Mechanical Design / Checker

Leidos; Huntsville (TN); On-site; USD 131,000 - 237,000; Full time

Job summary

Leidos in Huntsville, AL is seeking an experienced Mechanical Designer/Checker to support hypersonic and defense portfolios. You will verify drawings meet ASME Y14.100, review GD&T per ASME Y14.5, and ensure 3D models align with program standards and drawings.

You will also participate in Table Top Review meetings, coach junior designers on best practices, and help ensure engineering data integrity across complex assemblies.

Qualifications

• Bachelor of Science in Mechanical Engineering or Aerospace Engineering from an ABET-accredited university with 12 to 15 years of prior relative experience.
• Associate’s degree in Design/Drafting with 14-17 years of relevant experience, or 16+ years of relevant experience in lieu of a degree.
• Advanced knowledge of Geometric Dimensioning and Tolerancing (GD&T) per ASME Y14.5.
• Strong knowledge of all Y14 basic engineering drawing standards per ASME Y14.100.
• Working knowledge of at least one 3D CAD package.
• Strong written and verbal communication skills.

Responsibilities

• Ensure drawings meet Y14.100 and program standards.
• Check 3D models for accuracy against drawings and program standards.
• Attend Table Top Review (TTR) meetings.
• Provide constructive feedback to junior designers.
• Coach junior designers on Y14.5 best practices.

Skills

GD&T knowledge

Y14.5 proficiency

3D CAD

Communication skills

Mentoring juniors

Education

ABET-accredited B.S. in Mechanical or Aerospace Eng

Associate degree in Design/Drafting

Tools

Windchill PLM

SolidWorks

Creo

Job description

Leidos’ Defense Systems Mechanical Design & Analysis Department

is seeking an experienced Mechanical Designer/Checker to support our growing hypersonic and defense portfolios.

In this role, you will be responsible for ensuring all technical drawings are complete and compliant with ASME Y14.100 standards and program-specific requirements. You will leverage your advanced knowledge of Geometric Dimensioning and Tolerancing (GD&T) principles per ASME Y14.5 to review and validate complex dimensional schemes used in technical drawings.

Additionally, you will verify that 3D models adhere to program standards and ensure accuracy and consistency between models and their corresponding drawings.

Primary Responsibilities

• Ensure drawings meet Y14.100 and program standards
• Check 3D models for accuracy against drawings and for conformance with program standards
• Attend Table Top Review (TTR) meetings
• Provide constructive feedback to junior designers
• Coach junior designers on Y14.5 best practices

Basic Qualifications

• Bachelor of Science in Mechanical Engineering or Aerospace Engineering from an ABET-accredited university with 12 to 15 years of prior relative experience or:
• An Associate’s degree in Design/Drafting with 14-17 years of relevant experience, or 16+ years of relevant experience in lieu of a degree.
• Advance knowledge of Geometric Dimensioning and Tolerancing (GD&T) principles per ASME Y14.5
• Strong knowledge of all Y14 basic engineering drawing standards as defined in ASME Y14.100
• Working knowledge of at least one 3D CAD package.
• Strong written and verbal communication skills

Preferred Qualifications

• Windchill PLM experience
• Advanced Knowledge of SolidWorks
• Advanced Knowledge of Creo
• Team leading skills

If you’re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We’re not hiring followers. We’re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We’re already at step 30 — and moving faster than anyone else dares.

Original Posting:

August 25, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.