Senior GNC Engineer: Spacecraft Guidance & Control

Portal Space Systems; Bothell (WA); On-site; USD 120,000 - 160,000; Full time

Job summary

Portal Space Systems in Bothell, WA is seeking a Sr. GNC Engineer to lead the full lifecycle development of the GNC subsystem for flight software. You will oversee architecture, design, and development, and mentor other GNC engineers.

You will collaborate with software, avionics, propulsion, and mission planners to define requirements, perform analyses, and validate GNC through simulations and hardware-in-the-loop testing. Join a bold, fast-paced team shaping in-space mobility.

Qualifications

• Bachelor’s, Master’s, or PhD in related field or equivalent.
• 5+ years in spacecraft GNC development.
• Experience in autonomous navigation, guidance and control.

Responsibilities

• Design, develop, and validate GNC algorithms and simulations.
• Lead GNC integration with avionics, HWIL testing, and validation.
• Mentor junior GNC engineers and coordinate with teams.

Skills

GNC lifecycle

RPO Docking

Task decomposition

Control theory

Monte Carlo

Embedded software

Kalman filtering

Mission operations

Education

Aerospace Eng degree

Tools

MATLAB/Simulink

Python/C++

GPS/IMU sensors

Job description

Portal Space Systems in Bothell, WA is seeking a Sr. GNC Engineer to lead the full lifecycle development of the GNC subsystem for flight software. You will oversee architecture, design, and development, and mentor other GNC engineers.

You will collaborate with software, avionics, propulsion, and mission planners to define requirements, perform analyses, and validate GNC through simulations and hardware-in-the-loop testing. Join a bold, fast-paced team shaping in-space mobility.