Sr. Mechanical Design Engineer-Siemens NX

Johnson Service Group; Long Beach (CA); On-site; USD 131,000 - 160,000; Full time

Benefits offered by this job

Health insurance

Retirement benefits

Potential performance-based bonuses

Employee wellness programs

Job summary

Johnson Service Group (JSG) is seeking a Senior Mechanical Design Engineer with 5-10+ years of aerospace experience to lead mechanical and structural design efforts in composite parts and laminates using Siemens NX.

The role takes concepts through detailed design, manufacturing, and integration, performing hand calculations and basic FEA, and collaborating with cross-functional teams to deliver robust aerospace solutions at Oxnard, CA onsite.

Qualifications

• Bachelor's degree in Mechanical or Aerospace Engineering.
• 5-10+ years of mechanical or structural design experience in aerospace.
• Proficiency in Siemens NX for 3D modeling and drawings.
• Experience with composite part design, laminate definitions, and ply development.
• Knowledge of ASME Y14.5 / GD&T.

Responsibilities

• Design and develop aerospace mechanical and structural components and assemblies.
• Perform detailed design of composite and metallic components with weight, performance, manufacturability considerations.
• Develop composite laminates, ply definitions, and layups.
• Create and modify 3D models and drawings using Siemens NX.
• Prepare and release drawings per ASME Y14.5 / GD&T.
• Perform hand calculations and basic FEA to validate concepts.
• Collaborate with manufacturing and assembly teams to support fabrication and integration.

Skills

Siemens NX

Composite design

3D modeling

Mechanical design

ASME Y14.5 / GD&T

Education

Bachelor's in Mechanical or Aerospace Engineering

Tools

FEA

Drafting/ drawings

Job description

Senior Mechanical Design Engineer - Aerospace

Location: Oxnard, CA | Onsite Salary: $145,000 DOE | 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 Y14.5 and GD&T.
• Ability to perform engineering hand calculations and basic structural analysis.
• Strong problem-solving, communication, and cross-functional collaboration skills.

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.

Compensation & Benefits

• Salary: $145,000 DOE
• Health insurance benefits.
• Retirement 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.

Johnson Service Group (JSG) is an Equal Opportunity Employer. JSG provides equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, marital status, protected veteran status, or any other characteristic protected by law.