SoSi Advanced Subject Matter Expert (SME) in Reston, Virginia

Company Overview

For 25 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 New York City, and specializes in providing logistics, construction, training, intelligence, and information technology solutions to the defense, diplomatic, intelligence and law enforcement communities.

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

1-161011-4696: Advanced Subject Matter Expert (SME)

Job Category Research and Development

Duty Location U.S. - Virginia - Reston

Type of Position Full Time

Requisition Number 1-161011-4696


**This position is contingent upon contract award**

SOS International LLC (SOSi)is seeking a highly qualified Advanced Subject matter Expert (SME) . The candidate must be a recognized industry expert capable of providing advisor and consultant services resulting in significant technical value and return on investment.


  • Security Clearance requirements: TS, TS/SCI, S
  • MA/MS/Ph.D required
  • Prior experience working with Missile Defense Agency highly desirableMust be considered an leading SME in one or more of the multi-disciplinary missile defense area
  • 20 years’ experience required; 25 years desired

  • Must be capable of leading teams, considered the ‘go to” expert and/or working as team lead regarding very complex technical or programmatic issues related to complex weapons systems

  • Familiarity with operating at technical, managerial, and executive levels is highly desired

  • Experience with operating in politically-charged, sensitive and complex DOD/Joint/Service program environments is highly desired



  • Familiarity/expertise with one/more BMDS technical and operational attributes

  • Sensor systems, interceptor systems, Battle Management Command and Control (BMC2) systems

  • Expertise across several BMDS systems/elements is highly desired
  • Familiarity/expertise with design/development/operational constraints facing ballistic and space systems
  • Familiarity/expertise with requirements, design, development, testing, fielding and operations/sustainment of complex systems and “systems of systems” capabilities

  • Expertise across several of the life-cycle systems engineering activities above is desired

  • Expertise with complex systems TEST readiness (with an emphasis on ballistic missile and space systems) is desired
  • Demonstrated ability to support a wide-array of specialized assessments and evaluations

  • CYBER expertise for developmental and operational systems is desired