Mechanical Systems Engineer

CACI International Inc

Senior Systems Engineer creating large aperture antenna systems for DoD customers. Focus on system diagrams, CAD designs, and ensuring project quality during deployment.

Posted 4/11/2026full-timeSterling • Colorado, Florida, Virginia • 🇺🇸 United StatesMid-LevelSenior💰 $82,100 - $172,400 per yearWebsite

Tech Stack

Tools & technologies

PythonTypeScript

About the role

Key responsibilities & impact

Create and maintain detailed system diagrams, wiring diagrams, CAD designs, BOMs, etc. for large aperture antenna systems
Develop and present design reviews to customers, ensuring clear communication of technical concepts
Represent the program by leading customer presentations, demonstrating project progress and system capabilities
Participate in on-site system installation, provide technical expertise during deployment
Conduct thorough factory and site acceptance testing to ensure system quality and performance
Prepare and complete Contract Data Requirements Lists (CDRLs) to meet program documentation requirements

Requirements

What you’ll need

Bachelor's degree in Electrical, Computer, Aerospace, or Mechanical Engineering or similar field from an ABET accredited university
5+ years of experience in systems engineering or related field
Proven experience in creating and managing end-to-end system design; system diagrams, wiring diagrams, power budgets, mechanical designs, and managing BOMs
Experience with factory and site acceptance testing procedures
Excellent project management skills, including experience with end-to-end material management
Ability to obtain and maintain a TS/SCI security clearance
Familiarity with CAD software
Master’s degree in a relevant engineering field (desired)
5+ years of experience in systems engineering for large aperture antenna systems or related defense projects (desired)
Demonstrated ability in creating and presenting design reviews to government customers (desired)
Hands-on experience with global deployment of large-scale antenna systems (desired)
Familiarity with Contract Data Requirements Lists (CDRLs) and government contracting processes (desired)
Familiarity with relevant applications: Microsoft Office, Microsoft Project, Microsoft Visio, Systems Tool Kit (STK), Solidworks, Python/MATLAB (desired)

Benefits

Comp & perks

healthcare
wellness
financial
retirement
family support
continuing education
time off benefits

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

system designsystem diagramswiring diagramspower budgetsmechanical designsBOM managementfactory acceptance testingsite acceptance testingproject managementtechnical expertise

Soft Skills

clear communicationpresentation skillscustomer engagementleadershipcollaborationproblem-solvingattention to detailorganizational skillstechnical communicationproject coordination

Certifications

Bachelor's degree in Electrical EngineeringBachelor's degree in Computer EngineeringBachelor's degree in Aerospace EngineeringBachelor's degree in Mechanical EngineeringMaster's degree in relevant engineering fieldTS/SCI security clearance