Ruggedized Mechanical Design Engineer - Enclosures

Compunnel Inc.; San Diego (CA); On-site; USD 110,000 - 150,000; Full time

Job summary

Compunnel Inc. is seeking an experienced Mechanical Engineer to design ruggedized, IP-rated enclosures and components for extreme environments, using 3D CAD tools such as Creo or SolidWorks.

You will perform thermal/structural simulations and develop detailed drawings for prototypes, tooling, and production. The role requires hands-on fabrication, DFMA practice, and collaboration across cross-functional teams to ensure manufacturability and robust performance in demanding applications such as

Qualifications

• Bachelor's or Master's degree in Mechanical Engineering.
• 5+ years of relevant mechanical engineering experience.
• Proficiency in 3D CAD tools such as PTC Creo or SolidWorks; Creo 8 or later is preferred.
• Strong knowledge of mechanical systems, structural mechanics, heat transfer, and thermal analysis.
• Hands-on experience with FEA tools for thermal and structural simulations.
• Experience designing mechanical components for manufacturing processes such as injection molding, die casting, sheet metal fabrication, and CNC machining.
• Excellent communication, collaboration, and problem-solving skills.

Responsibilities

• Design ruggedized, IP-rated enclosures, seals, and gaskets to meet IP54 and higher standards.
• Design plastic components for injection molding, metal components for die casting, sheet metal parts for stamping and fabrication, and CNC-machined components using 3D CAD systems (PTC Creo 8 or later preferred).
• Perform hands-on fabrication and assembly of prototype components using rapid prototyping techniques (3D printing, SLA, CNC machining).
• Generate detailed engineering drawings for PCBs, EMI shields, mechanical enclosures, cable assemblies, and fabrication/tooling.
• Evaluate mechanical systems for structural integrity through static and dynamic calculations.
• Design lightweight mechanical structures for drone aviation applications, including magnesium cast components.
• Perform heat transfer calculations and conduct thermal and structural simulations using FEA tools.
• Apply DFMA principles throughout product development.
• Perform DVT using vibration, shock, and temperature cycling per MIL-STD-810.
• Develop EMI/RFI shielding solutions and review 3D CAD interfaces to resolve interference.
• Develop board constraint inputs for electrical board design.
• Prepare engineering reports, deliver presentations, and participate in design reviews.
• Create and maintain Bills of Materials (BOMs) and perform product cost analysis.
• Own mechanical design activities from prototyping through final production with external vendors.

Skills

Mechanical design

Finite Element Analysis

Thermal analysis

DFMA

Cross-functional collaboration

Documentation

Education

Bachelor's or Master's degree in Mechanical Engineering

Tools

PTC Creo 8+

SolidWorks

FEA software

Job description

Compunnel Inc. is seeking an experienced Mechanical Engineer to design ruggedized, IP-rated enclosures and components for extreme environments, using 3D CAD tools such as Creo or SolidWorks.

You will perform thermal/structural simulations and develop detailed drawings for prototypes, tooling, and production. The role requires hands-on fabrication, DFMA practice, and collaboration across cross-functional teams to ensure manufacturability and robust performance in demanding applications such as