Lead Enterprise Systems Engineer Security Clearance

Position: Lead Enterprise Systems Engineer with Security Clearance
Location: Bridgeton

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, Dev Sec Ops , 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