# Senior Software Engineer, Interfaces and Contracts, Amazon LEO, D2D Software

Amazon Leo is building a low Earth orbit satellite constellation to bring fast, affordable connectivity to customers around the world. Direct to Device (D2D) extends Leo to standard mobile phones and devices: a fully regenerative fifth-generation (5G) mobile base station on each satellite, delivering service to standard handsets through mobile network operators (MNOs). D2D Software builds the embedded software that flies, the cloud and ground software that runs the service, and the platform that connects them. Our target is under a day from a defect being found to the fix deployed across the entire constellation, achieved by automating everything that a person would otherwise do by hand. This role leads interfaces and contracts in Software Architecture & Specifications, reporting to the Chief Software Architect, Software Architecture & Specifications. It owns hardware and software contracts, supplier interfaces, command dictionaries, and the telemetry and metadata contract. Before anything is handed on, the bar is: every interface states timing, resources, and a service level. It hands off to its customers as follows: ratified agreements to block teams within their service level. W

- **Id**: 4134269
- **Url**: <https://alion.io/job/amazon-senior-software-engineer-interfaces-and-contracts-amazon-leo-d2d-software>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Redmond, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: yes
- **Status**: live
- **First seen at**: 2026-11-11T00:00:00Z
- **Employer posted date**: 2026-11-12
- **Last verified at**: 2026-11-12T21:42:51Z
- **Board verified**: yes
- **Days open**: 1
- **Description format**: text
- **Description chars**: 7384
- **Description truncated**: no
- **Benefits**: Health insurance, Parental leave, Restricted stock units
- **Relocation offered**: no
- **Industries**: Advertising, Cloud Platforms (IaaS & PaaS), Logistics, Streaming & OTT Platforms

## Company

- **Id**: 19
- **Name**: Amazon
- **Domain**: amazon.com
- **Url**: <https://alion.io/company/amazon>
- **Size band**: 5000+
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Career site

### Truth index

- **Grade**: B
- **Score**: 78
- **Open postings**: 4651
- **Ghost share**: 0.001
- **Stale share**: 0.889
- **Repost share**: 0.003
- **Time to fill p50 days**: 31
- **Computed at**: 2026-11-12T10:38:37Z

## Salary

- **Min**: 168100
- **Max**: 227400
- **Currency**: USD
- **Period**: year
- **Usd annual**: 227400

## Technologies

- **Linux** — Optional: no
- **RTOS** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 1

## Requirements

- **Experience years min**: 5
- **Management years min**: 5
- **Manages managers**: no
- **Security clearance**: yes

## Hiring locations

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

## Lifecycle

- Event: open; At: 2026-11-12T03:23:02Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 23,961 · green card filings: 81; Filings 12m: 23961

## Liveness

- **Score**: 63
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.632
- **P room**: 1
- **Age days**: 1
- **Expected fill days**: 31
- **Reasons**: conf:1, stale_co, velocity, win:early, comp:brand
- **Computed at**: 2026-11-12T10:38:37Z

## Pay

- **Stated usd annual**: 227400
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.