's products include autonomous drones and software that can be used for reconnaissance, surveillance, and other military operations. The company's mission is to reduce the number of military casualties by providing soldiers with better intelligence and situational awareness. Shield AI has received funding from a number of investors, including Andreessen Horowitz and Founders Fund.
Learn more about Shield AI
Size
200 employees
Industry
Founded
2015

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