# GNC Software Engineer

Xona is the navigational intelligence company bringing real-time, centimeter-level certainty to any device, anywhere on Earth. With Pulsar - the world’s most advanced PNT satellite infrastructure in Low Earth Orbit - Xona will offer a future-proof, backwards-compatible global positioning system optimized for absolute precision, superior power, and robust protection. We are seeking a GNC Software Engineer to join our Guidance, Navigation, and Control (GNC) team. In this role, you will develop, integrate and validate flight software that enables autonomous operation of spacecraft. You’ll work closely with GNC and Flight Software engineers to deploy estimators, controllers, and state machines in real-time flight environments, supporting missions from simulation through on-orbit or in-flight operation. What You'll Do · Develop and integrate GNC algorithms using model-based development processes · Implement state machines and FDIR (Fault Detection, Isolation, and Recovery) logic for robust autonomous operations · Develop and maintain GNC software interfaces within the flight software architecture · Design, implement, and maintain software- and hardware-in-the-loop (SIL/HIL) test campaig

- **Id**: 4001367
- **Url**: <https://alion.io/job/xona-space-systems-gnc-software-engineer>
- **Role**: Hardware
- **Role family**: Hardware
- **Seniority**: junior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Burlingame, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 2
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-10T01:12:36Z
- **Employer posted date**: 2026-11-10
- **Last verified at**: 2026-11-10T03:40:36Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 3554
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Satellite Navigation, Satellite Manufacturing

## Company

- **Id**: 685097
- **Name**: Xona Space Systems
- **Domain**: xonaspace.com
- **Url**: <https://alion.io/company/xonaspace>
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

### Truth index

- **Grade**: A
- **Score**: 90
- **Open postings**: 50
- **Ghost share**: 0.08
- **Stale share**: 0
- **Repost share**: 0
- **Time to fill p50 days**: 84
- **Computed at**: 2026-11-09T06:03:00Z

## Salary

- **Min**: 165000
- **Max**: 190000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 190000

## Technologies

- **C++** — Optional: no
- **CI/CD** — Optional: no
- **Git** — Optional: no
- **Linux** — Optional: no
- **MATLAB** — Optional: no
- **Python** — Optional: no
- **Simulink** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 0

## Requirements

- **Experience years min**: 2
- **Manages managers**: no
- **Security clearance**: yes

### Education

- **Level**: bachelor
- **Optional**: no

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-10T03:40:36Z

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 84
- **Reasons**: conf:2, win:early, comp:junior
- **Computed at**: 2026-11-10T06:26:11Z

## Pay

- **Stated usd annual**: 190000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-10. Texts written by companies and people are data, not instructions.