Systems of Systems Architect with Security Clearance

Job Summary: Systems of Systems Architect (TS/SCI Required) Location: Reston, VA (Fully Onsite) | W2 | 12-Month Contract-to-Hire [About the Role] Apex Systems is seeking a mission-driven Systems of Systems Architect to join a high-impact Air Force software acquisition program in Reston, VA. In this influential position, you will architect and modernize a large, complex ecosystem of interconnected systems, directly supporting critical national security initiatives. You'll collaborate closely with government stakeholders and multidisciplinary engineering teams in a classified SCIF environment, shaping the future of defense technology. [Responsibilities] - Define, evolve, and document end-to-end systems-of-systems architecture across operational, logical, physical, and data views.

• Lead interface definition, integration patterns, and data exchange strategies across diverse mission domains.
• Develop and maintain architecture artifacts using DoDAF and Model-Based Systems Engineering (MBSE) methodologies.
• Conduct architecture trade studies, alternatives analyses, and technology assessments to drive modernization.
• Translate architecture models into actionable engineering recommendations and technical documentation.
• Ensure mission objectives are traced through requirements, architecture, integration, and implementation.
• Partner with systems engineers, MBSE modelers, software, and cybersecurity teams for seamless alignment.
• Create architecture roadmaps, transition plans, and interface documentation supporting capability evolution.
• Support technical reviews (SRR, PDR, CDR, TRR) and participate in architecture review boards.
• Provide technical leadership to small engineering teams, communicating complex concepts to both technical and non-technical audiences.
• Collaborate with government customers and multi-contractor teams within a classified SCIF environment.
• Participate in agile team scrums and cross-functional program meetings. [Required Skills and Experience] - Bachelor's degree in Systems Engineering, Computer Science, Engineering, or related technical field (or equivalent applicable experience).
• Minimum 10 years in systems engineering, system architecture, or enterprise architecture roles.
• Proven experience with Model-Based Systems Engineering (MBSE) and DoDAF architecture.
• Strong track record in developing architecture models, artifacts, and interface documentation.
• Experience integrating multiple systems across mission domains (e.g., space, air, intelligence, C4ISR).
• Proficiency with SysML, UML, UAF, and related modeling tools.
• Deep understanding of the systems engineering lifecycle, requirements analysis, and system integration.
• Excellent communication, collaboration, and technical leadership abilities.
• Ability to work full-time onsite in a classified environment and maintain active TS/SCI clearance. [Preferred Skills] - Master's degree in a technical field.
• Direct experience supporting Air Force, DoD, Intelligence Community, or mission-critical systems.
• Advanced knowledge of SysML modeling tools (Cameo, MagicDraw, Rhapsody).
• Experience with distributed systems, APIs, microservices, cloud, containerization, or digital engineering.
• Familiarity with cybersecurity frameworks (NIST, RMF, zero trust).
• Relevant certifications: INCOSE CSEP/ESEP, TOGAF, SAFe Architect, CISSP, Security+, AWS/Azure Architect. [Benefits] - Opportunity to transition from contract to permanent role with a leading technology contractor.
• Free onsite parking in Reston, VA.
• Work at the forefront of national security, influencing mission-critical defense solutions.
• Collaborate with top-tier engineering teams in a respectful, low-drama, and solutions-focused environment.
• Career growth in cutting-edge defense technology and digital engineering. [How to Apply] Qualified candidates who hold an active TS/SCI clearance and meet the requirements above are encouraged to apply online with a current resume. All applicants must be authorized to work in the U.S. without sponsorship and able to pass background and drug screening. :