Leidos’ Defense Mechanical Design & Analysis Department is seeking a Principal Engineering Designer to join our team in Huntsville Alabama designing the next generation of sensors to protect America and its allies. You will perform mechanical design of the Affordable Long-range Persistent Surveillance-Mobile product. You will use Solidworks CAD software and Windchill PLM software daily to turn ideas into designs. Then you’ll work alongside the production team to turn your designs into hardware. You might be asked to help integrate and install the hardware, and then you’ll work with the testing team to put your hardware into action. This is not your average engineering position. You will work on a team of the most talented engineers in the region who push you to be better every day. This is a fast-paced program with unique technical challenges that will be a rewarding milestone in any engineering career. If you are up for the challenge of joining this team, then apply today to be considered.

Are you ready to make an impact? Share your resume with us today!THE CHALLENGE (primary responsibilities)

• Structural design via Solidworks CAD software, drawing generation in accordance with ASME Y14.100 & Y14.5, and producing technical data packages in accordance with MIL-STD-31000

WHAT SETS YOU APART (basic qualifications)

• Bachelor of Science in Mechanical Engineering or Aerospace Engineering from an ABET-accredited university

• 12+ years of applicable experience or 10+ years with MS degree or 16 years experience in lieu of degree.

• Strong Solid Works user

• Active secret security clearance or ability to obtain and maintain secret security clearance

Preferred Qualifications

• Windchill PLM experience

• Design and/or Integration experience in the following areas:

Power generation

• Tactical shelter design

• Telecommunication towers

• Mobile tactical equipment

• Tactical trailers

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:

April 15, 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 only and 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.