Senior Mechanical Engineer

COMFORT SYSTEMS; Beavercreek (OH); Hybrid; USD 131,000 - 237,000; Full time

Job summary

Leidos is seeking a Sr. Mechanical Engineer to lead designs and testing for ISR payloads in Beavercreek, Ohio. You will review designs, coordinate with USG customers, and oversee assembly and testing activities.

The role requires a strong background in mechanical engineering standards, MIL specs, and multi-disciplinary teamwork with the ability to obtain TS/SCI clearance. Occasional telework may be available.

Qualifications

• Bachelor’s degree in Mechanical Engineering or equivalent field with 12+ years experience or Master’s with 10+ years.
• Secret Clearance currently required with ability to obtain TS/SCI clearance.
• Experience leading engineers on programs or projects.
• In-depth understanding of MIL-HDBK-516, MIL-STD-8591, MIL-HDBK-810 and ASME Y14 standards.
• Ability to communicate requirements with structural analysts and aerodynamicists and review reports.
• Ability to work in a multi-disciplined team to develop solutions.
• Familiar with materials selection and fabrication tech (3+ axis machining, metal bending, 3D printing).
• Familiar with hand tools and ability to lift 40 pounds in testing environments.

Responsibilities

• Review designs and verify adherence to ASME Y14 standards for ME/EE team.
• Support design and integration of ISR sensors and payloads on ground and air applications.
• Lead projects, shaping designs from USG requirements and coordinating with USG customers.
• Brief USG customers at PDR/CDR or informal reviews.
• Coordinate with subcontractors to track progress and maintain timelines for tests.
• Assist portfolio manager in presenting capabilities and labor/cost estimates.
• Oversee design, build, and assembly of components during flight testing with Flight Test Manager.
• Provide CAD management and vendor evaluation support to engineering processes.
• Lead projects by translating USG requirements into feasible engineering solutions.

Skills

Leadership

MIL-HDBK-516

ASME Y14

3D modeling

CAD management

System integration

USG liaison

Team collaboration

Education

Bachelor’s degree in Mechanical Engineering

Master’s degree

Tools

PTC Creo Parametric

Windchill

Job description

Description

The Defense Sector at Leidos currently has an opening for a Sr. Mechanical Engineer to work in our Beavercreek, Ohio office. This is an exciting opportunity to use your experience supporting government contracts and IRAD programs. In this mission we design, build, integrate, and perform test demonstrations of new and emerging technologies and capabilities.

Please note: This position is located in Beavercreek, OH. There may be occasional opportunity to telework during the week.

Primary Responsibilities:

• Review designs, drawings, and verifying adherence to ASME Y14 standards for the ME/EE team

• Support the design and integration of ISR sensors and systems payloads on various ground and air based applications

• Take on the role of project lead where a Mechanical Engineer is required. This involves shaping designs and solutions from USG requirements and working with USG customers to ensure requirements are met.

• Briefing USG customers at either formal (PDR, CDR) or informal design reviews.

• Meet with subcontractors to track technical progress, coordinate manufacturing efforts and maintain timelines to ensure successful tests.

• Support the portfolio manager to meet with brief potential customers on Leidos’ capabilities and provide labor and cost estimates.

• Oversee design, build, assembly of components and payloads during flight testing events and coordination with the Flight Test Manager

• Provide support with engineering process development, CAD management, and vendor evaluation/quality management

• Take on the role of project lead where a Mechanical Engineer is required. This involves shaping designs and solutions from USG requirements and working with USG customers to ensure requirements are met.

Basic Qualifications:

• Bachelor’s degree in Mechanical Engineering or similar field with 12+years of experience or Master’s with 10+ years of prior relevant experience.

• Must currently have a Secret Clearance be able to obtain and maintain a TS/SCI Clearance.

• Experience serving as a lead engineer on programs or projects.

• In-depth understanding of Military Specifications (MIL-HDBK-516, MIL-STD-8591, MIL-HDBK-810) and Mechanical Engineering Standards (ASME Y14)

• Ability to communicate requirements with Structural analysts and aerodynamicists and review analysis reports.

• Ability to work within a team to develop solutions that require a multi-disciplined team collaboration

• Foundational material selection and fabrication technologies (3+ Axis machining, metal bending and forming, 3D Printing, etc.)

• Familiar with common hand tools (screw drivers, drills, wrenches)

• Ability to lift 40 pounds and work in unairconditioned environments during flight testing events (less than 1 month a year)

• Ability to work independently and as part of a multi-disciplined engineering team

• 3D modeling, drawings, and life cycle management tools

Preferred Qualifications:

• Experience with composites (carbon fiber, fiberglass) and composite processes and designs

• Familiar with PTC Creo Parametric and Windchill

• Experience with airworthiness processes for military flight releases or commercial aviation

NKE

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:

September 2, 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

More details are available at www.leidos.com/careers/pay-benefits .

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

REQNUMBER: R-00191069

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.