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Salary
≈ $104k – $224k per year (Estimated)
Location
In office (Chantilly)
Seniority
Senior · 13+ years exp

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Aug 11, 2026. SAIC scores B on the Alion truth index.

Overview
Company
Impact
Profile match
SAIC delivers technology integration and mission services to government agencies. Its work spans enterprise information technology, space systems, engineering and digital modernisation. The company is one of the largest federal services contractors.

The Senior SIGINT Systems Engineer is a member of a high performing team supporting the customer Chief Engineer by providing expert advice and performing activities and tasks necessary to define and implement an innovative future SIGINT space architecture in a fast-paced, dynamic environment. The Senior SIGINT Systems Engineer supports the development of overhead SIGINT architectures and integration of new capabilities, including requirements definition, CONOPS development, systems engineering and integration, and system of systems end-to-end verification, validation, and test to meet compelling national security needs. Provides expert advice and manages systems engineering processes and implementation for SIGINT-developed collection systems, including space vehicle and associated ground command and control elements.

Job Description:

  • Manage and develop requirements from higher level Enterprise governing documents to the Segment level
  • Support transition of specification management activities into an appropriately scoped and purposed MBSE framework
  • Understand MBSE model development in support of systems engineering objectives and program milestones
  • Identify and assess segment-level impacts of new capabilities, including across specification, internal and external interfaces, and facilitate integration into the current program baseline
  • Support development of SIGINT-level architectures and integration of new capabilities
  • Support customer in CONOP development
  • Coordinate with other acquisition offices to ensure “end to end” acquisitions that reflect sound systems engineering practices
  • Support customer design review, providing technical insight to evaluate developer design
  • Manage external interface definition and coordination of changes with external stakeholders and developer
  • Review acquisition documentation required for a competitive source selection to ensure compliance with system-level requirements
  • Support processes to track and report progress on enterprise level actions
  • Review artifacts and briefings in support of critical oversight reviews to include NRO Acquisition Board (NAB), Acquisition Strategy Councils (ASC), Contract Review Panels (CRP), and Quarterly Program Reviews (QPR)
  • Provide technical insight to evaluations of developer proposals
  • Review complex technical design documentation and provide formal and informal feedback to the COTR and other customer personnel
  • Liaise with mission analysis and technical requirements teams to ensure completeness across the acquisition
  • Develop and coordinate strategic, executive communications, and decision briefings in support of customer priorities, acquisitions, and missions
  • Support evaluation of developer proposals
  • Support customer design reviews, providing technical insight to evaluate developer design effectiveness and maturity
  • Support the customer Chief Architect and Chief of Outreach as required
  • Other duties as assigned

Required Education:

  • Bachelors and fourteen (14) years or more experience; Masters and twelve (12) years or more experience; PhD or JD and nine (9) years or more experience

Required Qualifications:

  • Bachelor’s degree in STEM (science, technical, engineering, math) with at least 8 years of relevant experience
  • Understanding of DOD/IC satellite systems and architectures
  • Understanding of overhead SIGINT collection missions
  • Experience in DOD/IC acquisition and program management processes
  • Experience in system and/or enterprise level systems engineering (SE) across the life-cycle of complex space and ground acquisition processes
  • Ability to work collaboratively with personnel from multiple functions and at all levels of the customer organization to deliver results; strong networking, interpersonal, customer service skills, team building and problem-solving skills with an ability to be effective in a government/contractor team environment
  • Excellent oral and written communication skills, including experience developing executive level briefings, white papers, and correspondence
  • Excellent organizational skills, ability to plan, track and maintain due dates for multiple taskers and products
  • Strong attention to detail
  • Demonstrated sustained superior performance
  • Available to travel domestically

Desired Attributes:

  • Advanced degree in STEM (science, technical, engineering, math)
  • At least 13 years of relevant experience
  • At least 7 years of NRO/Intelligence Community experience
  • Prior SIGINT mission and/or acquisition experience
  • Familiarity with the NRO’s systems engineering practices
  • Experience with digital engineering and model-based systems engineering and associated tools
  • Experience with the development, integration, and test of software-intensive systems
  • Experience with Agile software development methodologies and tools (e.g., JIRA)

Clearance:

  • Must be a U.S. Citizen with an active TS/SCI clearance with an active Poly
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