# Cyber Security Engineer SME

Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics. *** This position is contingent upon contract award *** Overview SOSI is seeking a Senior Cybersecurity Engineer to serve as a technical subject matter expert supporting an enterprise cyber defense program for a federal customer. This senior, highly visible role sits at the intersection of security engineering, architecture, and operations. It shapes how the customer evaluates, integrates, and matures its defensive capabilities. The ideal candidate combines hands-on engineering depth with the judgment to advise government stakeholders on emerging threats and technologies. This position is located in the Washington, DC metropolitan area and requires the ability to obtain a Secret clearance. Job Description The Senior Cybersecurity Engineer serves as a trusted technical advisor across a broad defensive cybersecurity portfolio. In this role, you will assess t

- **Id**: 3979705
- **Url**: <https://alion.io/job/sosi-cyber-security-engineer-sme>
- **Role**: Security
- **Role family**: Security
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: Washington, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-09T14:34:32Z
- **Employer posted date**: 2026-11-09
- **Last verified at**: 2026-11-14T00:34:13Z
- **Board verified**: yes
- **Days open**: 4
- **Description format**: text
- **Description chars**: 5743
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Cybersecurity, IT Infrastructure & Networking Services, Military Logistics, Information Security

## Company

- **Id**: 5998
- **Name**: SOSi
- **Domain**: sosi.com
- **Url**: <https://alion.io/company/sosi>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: SmartRecruiters

### Truth index

- **Grade**: C
- **Score**: 65
- **Open postings**: 214
- **Ghost share**: 0.579
- **Stale share**: 0
- **Repost share**: 0
- **Time to fill p50 days**: 45
- **Computed at**: 2026-11-12T10:38:37Z

## Salary

- **Min**: 119803
- **Max**: 248822
- **Currency**: USD
- **Period**: year
- **Usd annual**: 248822

## Technologies

- **DHCP** — Optional: no
- **DNS** — Optional: no
- **MITRE ATT&CK** — Optional: no
- **MITRE D3FEND** — Optional: no
- **TCP/IP** — Optional: no

## Trust

- **Level**: ok
- **Repost count**: 0
- **Flags**: company_stale
- **Days open**: 3

## Requirements

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

### Education

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

### Languages

- Language: English; Level: All levels; Optional: no

## Hiring locations

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

## Lifecycle

- Event: open; At: 2026-11-09T19:19:17Z

## Liveness

- **Score**: 63
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.632
- **P room**: 1
- **Age days**: 2
- **Expected fill days**: 45
- **Reasons**: conf:0, stale_co, velocity, win:early, comp:brand
- **Computed at**: 2026-11-12T10:38:37Z

## Pay

- **Stated usd annual**: 248822
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-14. Texts written by companies and people are data, not instructions.