Mechanical Engineer with Security Clearance

ManTech seeks a highly motivated and skilled Mechanical Engineer to support the Naval Surface Warfare Center (NSWC) Underway Replenishment (UNREP). This position is based onsite in Port Hueneme, CA . This role provides the opportunity to contribute to system design, prototyping, test and evaluation, and fielding of UNREP equipment that maintains critical at-sea logistics capabilities for the U.S. Navy. Responsibilities include but are not limited to: * Becoming a subject matter expert in UNREP procedures and equipment operation * Becoming proficient in identifying repair needs, maintainability challenges, and obsolescence risks in UNREP equipment * Using programs such as AutoCAD and SolidWorks to design, draft, and/or modify equipment designs * Collaborating with subcontractors, senior engineers, and senior technicians on design projects * Reviewing engineering drawings and schematics for accuracy and completeness * Completing engineering calculations related to loads and forces applied during UNREP system operation at sea * Participating in Engineering Change Proposal teams to resolve issues in deployed systems and propose documentation updates as needed * Developing and/or reviewing Design Specifications for various UNREP systems and associated logistics requirements * Conducting ship checks of UNREP sites for future installations * Ensuring compliance with all NAVSEA and shipyard installation requirements * Willingness to travel (less than 25%), including potential underway shipboard testing and training Minimum Qualifications: * Bachelor's degree in an Engineering discipline such as Mechanical, Electrical, or Marine Engineering (Mechanical Engineering preferred) * 5 years of experience in engineering projects or services, including interpreting ship schematics, working with control systems or variable frequency drives, and utilizing engineering software such as AutoCAD and SolidWorks * 1 years of hands-on experience in the design, evaluation, or maintenance of shipboard mechanical systems, with preference for UNREP or comparable Navy logistics support equipment; relevant naval operational experience may be substituted Preferred Qualifications: * Familiarity with shipyard and NAVSEA installation requirements and documentation * Strong communication skills and professionalism in interactions with employees, clients, and management * Effective problem-solving skills and adaptability to evolving requirements * Confidence working in various settings, including office, shop, and shipboard environments * Experience working with Control Systems and/or Variable Frequency Drives * Proficiency in Microsoft Office Suite (Excel, Word, PowerPoint), Adobe Acrobat, SolidWorks, and AutoCAD Clearance Requirements: * Must be a U.S. Citizen and able to obtain and maintain an Interim Secret Clearance Physical Requirements: * Ability to remain in a stationary position for 50% of the time * Must be able to lift and carry up to 50 lbs. * Ability to climb multiple flights of stairs, planks, or galleyways and work in confined spaces * Ability to operate standard office equipment (computers, printers, etc.) * Capability to go onboard ships and work in an industrial and operational environment * Ability to climb ladders and go through scuttles onboard vessels * Occasional movement around the office to access files and equipment

Location: Port Hueneme, California, US

Posted Date: 11/22/2025