MANTECH seeks a motivated, career and customer-oriented Mission Systems Architect to join our team in Stafford, VA. In this role, you will play a key part in supporting Marine Corps mission engineering initiatives by aligning Modeling, Simulation, Analysis, and Wargaming (MS&A) activities with warfighting experimentation and joint interoperability efforts. You will work closely with stakeholders to plan, coordinate, and execute high-impact projects that directly influence operational readiness and decision-making.Responsibilities include but are not limited to: Define and translate mission objectives into system architectures, requirements, and design specifications in alignment with DoDAF/UAF standards.Develop mission concepts of operations (CONOPS), operational scenarios, and performance models to ensure comprehensive mission planning and execution.Apply Model-Based Systems Engineering (MBSE) methods and tools to generate, maintain, and interpret mission architecture views, ensuring traceability between mission needs and technical solutions.Lead integration, verification, and validation efforts to confirm system readiness and mission success across the program lifecycle.Collaborate with cross-functional teams and stakeholdersincluding analysts, warfighters, developers, and subject matter expertsto align mission objectives with system capabilities and drive continuous improvement.Minimum Qualifications:Minimum of 3 years of experience in systems engineering, software development, or related engineering discipline, with exposure to complex military systems and architectures.Bachelor’s degree in Computer Engineering, Electrical Engineering, Systems Engineering, or a related technical field. Additional 2 years of experience may be substituted in lieu of degree.Hands-on experience applying DoDAF and/or UAF for system architecture definition, visualization, and documentation.Proficiency with requirements management tools (e.g., DOORS, Jama, Cameo) and model-based systems engineering (MBSE) methodologies, including modeling and simulation tools (e.g., SysML, MATLAB, Simulink).Strong communication skills with the ability to convey complex technical concepts clearly across multi-disciplinary teams and stakeholdersPreferred Qualifications:Proficiency in one or more programming languages such as C++, Python, or Java.Experience with hardware/software integration and familiarity with network architectures and protocols.Advanced expertise with modeling and simulation tools and technologies (e.g., Cameo & SysML, MATLAB, Simulink, ExtendSim).Demonstrated success operating in fast-paced, multi-disciplinary environments supporting mission-driven objectivesClearance Requirements:This role requires an active DoD TS/SCI Clearance with SAP eligibly.Physical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

MANTECH seeks a motivated and enthusiastic Program Analyst to support our current Marine Corps Warfighting Laboratory (MCWL) contract out of Stafford, VA.Responsibilities include but are not limited to:Provide direct support to Project Manager(s) on all cost, schedule, and performance tasks, products, and deliverables.Responsible for performing program, technical, or business analysis of DoD rapid prototyping and acquisition systems, providing recommendations to the client.Participate in or provide support to the Integrated Management Team.Collect, complete, organize, and interpret technical and finance data as it relates to rapid prototyping and program activities.Track project status and schedules, applying policies and procedures for financial planning. Track Requests for Information (RFIs), risks, and other tasks that require addressing and mitigation.Maintain and update project file databases at different classification levels.Travel less than 10% expectedMinimum QualificationsBachelor’s degree in Business, Management, Technical, or Scientific area from an accredited college or university.Must have at least 0-2 years of experience in program/project management support or earned value management and schedule.Must have experience with Microsoft Teams (collaboration hub) and SharePoint (file management).Must have experience working in Microsoft applications, specifically Excel, PowerPoint, Project, and Word.Must have experience updating/maintaining project schedules using MS Project or other scheduling softwarePreferred Qualifications:Relevant experience in technical efforts supporting weapon systems and components development.Experience processing program acquisition, funding, and contract documentation for military programs.Clearance Requirement: Must have an Active DoD Secret with the ability to obtain and maintain a TS/ SCIPhysical Requirements:Must be able to remain in a stationary position 50%

ManTech seeks a motivated, career and customer-oriented Model Based Systems Engineer (MBSE) to join our team in Stafford, VA.This is a full-time onsite position where you will provide subject matter expertise to perform MBSE activities using Cameo Systems Modeler in support of a critical Department of Defense (DoD) mission.The ideal candidate will bring deep expertise in systems modeling, operational architecture, and mission thread development in alignment with DoDAF and UAF frameworks. This role is pivotal in supporting mission engineering analysis, capability gap assessment, and architecture development within a highly dynamic and collaborative environment to enable and enhance our Nation's fighting forces.Responsibilities include but are not limited to:Lead the development and maintenance of system models for DoD mission engineering projects using Cameo Systems Modeler.Design and update mission threads, operational views, and system architecture models in line with DoDAF/UAF standards.Integrate both existing and new capabilities into mission-level architectural models.Work with stakeholders to find capability gaps, define decision points, and assist with data-driven risk and performance assessments.Collaborate with various teams, including systems engineers and analysts, to ensure traceability between requirements and operational objectives.Contribute to a collaborative modeling environment, such as a Government-managed Teamwork Cloud.Prepare and deliver technical briefings and model walkthroughs to Government stakeholders, and mentor others on MBSE processes and best practices.Minimum Qualifications:Bachelor’s degree and at least 12 years of experience in Systems Engineering, Computer Science, or a related technical field or Master's degree with 7+ years of professional experience in systems modeling using Cameo Systems Modeler (MagicDraw).Deep knowledge of DoDAF, UAF, SysML, and model organization best practices.Hands-on experience with Teamwork Cloud and other simulation/analysis tool integrations.Strong understanding of systems engineering principles, including requirements management, system architecture, and verification and validation.Strong understanding of mission engineering, kill chains/kill webs, and joint all-domain operations concepts like CJADC2.Excellent communication skills with a proven ability to deliver briefings to senior leadership and work effectively with technical and operational teams.Preferred Qualifications:A Master's degree in Computer Science, Software Engineering, or a related field.Experience with international standards like ISO and IEEE.Experience working with a DoD Combatant Command or supporting Navy, Marine Corps, or Joint Staff missions.Familiarity with MBSE for advanced prototyping and digital engineering efforts, along with knowledge of government modeling environments like the Navy Integrated Modeling Environment (NIME).Relevant certifications, including OCSMP, INCOSE CSEP/ESEP, or DoDAF/UAF certifications.Clearance Requirements:Candidate must have an active / current TS/SCI clearancePhysical Requirements:Must be able to be in a stationary position more than 50% of the time.Must be able to communicate, converse, and exchange information with peers and senior personnel.Constantly operates a computer and other office productivity machinery.The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.