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Shield AISA

State Estimation Engineer (C++/Sensor Fusion/PNT) (R3881)

We're building the world's best AI pilot. Our mission is to protect service members and civilians with intelligent systems.

Shield AI

Employee count: 501-1000

Salary: 160k-342k USD

United States only

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Founded in 2015, Shield AI is a venture-backed deep-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT and X-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With nine offices and facilities across the U.S., Europe, the Middle East, and the Asia-Pacific, Shield AI’s technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube.

Job Description:

Join Shield AI’s Hivemind autonomy team, where we are pushing the boundaries of assured navigation and autonomous flight. As a Senior Engineer, you will play a critical role in designing, developing, integrating, testing, and deploying cutting-edge navigation and state estimation algorithms within our Hivemind SDK. We are seeking engineers with a strong foundation in state estimation theory and practical experience deploying robust, real-time solutions in commercial robotics, SLAM, or related autonomy applications.

What you'll do:

  • Research and develop state-of-the-art state estimation and navigation algorithms to enable resilient autonomy in challenging GPS-denied environments.
  • Design and deploy production-grade C++ software for embedded robotic systems operating in dynamic, real-world environments.
  • Build and maintain rigorous unit, integration, and system-level tests to ensure system robustness and safety.
  • Develop and enhance modeling, calibration, and simulation tools for inertial and vision-based navigation systems.
  • Contribute to roadmap planning, feature decomposition, and agile execution alongside a multidisciplinary team of autonomy engineers.
  • Continuously enhance performance analysis, benchmarking, and validation pipelines to drive rapid innovation and improvement.

Required qualifications:

  • M.S. in Aerospace Engineering, Electrical Engineering, Robotics, Computer Science or a related field; Minimum 2+ years of related professional work experience if you have an M.S degree or 0 years if you have a new Ph.D graduate.
  • Professional proficiency in modern C++ (C++11 or newer) and strong object-oriented design skills.
  • Hands-on experience deploying low-latency C++ applications to embedded Linux platforms.
  • Professional experience designing and implementing state estimation algorithms (e.g., EKF, UKF, Graph-based optimization).
  • Familiarity with VIO, SLAM, or multi-sensor fusion frameworks (e.g., gtsam, Ceres, OpenVINS).
  • Strong working knowledge of CI pipelines and automated testing frameworks for C++.
  • Ability to independently deploy high-reliability code suitable for real-world autonomous systems.
  • Familiarity with prototyping in Python or MATLAB is welcome, but this role demands professional C++ production deployment skills. Candidates whose primary experience is in MATLAB or Python are unlikely to find this position a good fit.

Preferred qualifications:

  • Deep understanding of graph-based optimization for state estimation.
  • Experience developing vision-aided inertial navigation systems (VINS, VIO).
  • Experience with navigation sensor calibration (IMU, GPS, barometers, magnetometers, laser altimeters).
  • Experience in benchmarking and system validation for real-world navigation performance.
  • Senior: $160,000-$240,000
    Staff: $187,000-$281,000
    Senior Staff: $228,000-$342,000
#LE
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.
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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 the job

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Job type

Full Time

Experience level

Mid-level

Salary

Salary: 160k-342k USD

Location requirements

Hiring timezones

United States +/- 0 hours

About Shield AI

Learn more about Shield AI and their company culture.

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We're building the world's best AI pilot. Our mission is to protect service members and civilians with intelligent systems.

AI pilots will revolutionize battlefields and commercial aviation at a scale greater than the self-driving movement reshaping our highways.

We’re building Hivemind, our AI pilot, to enable swarms of drones and aircraft to operate autonomously without GPS, communications, or a pilot. Our mission is to protect service members and civilians with intelligent systems.

Our Story

As a Navy SEAL, Shield AI co-founder Brandon Tseng experienced firsthand problems where intelligent autonomy could have made life-saving differences. He asked himself what does the military of 2030 look like and what role does autonomy play. The answer – AI pilots powering every military asset: aircraft, drones, ships, satellites and submarines. ​

What does the military of 2030 look like and what role does autonomy play? The answer – AI pilots powering every military asset: aircraft, drones, ships, satellites and submarines.

The lack of software and AI engineering talent from large defense primes presented an opportunity to start fresh and build the aerospace and defense technology company of the 21st century focused on AI pilots. And in 2015, alongside cofounders Ryan Tseng, and Andrew Reiter – Shield AI was founded to bring the best of AI and autonomy technology to the DoD and our allies to protect service members and civilians.

Our Values

Changing the world for the better is hard. The difficulty of operationalizing AI pilots is akin to landing an orbital rocket. When things are hard and you’re pushed to your limits, you fall back on your mission and values. Few things are more important, which is why they are at the heart of everything we do.

  1. Do what honor dictates.

  2. Live as a servant leader.

  3. Pursue excellence.

Employee benefits

Learn about the employee benefits and perks provided at Shield AI.

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Pet insurance

For your best friend!

Healthcare benefits

Excellent medical coverage for employees.

Equity benefits

Stock benefits, so you are rewarded for your best work.

Retirement benefits

401(k) services and match to help you invest in your future.

View Shield AI's employee benefits
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Shield AI

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