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Salary
≈ $103k – $196k per year (Estimated)
Location
Hybrid (Saint Louis, United States)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Jun 5, 2026. Agile Defense scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Agile Defense is an American government technology services company that has grown rapidly through acquisition into a mid-tier federal contractor, backed by the private equity firm Enlightenment Capital. It provides digital transformation, cloud and infrastructure services, cyber operations, artificial intelligence and mission support to defence, intelligence and civilian agencies, largely through cleared staff embedded with government programme offices. Headquartered in McLean, Virginia, it competes in the segment between the very large primes and the small business set-aside contractors, where consolidation has been rapid.

Requisition #: 1647

Job Title: System Engineer (MBSE)

Location: Hybrid, St Louis, MO

Clearance Level: Secret, Must Have Clearance to Start

Job Description

    This position Applies a collaborative, interdisciplinary systems engineering approach to plan, design, develop, integrate, and verify complex systems and system-of-systems solutions throughout the lifecycle. Analyzes customer and operational requirements to define system performance, ensure compatibility across technical and program interfaces, and optimize overall system architecture. Conducts engineering analyses to support affordability, reliability, maintainability, safety, cybersecurity, certification, and mission assurance objectives. Leads requirements management, risk and issue management, technology readiness assessments, and systems engineering processes while resolving cross-functional technical challenges to ensure successful mission outcomes.

  • Perform analysis to optimize total system and/or system architecture to solve complex mission planning problems.
  • Apply interdisciplinary, collaborative approaches to plan, design, develop and verify system solutions.
  • Define and coordinate system performance requirements and integrate technical parameters.
  • Define high level functional and performance requirements and verification methods, subsequent analysis, decomposition, and derivation of requirements, allocation of those lower-level requirements to physical and functional architectural elements, and tracking them through design, verification, integration, and operational validation.
  • Perform analyses for affordability, safety, reliability, maintainability, testability, survivability, human systems integration, survivability, vulnerability, susceptibility, system security, regulatory, certification, product assurance, product security (cyber security) and other specialties quality factors into a preferred configuration to ensure mission success.
  • Utilization of Model-Based Systems Engineering (MBSE) tools such as Cameo, and mathematical modeling and simulation to develop system definitions and perform trade studies in assigned areas
  • Perform risk assessments and generate mitigation plans for various programs with regard to compliance with system requirements and customer capabilities
  • Develop verification and validation methods, processes, logic, and plans in support of program milestones.
  • Develop and document software system requirements
  • Analyze and translate requirements into system architecture, hardware and software designs and interface specifications
  • Test and validate to ensure system designs meet operational and functional requirements.

Education and Background

  • Bachelor, Master or Doctorate of Science degree from an accredited course of study, in Computer Engineering, Software Engineering, Computer Science, Mathematics, or other technical degreeExperience with software configuration management tools such as Team Foundation Server/Azure DevOps
  • Experience writing and analyzing test procedures and software requirements
  • Experience with OFP (Operational Flight Program) SIL (System Integration Lab) testing

Years of Experience

    5+ years

Required Skills

    5+ years of experience in system engineering, 1+ years of experience with Scaled Agile Framework or Agile Methodologies

Working Conditons

    Typical office environment.

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