Principal Mechanical Engineer, Aircraft Interiors

iO Associates; Indiana (PA); On-site; USD 130,000 - 150,000; Full time

Job summary

iO Associates is recruiting a Principal Mechanical Engineer for VIP aircraft interior completions, based on-site in Indiana. The role requires 15–20 years in completions engineering, deep expertise in fluid dynamics and stress substantiation, and solid CAD skills with SolidWorks.

You will lead mechanical direction, own technical decisions across design and integration, review outputs, and mentor the engineering team across multiple stakeholders. A relocation package is available.

Qualifications

• 15–20 years of completions engineering experience in aircraft interiors
• Proven leadership in complex VIP interior installations
• Strong fluids dynamics and stress substantiation expertise
• Proficient in SolidWorks

Responsibilities

• Lead mechanical engineering direction across complex VIP aircraft interior completion and modification packages
• Own technical decision making across design, stress substantiation, and integration constraints
• Review and guide engineering outputs including models, drawings, and analysis packs to ensure quality and compliance
• Act as the senior technical interface across engineering, design, production, quality, suppliers, and leadership
• Mentor engineers and raise technical consistency across the team

Skills

Fluid dynamics

Stress analysis

SolidWorks

Technical leadership

Tools

SolidWorks

Job description

Principal Mechanical Engineer, Aircraft Interiors (SME)

On site, Indiana | $130k - $150k + bonus + Relocation Package | Full US work authorisation required

iO Associates are partnered with a leading VIP aircraft completions organisation to appoint a Principal Engineer into its engineering function, driven by sustained demand across high‑value, highly bespoke interior modification programs.

This is a senior technical authority role, an SME, suited to an engineer has personally led complex mechanical engineering activity in an aircraft completions environment. The role is heavily weighted towards deep capability in fluids dynamics and stress, alongside strong CAD (SolidWorks is a must).

You will be the go to escalation point on technical decisions and will influence standards, methods, and delivery across multiple stakeholders.

You will be:

• Leading mechanical engineering direction across complex VIP aircraft interior completion and modification packages.


• Owning technical decision making and issue resolution across design, stress substantiation, and integration constraints.


• Reviewing and guiding engineering outputs including models, drawings, and analysis packs to ensure quality and compliance.


• Acting as the senior technical interface across engineering, design, production, quality, suppliers, and leadership.


• Mentoring engineers and raising technical consistency across the team.

You will need:

• 15 to 20 years of completions engineering experience


• Mechanical engineering background with aircraft interiors and installation exposure.


• Fluids dynamics experience


• Stress Analysis experience


• SolidWorks proficiency