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Principal Engineer, State Estimation (Dallas, TX)

Dallas, Texas
Full Time On-site
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 
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.
Shield AI is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know. 

About Shield AI

Shield AI

Shield AI is a defense technology company building autonomous AI systems for aircraft, drones, and intelligent mission software used in complex military environments. Founded in 2015, the company is best known for developing Hivemind, an AI pilot system that enables aircraft and drones to operate autonomously in contested and GPS-denied environments, supporting U.S. and allied defense missions.

For job seekers, Shield AI offers opportunities across advanced fields including artificial intelligence, robotics, software engineering, autonomy systems, aerospace engineering, embedded systems, and mission operations. The company is especially attractive to engineers, AI researchers, and defense professionals who want to work on real-world autonomous systems that are actively being deployed in operational military scenarios.

Unlike traditional defense contractors, Shield AI operates with a startup-style engineering culture focused on rapid experimentation, real-world testing, and fast deployment of autonomous capabilities. Employees work on tightly integrated AI and robotics systems that combine perception, decision-making, and control, enabling platforms to operate without direct human input in highly complex environments.

As modern warfare increasingly shifts toward autonomous systems, distributed sensing, and AI-enabled decision-making, Shield AI continues to grow as one of the most prominent companies in next-generation defense technology. For professionals seeking to build cutting-edge autonomy systems with direct mission impact, Shield AI stands out as a leading employer in the defense innovation ecosystem.

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