Mechanical Systems Engineer

Job Title: Mechanical Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US Anticipated Posting End: 2/1/2027 The Opportunity: CACI is seeking a systems engineer with a mechanical engineering emphasis. Join our team to create a complex mission critical communications system for our DoD customer. Your focus will be on design and creation of a large aperture antenna system and its subsequent technical and resilience testing. You will work in a cross-functional team, face difficult problems, and be expected to work independently with limited oversight. Responsibilities: With input from multidiscipline teammates, plan, design, develop, and evaluate mechanical and electro-mechanical components and sub-systems. Create detailed technical specifications, 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 Review test procedures for factory and site acceptance testing to ensure system quality and performance Prepare and review Contract Data Requirements Lists (CDRLs) to meet program documentation requirements Coordinate with technical support personnel regarding the mechanical portions of prototype testing undefined Develop engineering drawings, specifications, and BOMs that meet ASME Y14.5 GD&T standards. Perform design trade studies, tolerance analysis, and material selection for demanding applications Participate in prototype builds, assembly, and troubleshooting of mechanical hardware. Support and execute component- and system-level testing, including environmental testing (thermal, vibration, shock, etc.). Qualifications: Required: Bachelor's degree in Mechanical, Electrical, Computer, Aerospace Engineering or similar field from an ABET accredited university Experience and proficiency with 3D CAD software Must be a US Citizen and be able to obtain and maintain a TS/SCI security clearance Experience operating rapid prototyping equipment such as CNC, Lathes, hand tools, 3D printers Willingness to travel ≤10% of the time. Desired: Experience supporting DOD programs or projects - What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. The proposed salary range for this position is: $63,800 - 127,500 USD CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.