Senior Model Based Definition Engineer (Secret Clearance)

Quest Defense; Cincinnati (OH); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Competitive pay

Medical/dental/life and disability

401(k) with employer match

Professional development support

Flexible workplace

Job summary

Quest Defense is seeking a Model Based Definition Engineer to design 2D and 3D representations and MBD within Siemens NX and Teamcenter for aero-engine components.

You will collaborate with cross-functional teams to set tolerances, analyze root causes, and support design reviews while supporting manufacturing processes with GD&T precision. A strong aerospace background with 3+ years of aero-engine modeling is preferred.

Qualifications

• Bachelor's degree in Mechanical or Aerospace Engineering from an accredited institution or equivalent experience.
• Minimum 3 years in 3D modeling of aero-engines and gas turbine components; Siemens NX/Teamcenter preferred.
• Strong understanding of ASME Y14.5 GD&T and interpreting technical drawings.
• Excellent verbal and written communication; able to engage with teams at all levels.
• US citizenship required; ability to obtain Secret clearance.

Responsibilities

• Design 2D cross-sections and 3D models; create Model-Based Definitions (MBD) in Siemens NX and Teamcenter.
• Aid in redesign of externals components, investigate failures, and participate in design reviews.
• Conceptualize and design gas turbine external components and push engineering boundaries.
• Collaborate with cross-functional teams to define constraints and tolerances for manufacturing.
• Apply GD&T to drive quality, speed, and precision improvements.
• Manage CAD/CAM projects to meet budget and schedule with uncompromising quality.

Skills

3D modeling

NX/Teamcenter

GD&T

Technical drawings

Clear communication

Security clearance eligibility

Education

Bachelor's in Mechanical or Aerospace Engineering

Tools

Siemens NX

Teamcenter PLM

Job description

Embark on a journey where your engineering prowess shapes the future of aerospace innovation. We're seeking a dedicated Model Based Definition Engineer to join our team, contributing to the next generation of jet engine technology.

Why You'll Love This Role

Cutting-Edge Projects: Be at the forefront of aerospace design, working on components that redefine flight.

Collaborative Environment: Join a team that values precision, innovation, and shared success.

Professional Growth: Enhance your skills in a role that offers both challenges and opportunities.

What You'll Do

• Design Excellence: Create detailed 2D cross-sections, 3D models, and Model-Based Definitions (MBD) within Siemens NX and Teamcenter environments.
• If required, aid in the redesign of various externals components, support the investigation of root cause for failures, and subsequent design reviews.
• Innovative Development: Conceptualize and design gas turbine external components, pushing the boundaries of engineering.
• Collaborative Engineering: Work with cross-functional teams to define dimensional constraints and geometric tolerances, ensuring optimal manufacturing processes.
• Quality Assurance: Utilize Geometric Dimensioning and Tolerancing (GD&T) to drive improvements in quality, speed, and precision.
• Project Management: Navigate CAD and CAM environments, managing projects within budget and schedule, delivering uncompromising quality.

Qualifications

• Educational Background: Bachelor's degree in Mechanical or Aerospace Engineering from an accredited institution or equivalent experience.
• Experience: Minimum of 3 year in 3D modeling of aero-engines and gas turbine components; proficiency in Siemens NX/Teamcenter preferred.
• Technical Skills: Strong understanding of ASME Y14.5 Geometric Dimensioning & Tolerancing; ability to interpret technical drawings.
• Communication: Excellent verbal and written communication skills; ability to engage with team members at all levels.
• Security Clearance: U.S. citizenship required; active Secret Clearance or ability to obtain one.

Preferred Qualifications

• Advanced Degree: Bachelor's in Science, Technology, Engineering, or Mathematics (STEM) with 1-3 years of product definition experience.
• Software Proficiency: Experience with Siemens NX CAD Drafting and MBD, and Teamcenter PLM in designing mechanical engine components.
• Experience in adoption and/or integration of emerging technologies (e.g., generative AI, automation platforms, digital assistants) into day-to-day operations for continuous improvement.

Physical Requirements & Work Environment:

• Mostly Office Environments, Occasional Shop Floor involvement.
• Substantial amounts of telephone, video conferencing and computer work.
• Heavily Regulated Industries with strict adherence to procedures.
• Flexibility to meet business deadlines by staying late or arriving early.
• Typical 8 hour days plus lunch / 40 hour weeks / core (required) hours are 9AM to 4PM
• Ability to get to customer locations to visit customer locations.

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions

The QDSS Advantage:

At QDSS, our advantage is purpose-driven work, collaborative teams, and complex challenges that push boundaries and build lasting impact. You’ll grow your career while contributing to mission-critical programs that demand excellence and shape the future.

What You’ll Find Here

• Work That Matters – Next-generation, safety- and mission-critical projects where your contributions have real-world impact.
• Growth That’s Supported – Competitive compensation, employer-matched 401(k), certification assistance, and clear opportunities for advancement.
• A Culture That Works – A flexible, collaborative, and people-first environment where teamwork, innovation, and balance are valued.

Benefits Include

• Competitive pay, comprehensive medical/dental/life and disability coverage, 401(k) with employer match, professional development support, and a flexible, friendly workplace.