Senior Mechanical Designer

MANTECH seeks a motivated, career and customer-oriented Senior Mechanical Designer to join our team. This position is onsite at Joint Expeditionary Base Little Creek-Fort Story
, Virginia Beach, VA.

• Develop and design complex mechanical components, fluid systems, propulsion layouts, and structural configurations for Navy small boats and combatant craft.
• Create detailed engineering drawings, schematics, and layouts using AutoCAD and Solid Works.
• Perform design calculations and analyses, including mechanical load calculations, pipe sizing, fluid flow, and weight/stability assessments.
• Collaborate closely with engineering, product development, and waterfront technician teams to resolve design conflicts and validate concepts.
• Review, validate, and approve detailed engineering drawings, change orders, and technical specifications for accuracy and manufacturability (DFM).
• Ensure all designs meet strict regulatory, safety, industry, and military standards (e.g., ABYC, NAVSEA, and DoD codes).
• Oversee and participate in prototype development, testing, and failure troubleshooting for design and manufacturing issues.
• Maintain meticulous project documentation, configuration management records, and technical design histories.
• Requires occasional travel to Chesapeake, VA, and within the United States for site visits.

• High School Diploma or GED
• 7+ years of specialized experience in mechanical design, preferably within a marine or naval defense environment.
• Expertise utilizing CAD software (AutoCAD and Solid Works) to generate high-quality engineering drawings from  as-built  or conceptual documentation.
• Experience with manufacturing processes, materials science, and core mechanical engineering principles.
• Hands-on experience with analytical and troubleshooting, handling complex manufacturing or prototyping issues.
• Excellent verbal and written communication skills to articulate technical details across engineering and client teams.

• Bachelor's degree or technical certification in Mechanical Engineering or a related technical discipline.
• Specific design experience with U.S. Navy small boats, combatant craft, or amphibious assault craft systems.
• Demonstrated experience in Project Management or leading engineering design tasks

• US citizenship required and a current or active Secret clearance.

• You must be able to remain in a stationary position 50% of the time.
• You will need to occasionally move about inside the office to access file cabinets and office machinery.
• This role frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
• You must be able to exchange accurate information in these situations.