About this role
General information
Requisition # R65414 Locations USA-MO-Bridgeton Posting Date 01/23/2026 Security Clearance Required None Remote Type Onsite Time Type Full timeDescription & Requirements
Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting-edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now—be extraordinary at MANTECH!***This is for a future opportunity***
MANTECH seeks a motivated, career and customer-oriented Lead Enterprise Systems Engineer. This position will be located on-site in St. Louis, MO.
The Lead Enterprise Systems Engineer will support a transformative effort helping an Original Equipment Manufacturer (OEM) adopt digital engineering (DE) and model-based systems engineering (MBSE) across the enterprise.
Responsibilities include but are not limited to:
Leading enterprise-level design, build, and optimization of integrated multi-system solutions, ensuring architectural alignment, security compliance, and delivery performance
Performing hands-on configuration, integration validation, and troubleshooting using Model-Based Systems Engineering (MBSE) and digital engineering methodologies
Driving system integrity and operational adoption across enterprise environments through rigorous validation and alignment
Collaborating with OEM stakeholders to ensure the solution aligns to DoDI 5000.97 and stages capability enhancements to prioritize reduction of mission-critical pain points
Architecting and overseeing integration of Solumina (MES) and Costpoint (ERP) within the enterprise’s digital backbone
Providing on-site technical leadership to identify and resolve integration issues, performance bottlenecks, and vendor coordination challenges
Partnering with a fellow analysts to support continuous system improvement and effective DE/MBSE implementation strategies
Serving as a primary technical expert to communicate emerging and current enterprise capabilities to internal and external stakeholders
Overseeing sandbox infrastructure and executing validation procedures for software tools supporting applications
Minimum Qualifications:
Bachelor’s degree in Systems Engineering, Computer Science, or a related discipline
7+ years of experience in enterprise system design, integration, and optimization
Demonstrated expertise with Model-Based Systems Engineering (MBSE) and digital engineering software applications or platforms
Strong background in architecture alignment, security compliance, and system performance design
Proven ability to troubleshoot complex technical challenges and lead on-site resolution efforts across a multi-vendor environment
Ability to support travel to OEM site as needed
Preferred Qualifications:
Master’s degree in Engineering or a related field
Experience supporting model-based acquisition or similar transformation efforts within defense manufacturing environments
Experience with enterprise system platforms, including integration of Digital Engineering Environments with Enterprise Resource Planning (ERP),Manufacturing Execution Systems (MES), or Customer Relationship Management (CRM) platforms, to name a few.
Familiarity with Agile development, DevSecOps, and digital thread concepts
Excellent communication and stakeholder engagement skills
Clearance Requirements:
Must be a U.S. Citizen and be willing and able to obtain a Secret security clearance.
Physical Requirements:
Must be able to remain in a stationary position 50%
Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations
MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.