Systems Engineer - Principal

Job Locations US-VA-Arlington
Business Unit
TS/SCI Preferred
Location : Location


i3 is seeking a Systems Engineer II to support Mission Integration Management, Engineering, and Analysis activities. This position is located in Arlington, VA.

This position will support programs in the Office of the Under Secretary of Defense for Research & Engineering (OUSD(R&E)). USD(R&E) requires mission engineering, analysis, and integration expertise to produce objective insights and analytic justification to inform future technology and capability investment decisions within the Planning, Programming, and Budgeting Execution (PPBE) process and aid in the prioritization, alignment and validation of requirements within Joint Capabilities Integration and Development System (JCIDS) to deliver modernized capabilities that enable an all domain joint force aligned with future Joint Warfighting Concepts.


  • Applying experience and capability to: structure, design, and manage engagement and campaign level analyses; digitally model and execute simulations to analyze end-to-end weapon system fire control chains, sensor and communication networks, weapons effects, and Intelligence, Surveillance, and Reconnaissance system support; formulate and execute operations research analysis; estimate materiel solutions and operations cost; characterize and digitally model threat systems and their effects; perform analytical computation functions, perform mission, gap, risk, and sensitivity analyses
  • Applying subject matter expertise in technologies; system capabilities, performance, and operations; and joint force operations related to one or more of the following areas: Joint force application and integration, concepts of employment, concepts of operations, and operational constraints; land, sea, air, and space platforms; offensive, defensive, kinetic and directed energy weapons from all domains; sensors for ISR and fire control; cyberwarfare; communication networks; electromagnetic spectrum management - to include Electronic Warfare and 5G; automation applications; Command, Control, and Battle Management; and/or Fires - close air support, long range fires, targeting, air and missile defense
  • Support stakeholder integration working level meetings related to Joint Capabilities Integration and Development System (JCIDS), Joint Force Integration Cell (JFIC), Joint All-Domain Command and Control (JADC2), War gaming / Table Top Exercises (TTX), Service / COCOM Engagement, Industry Engagement, and USD(R&E) Modernization Assistant Directors
  • Develop, maintain, and curate government reference architectures used to communicate and guide analysis efforts, document and communicate results, and set the basis for subsequent engineering and prototyping activities
  • Conduct mission engineering and analysis studies to evaluate the efficacy of legacy architectures and new technologies in new mission concepts of employment to meet evolving joint mission objectives; produce a comprehensive mission blueprint that documents and communicates the ways and means to achieve the recommended joint mission solution and the analytic justification for the value it provides
  • Develop/acquire models and data, and use simulations to analyze the performance of legacy and alternative solutions against mission success criteria
  • Conduct future gap/tradeoff analysis and studies and align mission analysis plans



  • Minimum of a bachelor’s degree in engineering
  • Minimum of ten (10) years of engineering experience
  • TS/SCI security clearance highly preferred 
  • Experience developing system solutions to complex and challenging DoD problems
  • Experience planning and executing complex mission and systems analysis efforts
  • Experience conducting systems engineering tasks including Technology Analysis and Assessment, System Definition, Systems Analysis, Systems Architecture development and architecture products, and Logistics support of Department of Defense (DoD) systems
  • Expert in assessing threat kill chains operations and identifying exploitable vulnerabilities, analyzing mission threads and blue force system kill chains to identify capability gaps and solutions, developing system models, constructing and executing simulation and analysis plans, conducting trade studies and sensitivity analysis, interpreting and synthesizing results and translating them into concise and comprehensive artifacts for documenting and communicating to multiple audiences

Desired Qualification:

  • PhD in Engineering
  • Experience interfacing with Joint Staff, Services, and warfighters to coordinate engineering and analysis needs and analytic results is highly desired



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