GNC Engineer II/III — Spacecraft Autonomy & Simulation

Sierra Space; Louisville (CO); On-site; USD 105,534 - 145,109; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision plan

401(k) with 150% match up to 6%

Life insurance

Paid time off (3 weeks)

Job summary

Sierra Space is seeking a Guidance, Navigation & Controls Engineer II to design, analyze, and implement advanced GNC systems for spacecraft applications. This mid-level role emphasizes dynamic modeling, algorithm design, and simulation analysis, with independence on complex tasks and cross-functional collaboration to ensure performance and requirements compliance.

You will develop, implement, and evaluate GNC algorithms, simulate with SIMULINK and STK, and analyze sensors/actuators.

Qualifications

• Bachelor's degree in aerospace, mechanical, electrical engineering or related field (or equivalent experience).
• 2+ years of dynamic modeling and GNC algorithm design experience.
• Proficiency in SIMULINK and STK; familiarity with C, C++, Python; experience with version control tools such as GIT/SVN.
• Fundamental knowledge of GNC algorithms; experience designing at least one GNC algorithm (guidance, navigation, control or FDIR).
• Understanding of IMUs, GPS, star trackers, RCS, Reaction Wheels, Magnetic Torquer Bars, CMGs and LIDAR.
• Ability to obtain and maintain a U.S. Security Clearance.

Responsibilities

• Develop, implement, and evaluate GNC algorithms for spacecraft applications.
• Program and optimize simulations using SIMULINK and STK; model GNC sensors/actuators.
• Run Monte Carlo simulations and perform in-depth analysis to improve system performance.
• Analyze autonomous GNC mode transitions and ensure reliability; own performance requirements.
• Collaborate with GNC flight software teams in test simulation environments and document findings.

Skills

Dynamic modeling

GNC algorithm design

Monte Carlo simulations

Team collaboration

Education

Bachelor's degree in aerospace/mechanical/electrical engineering

Tools

SIMULINK

STK

C

C++

Python

Git/SVN

Job description

Sierra Space is seeking a Guidance, Navigation & Controls Engineer II to design, analyze, and implement advanced GNC systems for spacecraft applications. This mid-level role emphasizes dynamic modeling, algorithm design, and simulation analysis, with independence on complex tasks and cross-functional collaboration to ensure performance and requirements compliance.

You will develop, implement, and evaluate GNC algorithms, simulate with SIMULINK and STK, and analyze sensors/actuators.