Lead Enterprise Systems Engineer

General information

Requisition # R65414 Locations USA-MO-Bridgeton Posting Date 01/23/2026 Security Clearance Required None Remote Type Onsite Time Type Full time

Description & 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 troubleshoo