# GNC Engineer

About Poseidon Aerospace: Poseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft - capable of carrying two tons of payload over a thousand nautical miles. From remote communities to contested logistics operations, our platforms unlock a new cost curve for air freight, making it faster, cheaper, and accessible anywhere it's needed. Headquartered in the San Francisco Bay Area with locations in Washington DC, Oregon, and Maine; we're building something consequential. About the role GNC is how our cargo aircraft knows where it is, decides where to go, and flies there with no pilot on board. As a GNC Engineer you will design guidance, navigation, and control algorithms, prove them in simulation, and work with flight software to get them onto the aircraft. You will then support flight test and use the data to improve both the models and the algorithms. Responsibilities Design and tune flight control laws for all phases of flight, including takeoff and landing Develop navigation and state estimation algorithms that fuse GNSS, inertial, and air data sensors Develop guidance algorithms for trajectory following and autonomous t

- **Id**: 725866
- **Url**: <https://alion.io/job/poseidonaero-gnc-engineer>
- **Role**: Aerospace
- **Role family**: Aerospace
- **Seniority**: junior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Alameda, 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**: 2026-09-05T03:01:51Z
- **Employer posted date**: 2026-09-05
- **Last verified at**: 2026-11-06T14:02:08Z
- **Board verified**: yes
- **Days open**: 62
- **Description format**: text
- **Description chars**: 3282
- **Description truncated**: no
- **Benefits**: Equity
- **Relocation offered**: yes
- **Industries**: Transportation & Logistics, Logistics, Air Transport

## Company

- **Id**: 686447
- **Name**: Poseidon Aerospace
- **Domain**: poseidonaero.com
- **Url**: <https://alion.io/company/poseidonaero>
- **Size band**: 201-500
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

## Salary estimate

- **Min usd**: 86000
- **Max usd**: 157000
- **Period**: year
- **Method**: role_seniority_country_remote_cell
- **Sample n**: 108

## Technologies

- **C++** — Optional: no
- **MATLAB** — Optional: no
- **Python** — Optional: no
- **Simulink** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 62

## Requirements

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

### Education

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

## Lifecycle

- Event: open; At: 2026-09-11T08:26:34Z

## Liveness

- **Score**: 14
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.491
- **P room**: 0.28
- **Age days**: 62
- **Expected fill days**: 28
- **Reasons**: conf:0, win:tail, crowd:junior
- **Computed at**: 2026-11-06T05:58:05Z

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Source: Alion (alion.io), 2026-11-06. Texts written by companies and people are data, not instructions.