Senior Mechanical Engineer

Maxtena Inc•Germantown, MD

11d

About The Position

The Senior Mechanical Engineer leads the design, development, analysis, and testing of mechanical systems and components. This hands-on role covers the full product lifecycle, from concept through production, ensuring designs meet technical, quality, and regulatory requirements. The engineer collaborates across functions, mentors junior engineers, and contributes to continuous improvement and innovation. The role focuses on small, complex electronics enclosures, EMI/RF shielding, RF-transparent radomes and windows, and mechanical and thermal solutions for high-density electronics. Designs must address demanding environmental conditions and balance performance, durability, manufacturability, and appearance. The engineer performs analysis, produces CAD models and documentation, works with suppliers and manufacturing partners, builds and tests prototypes, participates in qualification testing, and provides technical leadership. Maxtena is an Equal Opportunity Employer. Applicants for U.S. job openings must be authorized to work in the United States.

Requirements

U.S. citizenship and ability to obtain Secret Clearance.
Bachelor’s degree in Mechanical Engineering or a related field.
8+ years of mechanical design and engineering experience.
Proficiency in CAD software, including SolidWorks, and FEA and thermal analysis tools.
Demonstrated understanding of GD&T, tolerance analysis, mechanical drawings, and configuration-controlled engineering.
Strong understanding of materials, manufacturing processes, and mechanical systems.
Excellent problem-solving, communication, and documentation skills.
Hands-on experience with die casting, CNC machining, sheet metal, composite molding, and additive manufacturing.
Advanced proficiency with full-cycle 3D printer prototype builds.
Demonstrated ability to work in cross-functional development teams.

Nice To Haves

Master’s degree preferred.
Experience developing and designing electromechanical products preferred.
Experience with structural and/or thermal analysis tools such as SolidWorks Simulation or ANSYS.
Experience in aerospace, defense, RF systems, or high-precision manufacturing.

Responsibilities

Lead mechanical design of small, complex electronics enclosures from concept through production.
Design and optimize EMI/RF shielding, including enclosure architecture, seams, joints, gaskets, interfaces, and grounding strategies.
Develop RF-transparent radome and RF window designs that balance electromagnetic performance with mechanical strength, environmental durability, manufacturability, and appearance.
Develop mechanical and thermal solutions for high-density electronics, including conduction cooling, heat spreading, heat sinks, thermal interfaces, and passive cooling strategies.
Design for water ingress, dust, vibration, shock, temperature extremes, corrosion, and outdoor exposure.
Select materials, coatings, finishes, seals, gaskets, adhesives, and joining methods for demanding applications.
Perform mechanical analysis and engineering calculations, including thermal, structural, tolerance, and vibration analysis as appropriate.
Create detailed 3D CAD models, drawings, assemblies, and engineering documentation.
Work with prototype shops, suppliers, and manufacturing partners to develop and refine designs.
Build and test prototypes, investigate failures, and drive design improvements.
Participate in environmental, EMI/EMC, RF, thermal, and mechanical qualification testing.
Mentor junior mechanical engineers and provide technical leadership on complex design problems.
Contribute to engineering standards, design methodologies, and product development processes.