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, career and customer-oriented Mission Integrator 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: Lead and integrate mission engineering projects that synchronize MS&A activities with Marine Corps experimentation, concept development, and multinational interoperability goalsCoordinate collaboration among modelers, analysts, and subject matter experts,managing integration plans, schedules, and risk mitigation effortsPlan and support large-scale events and working groups by creating coordinatinginstructions, documentation, Common Data Cards (CDCs), and Data Collection and Assessment Plans (DCAPs)Provide expertise in the application of M&S tools and techniques to ensure clarity inscope, resources, timelines, and risk executionDevelop and maintain project documentation including integration briefings, projectbinders, collaboration tools, resource allocation data, and Situation Reports (SITREPs) for leadershipPerform other duties in support of the customer, as requiredMinimum Qualifications:Bachelor’s degree and at least 3 years of experience in mission integration, systems integration, or related coordination roles.Experience working in military or government environments (highly desirable)Proven ability to manage complex projects with multiple stakeholdersFamiliarity with modeling and simulation methodologies and foundational systemsengineering principlesProficiency with collaboration platforms such as SharePoint, IntelShare, or ConfluencePreferred Qualifications:Knowledge of Marine Corps warfighting concepts, doctrine, and experimentationmethodsUnderstanding of Naval Capabilities Integration Process (NCIP) and missionengineering frameworksFamiliarity with military communication protocols, standards, and professionaldocumentationStrong verbal and written communication skills with the ability to lead discussions and facilitate cross-functional collaborationExcellent organizational, time management, and coordination skills to balance multiple prioritiesDemonstrated ability to produce, manage, and present technical projectdocumentation effectivelyClearance 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, career and customer-oriented Logistics / Facilities Support Specialist to join our team in Quantico, VA.This position requires expertise to support the receipt and management of all facilities and maintenance requirements and provide planning and oversight support to building and equipment inspections and testing.Responsibilities include but are not limited to:Manage workplace health, safety, and environmental related considerations.Analyze and identify faults or problems in equipment and machinery and ensure all facility support equipment remains functionalOperate Building Automation System (BAS) monitoring daily for any faults or troubles and elevate problems to government POC as needed.Demonstrate comprehensive knowledge of DoD, Navy, and Marine Corps Supply and Acquisition principles, procedures, techniques, guidance, and practices.Assist with property record management and provide KSD’s for newly acquired/requisitioned, transferred, or disposed equipment for accurate record keeping and retention.Request investigative or adjustment action for equipment abuse or loss to the Personal Property Officer and submit disposition requests for assets that are obsolete or no longer required.Minimum Qualifications:Bachelor’s degree and a minimum of 4 years’ experience. A total of 10 years’ experience without a degree.Ability to work on several products concurrently while managing competing deadlinesMust keep all stakeholders (customers, peers, leads) informed of activities, to include impediments, bottlenecks, dependencies, and other activities that might affect due dates and milestonesMaintains contact with the customer about project progress and deadlinesMust communicate effectively verbally and in writingThorough knowledge of MS-Office Suite (Word, Excel, PowerPoint, Access)Preferred Qualifications:3-5 years related experience and be familiar with a variety of the field's concepts, practices, and proceduresRelies on extensive experience and judgment to plan maintenance services, perform inspections, document findings, and provide feedback to government POCProficient in SharePointExperience with the Custodian Asset Report (CAR) to account for property assigned in the DPAS or Consolidated Memorandum Receipt (CMR) for property assigned in GCSS-MC. Assist with reconciliations of the CAR and CMRClearance Requirements:This role requires an active DoD TS/SCI clearance with SAP eligibilityPhysical Requirements:Must be able and willing to perform occasional manual labor and warehouse duties with the ability to lift up to 50 lbs

MANTECH seeks a motivated, career and customer-oriented Wargame Designer to join our team in Quantico, Va.This role is pivotal for shaping the future for our Marine Corps customer, driving the transition towards advanced digital wargaming environments, and leveraging cutting-edge modeling and simulation (M&S) capabilities.Responsibilities include but are not limited to:Create custom wargame designs that address specific objectives and research questions to inform service level decision and further development activities.Incorporate modeling and simulation tools within game design in order to continue advancing the customer towards the future wargaming concept.Develop both physical and digital products for wargames to include detailed design documents, rule sets, player guides, maps, tokens and other playing pieces to contribute toward a positive player experience and engagement.Facilitate and adjudicate wargames, ensuring they run smoothly and effectively and meet required objectives.Collaborate effectively with other wargame designers, developers as a part of a wargame design team to include the game director and lead analyst to create an environment that is conducive in achieving the analytical objectives of the game.Provide coordination assistance across various wargaming initiatives as needed to ensure customer satisfaction in every step of the planning process.Minimum Qualifications:Bachelor’s degree and at least 5 years of wargame design experience. A total of 10 years’ experience without a degree.Must be familiar with a wide variety of game mechanics, adjudication methods, and game methodologies.The ability to leverage digital wargaming platforms and simulation tools.Demonstrated leadership experience with planning and accomplishing designer goals and successfully directing others in this work.Demonstrated ability to operate with minimal supervision, act as a self-starter, and thrive in a diverse work environment comprising government civilians, contractors, and military personnel.Proficiency in creating, designing, and delivering professional, aesthetically appealing presentations using Microsoft products (e.g., PowerPoint) for diverse audiences.Must possess exceptional teamwork and interpersonal skills with demonstrated experience in effectively collaborating cross functionally and fostering a strong team-player ethos.Preferred Qualifications:Demonstrated experience in leveraging digital wargaming platforms and simulation tools and serving as a trusted advisor, capable of immediate contribution within these environments.Prior experience in a military or government contracting environmentClearance Requirements:This position required an active / current TS/SCI clearance (In DISS)Physical Requirements:This position requires exceptional public speaking skills with the ability to deliver engaging presentations and coordinate with others in an open forum environment to include planning conferences, play tests and other game development forums.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 office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which will include delivering presentations.

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.