Model-Based Systems Engineer (MBSE)

Job Description This position requires active U.S. security clearance and the ability to obtain one. Travel may be required to customer and subcontractor sites as well as other office locations. This position is with Highbury Defense Group, an Accelint company. Accelint is dedicated to delivering mission-critical technology and defense solutions that accelerate innovation, readiness, and security outcomes. We provide technical, cybersecurity, logistics, and program management support to U.S. Department of Defense (DoD) and Department of State (DoS) agencies and select foreign governments and militaries. Our experience spans decades of operational and strategic support to the DoD, DoS, US Navy, USMC, USAF, and US Army. Our people range from retired and separated military to seasoned defense contractors to new grads. Our success stems from our drive to always provide objective, effective, and cost-efficient advice and solutions to our customers. We are seeking a highly motivated Model-Based Systems Engineer (MBSE) to support a variety of Department of Defense (DoD) and Department of Navy (DoN) Communications and GPS Navigation programs. The ideal candidate will bring deep expertise in MBSE methodologies, tools (such as Cameo/MagicDraw), and DoD acquisition processes to develop and maintain digital system models throughout the system lifecycle. This role requires the ability to work closely with cross-functional teams, customers, and stakeholders to ensure system design integrity and compliance with government standards. Responsibilities

Develop and maintain system architecture models using SysML and MBSE tools (e.g., Cameo/MagicDraw, Rhapsody, Enterprise Architect) Facilitate the development of Black Box and White Box models in accordance with DoD and NAVWAR standards Work closely with program engineering teams to develop questionnaires to identify what data is available for each program that can feed into a model, then help match programs with the appropriate MBSE automation tool(s) and enter data into the appropriate MBSE tool Integrate MBSE approaches with traditional systems engineering practices and digital engineering frameworks Translate stakeholder requirements into system models and technical specifications Participate in or lead technical reviews, model-based design efforts, and system verification/validation planning Collaborate with software, hardware, and integration teams to align models with implementation and testing Support DoD acquisition documentation and milestone reviews (e.g., SRR, PDR, CDR) Ensure models comply with DoD standards (e.g., DoDAF, UAF, MIL-STD-881, NIST 800-160 Vol 1/2) Prepare technical documentation and present modeling results to stakeholders, including government clients Maintain configuration control of models and support versioning and reuse strategies Qualifications

5+ years of experience in systems engineering with at least 2 years in MBSE roles Proficiency in MBSE tools such as Cameo/MagicDraw, Rhapsody, or Enterprise Architect Experience with Black Box and White Box modeling and development Experience with SysML and formal modeling techniques including Black and White Box Models Familiarity with DoD systems lifecycle (DoDI 5000.02, JCIDS, etc.) and C4I engineering processes Experience supporting DoD programs (Army, Navy, Air Force, Space Force, or OSD) Active Secret clearance required Bachelor's in systems engineering, Aerospace, Electrical Engineering, Computer Science, or a related field Clearance Information: Some positions will require access to U.S. Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a U.S. citizen and either currently possess this security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout employment. EEOC & Know Your Rights

Accelint companies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status, or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the Know Your Rights poster from the Equal Employment Opportunity Commission (EEOC). ADA

In compliance with the Americans with Disabilities Act (ADA), if you need an accommodation during the application and selection process, please contact careers@accelint.com. E-Verify

Accelint companies utilizes E-Verify to confirm employment eligibility to work in the United States. Verification occurs after the employee has been hired and completes the Form I-9. Salary Range

$120,000 - $159,871. The listed pay scale reflects a broad range for the location posted and is not a guarantee of compensation. Other compensation considerations may include job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, market data, or other applicable factors. Benefits

Paid Time Off Paid Company Holidays Medical, Dental & Vision Insurance Optional HSA and FSA Base and Voluntary Life Insurance Short Term & Long-Term Disability Insurance 401k Matching Employee Assistance Program

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