Senior Mechanical Designer with Security Clearance

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. Responsibilities include but are not limited to:
* 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.

Minimum Qualifications:

* 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.

Preferred Qualifications:

* 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 Clearance Requirements:
* US citizenship required and a current or active Secret clearance.

Physical Requirements:

* 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.