Senior GNC Engineer

reflect-orbital· Engineering
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📍 Hawthorne, CAFullTime💰 USD 130K–220K

About this role

At Reflect, you will be expected to move fast, have a lot of ownership and, most importantly, be able to effect change. If this excites you, we are interested in hearing about your best work and accomplishments across any domain and from any points in your life.

 

About the Role

As a Senior GNC Engineer you will directly shape the in-orbit performance of a novel space vehicle. Your work will span vehicle-level dynamics and control, orbit propagation, flight software and HITL testing on our avionics. We're looking for someone who brings "full-stack" GNC development capability to the table.

 

Responsibilities

  • Come up with creative solutions to the unique problems that come with precisely putting a spot of reflected sunlight on the ground from space.

  • Design, develop and test our closed-loop guidance, navigation and control for both attitude and orbit.

  • Plan trajectories and attitude motion profiles that satisfy our spot serving constraints.

  • Develop and own our 6-DOF simulation of vehicle attitude and orbital dynamics, and use it to characterize vehicle performance through Monte Carlo analysis.

  • Write GNC algorithms in flight software (C++/Rust) and validate them using our avionics in the loop.

  • Drive sensor and actuator selection with our avionics engineers so attitude determination and control are reliable in flight.

  • Analyze and plan orbits and constellation design to maximize our overall spot serving capability.

 

Ideal Qualifications

  • 5+ years of professional GNC engineering experience, ideally on spacecraft or other dynamically controlled vehicles.

  • Clear technical ownership of a GNC subsystem that has flown, covering the simulation, the algorithms and the flight software.

  • Strong background in modeling physical systems from first principles, including flexible body dynamics, sensors, actuators and the space environment.

  • Expertise in state estimation design for attitude and orbit determination, validated in flight.

  • Ability to verify and validate GNC flight software in an integrated environment, using HITL testing.

  • Experience in guidance, maneuver and constellation design, including orbit selection, coverage and station-keeping.

  • Experience in real-time spacecraft operations support, from commissioning through console operations to on-orbit anomaly resolution.

  • Fluency in Python, C++ and/or Rust.

 

Even if you don’t meet 100% of the above qualifications, we are likely still interested in hearing from you. Hiring exceptional individuals is our #1 priority, and we believe that exceptional people often have highly unusual backgrounds.

We are also interested in carving out unique roles for unconventional people that we are excited about working with.

Benefits

Reflect Orbital’s success will hinge on our team, which is why our compensation and benefits plan is designed to reward our employees and support their families as generously as we’re able.

  • Broad choice of medical/dental/vision coverage, Reflect covers 100% of each base-policy

  • Access to HSA, FSA, and 401K

  • Unlimited paid time off

  • Healthy lunches provided daily

Equal Opportunity

Reflect Orbital is an Equal Opportunity Employer; employment with Reflect Orbital is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

More about Reflect Orbital:

Learn more about our team here.

Frequently Asked Questions

What is the salary for the Senior GNC Engineer role at reflect-orbital?
The listed salary for this Senior GNC Engineer position at reflect-orbital is USD 130K–220K. This is an FullTime role.
Where is the Senior GNC Engineer position at reflect-orbital located?
This Senior GNC Engineer role at reflect-orbital is based in Hawthorne, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior GNC Engineer role at reflect-orbital full-time or part-time?
This is listed as a FullTime position. It is posted as a Senior GNC Engineer role in the Engineering department at reflect-orbital.
Which team or department does the Senior GNC Engineer at reflect-orbital belong to?
This Senior GNC Engineer position is part of the Engineering department at reflect-orbital. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior GNC Engineer position at reflect-orbital?
Click the "Apply Now" button on this page. You will be redirected to reflect-orbital's official application portal hosted on ashby where you can submit your application directly.
When was the Senior GNC Engineer job at reflect-orbital posted?
This Senior GNC Engineer position at reflect-orbital was posted on Aug 31, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior GNC Engineer
reflect-orbital · 💰 USD 130K–220K
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You'll be redirected to reflect-orbital's official application page on Ashby ATS.