Guidance, Navigation and Controls Engineer II/III – Rendezvous and Proximity Operations

Sierra Space

Guidance, Navigation & Controls Engineer II contributing to advanced GNC systems design for spacecraft applications. Working on dynamic modeling, algorithm design, and simulation analysis with cross-functional teams.

Posted 5/3/2026full-timeCentennial • Colorado • 🇺🇸 United StatesJuniorMid-Level💰 $105,534 - $145,109 per yearWebsite

Tech Stack

Tools & technologies

PythonSubversion

About the role

Key responsibilities & impact

Contribute to the design, analysis, and implementation of advanced GNC systems for spacecraft applications
Develop, implement, and evaluate GNC algorithms
Program and optimize simulations using SIMULINK and STK
Model and analyze GNC sensors and actuators such as IMUs, GPS, star trackers, RCS, Reaction Wheels, Magnetic Torquer Bars, Control Moment Gyros, and LIDAR
Run and modify Monte Carlo simulations, performing in-depth analysis to identify issues and optimize system performance
Analyze and implement autonomous GNC mode transitions to ensure system reliability and robustness
Take ownership of a group of performance requirements by conducting relevant analysis to ensure compliance
Work with GNC flight software (FSW) in target test simulation environments to validate functionality
Document technical findings and communicate results to stakeholders and team members

Requirements

What you’ll need

Bachelor’s degree in aerospace engineering, mechanical engineering, electrical engineering, or a related technical field (or equivalent work experience in lieu of degree)
2+ years of relevant experience in dynamic modeling and GNC algorithm design
Strong proficiency in SIMULINK programming and STK
Familiarity in C, C++, Python, and version control tools such as GIT/SVN
Fundamental knowledge of GNC algorithms and experience with designing at least one of guidance, navigation, control, or FDIR algorithms
Understanding of the working principles of IMUs, GPS, star trackers, RCS, non-propulsive actuators (Reaction Wheels, Magnetic Torquer Bars, Control Moment Gyros), and LIDAR
The ability to obtain and maintain a U.S. Security Clearance is required.

Benefits

Comp & perks

medical, dental, and vision plans
401(k) with 150% match up to 6%
life insurance
3 weeks paid time off
professional development opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

GNC algorithmsdynamic modelingSIMULINKSTKCC++PythonMonte Carlo simulationsguidance algorithmsnavigation algorithms

Soft Skills

communicationanalysisproblem-solvingownershipcollaboration

Certifications

U.S. Security Clearance