Company Overview

For 30 years, clients in the private and public sectors have relied upon SOS International LLC (SOSi) for critical operations in the world’s most challenging environments. SOSi is privately held, was founded by its current ownership in 1989, maintains corporate headquarters in Reston, VA, and specializes in providing logistics, construction, training, intelligence, and information technology solutions to the defense, diplomatic, intelligence and law enforcement communities.

All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.

1-190807-9428: Systems Engineer (Computer Network Defense)
LocationOverseas - Germany - Wiesbaden
Open Date8/7/2019

SOSi is seeking a Systems Engineer (Computer Network Defense)  to provide Computer Network Defense (CND) technical support for the intelligence data networks in both a garrison and deployed environment throughout Europe.   


  • Utilizes security engineering principles involving communications security, network security, computer security, and key management 
  • Performs detection, correction and damage assessment of computer security vulnerabilities 
  • Develops policies and procedures to ensure systems reliability and accessibility, and prevents and defends against unauthorized access to networks, systems, and data. Develops computer network and systems designs to ensure implementation of appropriate security policies 
  • Develops programs to ensure users adhere to security policies and procedures. Installs, configures, maintains, and performs monitoring and analysis of security systems (firewalls, intrusion detection system (IDS), intrusion prevention system (IPS) etc.) 
  • Performs periodic vulnerability scans; corrects known vulnerabilities, and implements and monitors the use of PKI. Creates and runs security-related scripting and perform period risk assessments and log monitoring 
  • Provides technical and engineering support in the evaluation, installation and integration of security patches and protective measures 
  • Monitors and reports compliance status of Information Assurance Vulnerability Alerts (IAVAs) to the appropriate functional security managers 
  • Documents network defense security procedures, prepares and maintains status reports, and prepares and presents information briefings to keep leadership informed 
  • Prepares and maintains disaster recovery and business continuity plans for network information systems. Advises on correct methods of collecting security audit trails and archiving system operations logs 
  • Provides technical and engineering support in the evaluation, installation and integration, and testing of software to include new software, field engineering notes, patches and enhancements. Provides expertise on network systems security certification, accreditation requirements, and processes to certify systems or network accreditation 
  • Attends technical conferences 
  • Prepares and presents briefings as subject matter expert 
  • Current DOD Top Secret with SCI Access (TS/SCI)
  • Bachelor's degree in related field and minimum of 3 years experience; OR
  • Associate’s degree and minimum of 7 years experience; OR
  • 11 years technical experience; OR

Major Certification and a minimum of 7 years. Major Certifications (no substitutions) for accreditation purposes are: 

  • CCDP - Cisco Certified Design Professional
  • CCIE - Cisco Certified Internetwork Expert
  • CISSP - Certified Information Systems Security Professional
  • CCNP - Cisco Certified Network Professional
  • MCSE - Microsoft Certified Systems Engineer
  • MCDBA - Microsoft Certified Database Administrator
  • MCAD - Microsoft Certified Application Developer
  • MCSD - Microsoft Certified Solution Developer
  • MCSA - Microsoft Certified Systems Administrator
  • MCITP - Microsoft Certified IT Professional
  • MCM - Microsoft Certified Master
  • MCA - Microsoft Certified Architect
  • MCPD - Microsoft Certified Professional Developer 


  • Fluency in a foreign language


Specialized Experience

The System Engineer must obtain certification(s) satisfying the Technical Level II requirements in DoD instruction 8570.1


  • Working conditions are normal for an office environment