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# Navigation Software Engineer - Assured PNT & Sensor Fusion

- **Company:** Zeus Inc
- **Location:** United States (Remote available)
- **Salary:** $80,000 - $160,000
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Algorithm Design, Automation of Tests, C++ (Programming Language), Embedded Software, Experimental Data, Global Positioning Systems (GPS), Inertial Navigation Systems, Integrated Development Environments, Python (Programming Language), MATLAB, State Estimation, Sensor Fusion, Software Engineering, Test Data, Information Technology, GNSS
- **Published:** October 27, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=b0aa95056017be53

## About the Role

The ideal candidate has a strong foundation in inertial navigation and state estimation and will take navigation algorithms beyond simulation into real hardware and flight-test environments., * B.S. or higher in Aerospace Engineering, Electrical Engineering, Mechanical Engineering, Computer Science, Robotics, Mathematics, Physics, or a related technical field.

 * Strong understanding of inertial navigation systems (INS) and GPS/GNSS-aided navigation.
 * Experience developing or implementing Kalman filters, state estimators, or sensor-fusion algorithms.
 * Understanding of IMU measurements, inertial sensor errors, coordinate frames, attitude representations, and navigation equations.
 * Experience with MATLAB, Python, C, and/or C++ for algorithm development, simulation, analysis, or implementation.
 * Ability to analyze experimental data and troubleshoot navigation-system performance.
 * Ability to work collaboratively in a fast-paced engineering and prototype-development environment., * Experience developing navigation software for UAS, missiles, launched effects, autonomous vehicles, aircraft, or other embedded platforms.
 * Experience with GNSS-denied or contested navigation.
 * Experience integrating non-GNSS aiding measurements into an INS or navigation filter.
 * Experience with vision-based navigation, visual-inertial navigation, LEO PNT, terrain-aided navigation, Doppler/radar aiding, or other alternative navigation technologies.
 * Experience with tightly coupled or deeply integrated GNSS/INS architectures.
 * Experience with GNSS integrity, jamming, spoofing, or interference detection/mitigation., * navigation algorithm: 1 year (Preferred)

## Description

* Develop, implement, tune, and evaluate GPS/INS navigation filters and multi-sensor navigation solutions.
 * Design and maintain Kalman-filter-based state estimation algorithms, including error-state and/or extended Kalman filtering approaches.
 * Develop sensor and error models for IMUs, GNSS receivers, magnetometers, and other navigation sensors.
 * Integrate new navigation aiding sources into an INS-based navigation solution.
 * Support integration of alternative navigation technologies, which may include vision-based navigation, LEO-derived PNT, terrain or feature-based navigation, or other signals of opportunity.
 * Develop algorithms for operation through degraded, disrupted, or denied GPS/GNSS environments.
 * Analyze navigation performance, covariance behavior, sensor errors, filter convergence, and failure modes using simulation and recorded test data.
 * Develop software and analysis tools for navigation algorithm development, automated testing, data replay, and performance characterization.
 * Support laboratory, HWIL, ground, and flight testing of navigation systems.
 * Work closely with embedded software, hardware, systems, and test engineers to transition navigation algorithms onto operational hardware.
 * Diagnose real-world navigation problems using recorded sensor and flight data and translate findings into algorithm or software improvements.