Sr. Mechanical Design Engineer-Siemens NX

JSG (Johnson Service Group, Inc.); Oxnard (CA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Health insurance

Performance bonus

Wellness programs

Job summary

Johnson Service Group (JSG) is seeking a Senior Mechanical Design Engineer with 5–10+ years in aerospace. The role focuses on composite part design, laminate layups, and Siemens NX expertise, based in Oxnard, CA. It is an onsite direct-hire opportunity with an established aerospace company.

The candidate will drive concepts through detailed design, manufacturing, assembly, and integration, collaborating with cross‑functional teams while applying DFM and GD&T standards.

Qualifications

• Bachelor's degree in Mechanical or Aerospace Engineering is required.
• 5–10+ years of mechanical/structural design experience in aerospace.
• Strong proficiency in Siemens NX including 3D modeling and drawings.
• Hands-on experience with composite part design, laminate definitions, and ply layup development.
• Knowledge of composite manufacturing processes and fabrication requirements.
• Experience designing machined metallic components and assemblies.
• Working knowledge of ASME Y‑14.5 and GD&T.
• Ability to perform hand calculations and basic structural analysis.

Responsibilities

• Design and develop aerospace mechanical and structural components and assemblies from requirements.
• Detail design of composite and metallic components, focusing on weight and performance.
• Develop laminates, plies, and layups with DFM principles.
• Create and modify 3D models and drawings using Siemens NX.
• Prepare and release drawings per ASME Y14.5/GD&T standards.
• Perform hand calculations and basic FEA to support design decisions.
• Select materials, fasteners, and hardware.
• Support design reviews, documentation, and BOM development.
• Collaborate with manufacturing and assembly teams to resolve build issues.

Skills

Cross-functional collaboration

Problem-solving

Communication skills

Education

Bachelor's degree in Mechanical Engineering or Aerospace Engineering

Tools

Siemens NX

FEA basics

Job description

Senior Mechanical Design Engineer – Aerospace

Location: Oxnard, CA | Onsite

Employment Type: Direct Hire

Johnson Service Group (JSG) is seeking a Senior Mechanical Design Engineer with 5–10+ years of experience in aerospace mechanical/structural design, specializing in composite part design, laminate/ply layups, and Siemens NX.

This is a direct-hire opportunity with an established aerospace company in Oxnard, CA.

We are looking for a hands‑on design engineer who can take aerospace components and structures from initial concept through detailed design, manufacturing, assembly, and integration. The ideal candidate will bring strong expertise in composite design and manufacturing, proficiency in Siemens NX, and the ability to work independently while collaborating with cross‑functional engineering and manufacturing teams.

Key Responsibilities

• Design and develop aerospace mechanical and structural components and assemblies based on engineering requirements.
• Perform detailed design of composite and metallic components, considering weight, structural performance, manufacturability, and cost.
• Develop composite laminates, ply definitions, and layups while applying Design for Manufacturing (DFM) principles.
• Create and modify 3D models and engineering drawings using Siemens NX.
• Prepare and release engineering drawings in accordance with ASME Y14.5 / GD&T standards.
• Perform engineering hand calculations and basic FEA to validate design concepts and support engineering decisions.
• Select appropriate materials, fasteners, and mechanical hardware.
• Support engineering design reviews, technical documentation, and Bill of Materials (BOM) development.
• Collaborate with manufacturing and assembly teams to support fabrication, integration, testing, and resolution of build‑related issues.

Required Qualifications

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline.
• 5–10+ years of mechanical or structural design experience, preferably within the aerospace industry.
• Strong proficiency in Siemens NX, including 3D modeling and detailed engineering drawings.
• Hands‑on experience with composite part design, laminate definitions, and ply/layup development.
• Understanding of composite manufacturing processes and fabrication requirements.
• Experience designing machined metallic components and mechanical assemblies.
• Working knowledge of ASME Y‑14.5 and GD&T.
• Ability to perform engineering hand calculations and basic structural analysis.
• Strong problem‑solving, communication, and cross‑functional collaboration skills.
• ITAR compliance required

Preferred Qualifications

• Advanced Siemens NX experience, including complex part and assembly modeling.
• Experience with aerospace composite structures, including bonded and mechanically fastened assemblies.
• Knowledge of composite tooling and manufacturing processes.
• Experience with primary and secondary aircraft structures.
• Exposure to landing gear and hydraulic systems is a plus.
• Experience with advanced FEA, structural verification, and build-to-test engineering support.
• Health insurance benefits.
• Potential performance-based bonuses.
• Employee wellness programs.

Why Consider This Opportunity?

Join an aerospace engineering team where you can directly contribute to the design and development of advanced mechanical and composite structures. This role offers the opportunity to apply your Siemens NX and composite design expertise throughout the engineering lifecycle, from concept development to manufacturing and final integration.