Mechanical Engineer

N4 Solutions, LLC offers our public and private sector clients the collective intellectual knowledge, expertise, and experience of our company and associates to help our customers evaluate, collaborate, innovate, and create business, technology, and scientific solutions that enable them to accomplish their mission and achieve organizational objectives. With the growth of the company, we are seeking a highly motivated and hard-working mechanical engineering professional to join our team.

The successful candidate will work in a high-paced and rewarding work environment.

The Mechanical Engineer will perform hands-on scientific and engineering work supporting NRL mechanical engineering and structural integrity research. The position focuses on designing and executing mechanical and environmental tests, characterizing material and component performance, developing experimental fixtures and test systems, instrumenting and validating test setups, analyzing mechanical response and failure behavior, and documenting technically defensible findings for Navy applications.

• Conduct structural integrity testing of metallic alloys, non-metallic materials, bearings, machinery components, and other Navy-relevant hardware to characterize durability, fatigue, static stiffness, dynamic stiffness, strength, wear, and related mechanical properties.
• Develop and execute laboratory and field test plans that incorporate representative operational variables such as seawater or periodic sea-spray exposure, temperature, load, cyclic loading, vibration, stress, strain, and other environmental or mechanical conditions.
• Design experimental methods, test matrices, fixtures, loading schemes, instrumentation layouts, acceptance criteria, and data-acquisition approaches for mechanical and structural test programs.
• Set up, instrument, calibrate, validate, and troubleshoot mechanical test systems, sensors, load cells, strain measurement devices, displacement sensors, environmental chambers, data-acquisition hardware, and associated control systems.
• Perform fatigue, durability, stiffness, load-response, environmental exposure, and failure testing on materials and components under controlled and Navy-relevant service conditions.
• Evaluate the effects of material selection, fabrication methods, heat treatment, welding, bonding, fastening, adhesives, additive manufacturing, surface modification, wear, and other manufacturing or mechanical processes on structural performance and degradation.
• Support characterization of mechanical properties before, during, and after environmental exposure to quantify changes in strength, stiffness, fatigue resistance, wear, degradation, or failure behavior.
• Analyze test data using engineering, statistical, and numerical methods to identify performance trends, failure mechanisms, fatigue behavior, degradation rates, service-life implications, and design or material improvement opportunities.
• Conduct or support failure analysis of tested materials and components using visual examination, dimensional inspection, fracture-surface evaluation, microscopy, metallography, and other applicable analytical techniques.
• Design, fabricate, modify, and evaluate experimental platforms, test beds, fixtures, mockups, machinery, piping systems, and simulated environments needed to reproduce Navy operating conditions and support mechanical RDT&E.
• Use engineering software and analytical tools such as MATLAB, Python, Solid Works, Abaqus, COMSOL, or comparable platforms for data reduction, modeling, plotting, design evaluation, and interpretation of test results.
• Support development and evaluation of bearings, rotating components, structural materials, marine hardware, and other mechanical systems…