SoSi Intermediate Subject Matter Experts (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.

1-161011-4697: Intermediate Subject Matter Experts (SME)

Job Category Research and Development

Duty Location U.S. - Virginia - Reston

Type of Position Full Time

Requisition Number 1-161011-4697


**This position is contingent upon contract award**

SOS International LLC (SOSi)is seeking a highly qualified Intermediate 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
  • Bachelors degree minimum. Masters or Doctorate desired
  • Prior experience working with Missile Defense Agency highly desirable
  • 15 years’ experience required; 20 years desired
  • Must be capable of supporting teams and/or working independently regarding very complex technical or programmatic issues

  • 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

  • Proven ability to provide direct technical input for solving complex issues in this area

  • Must be considered an SME in one or more of the multi-disciplinary missile defense areas



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

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

- Expertise across at least one 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

- Demonstrated ability to support a wide-array of specialized assessments and evaluations

CYBER expertise for developmental and operational systems is desired