Senior Mechanical Design Engineer, Structures

Mach Industries•Huntington Beach, CA

About The Position

Mach Industries is seeking a Senior Mechanical Engineer to lead the design, analysis, testing, and verification of mechanical and electromechanical systems for next-generation defense platforms. This hands-on role owns structural engineering efforts from requirements derivation and conceptual design through production, including analysis, fabrication, testing, and validation. The engineer optimizes designs for manufacturing, assembly, mass, cost, and cross-disciplinary requirements while working with multidisciplinary teams to make technical decisions, resolve integration challenges, and support structural designs with test and analysis. The role owns assembly- and product-level data packages, including engineering drawings, GD&T, and analysis and test outputs, and contributes throughout the hardware development cycle. The engineer will also help establish structural engineering practices, mentor other engineers, and accelerate hardware development across the program. The position may require extended hours and occasional weekends to support critical development and test milestones.

Requirements

At least 5 years of mechanical engineering experience, focused on designing and prototyping mechanical systems.
Strong 3D CAD modeling skills using tools such as NX or SolidWorks, including drafting and GD&T expertise per ASME Y14.5.
Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Electrical Engineering, or a related field.
Ownership of hands-on, end-to-end hardware development efforts for flight or production hardware.
Experience integrating mechanical systems with sensors, actuators, and embedded control hardware.
Ability to work extended hours and weekends as needed.
Must meet the stated U.S. export-control eligibility requirements or be eligible to obtain the required authorizations.

Nice To Haves

Advanced degree (Master’s or PhD) in Mechanical Engineering, Aerospace Engineering, Electrical Engineering, or a related field.
Experience designing with lightweight materials, composites, or additive manufacturing techniques.
Experience with configuration management and change management best practices for aerospace systems.
Experience sizing structures using first-order hand calculations, FEA (Nastran), or multiphysics software packages.
Experience supporting coupon-, subscale-, or assembly-level testing for development and qualification campaigns.
Experience designing for cross-disciplinary impacts, including aerodynamics, fluid dynamics, or thermal management.
Experience with programming languages such as Python, MATLAB, or C++ for analytical modeling, simulation, and engineering problem-solving.

Responsibilities

Own mechanical design and development of system-level hardware, from early CAD concepts and functional prototypes through mass production.
Lead hands-on testing, including vehicle-level qualification and design validation as well as subscale and coupon-based testing, and use results to iterate designs.
Drive manufacturability, part selection, and tolerance stack-up decisions, including GD&T, for scalable production.
Apply structural, thermal, and materials engineering fundamentals and first-order sizing to develop robust, lightweight designs.
Design fixtures and tooling to manufacture, assemble, inspect, qualify, and test aerospace assemblies.
Author test plans, technical documentation, and engineering milestones for cross-team and leadership review.
Perform analytical modeling and FEA simulation to evaluate mechanical system performance, guide design decisions, and inform trade studies.
Own structural engineering efforts from requirements derivation and conceptual design through production, including analysis, fabrication, testing, and validation.
Own assembly- and product-level data packages, including engineering drawings, GD&T, and analysis and test outputs.
Work with multidisciplinary teams to drive technical decisions, resolve integration challenges, and ensure structural designs are supported by test and analysis.
Help establish structural engineering practices and mentor other engineers.
Support critical development and test milestones, including occasional extended hours and weekends as needed.