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Open nowPosted yesterday

Senior Mechanical Engineer

Leidos1,887 open roles

Where
Lynnwood, WA
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Your applicationOpen nowSenior Mechanical EngineerLeidos · Lynnwood, WA

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The clock on this job

Early applications get read.

12.1% of postings close within 7 days. Measured by our own scanner across the market. Leidos postings stay open a median of 7 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.1%7 days
  4. 19.1%14 days
  5. 35.6%30 days
  6. 52.7%60 days
This job: posted yesterday

Leidos median: 7 days open

The posting

The Maritime Systems Division (MSD) at Leidos currently has an opening for a Senior Mechanical Engineer to work in our Lynnwood, WA office. This is an exciting opportunity to use your experience helping us serve our Navy customers in the design, build, and test of systems related to Unmanned Underwater Vehicles (UUVs).

Primary Responsibilities

Lead the design and analysis of mechanical systems related to Unmanned Underwater Vehicles (UUVs), including vehicle elements (propulsion, dynamic control, structure, electronics), mission payloads, and launch & recovery systems.

Work closely with junior mechanical engineers to provide mentorship and leadership.

Create 3D models of mechanical systems using Solidworks software to describe conceptual designs and fully detail critical designs. Create mechanical drawings per ASME Y14.100. Maintain models and drawings in Solidworks Product Data Management (PDM) Pro tool.

Perform structural, vibration, shock, thermal, and hydrodynamic analysis of conceptual and detailed designs using hand calculations and analysis software such as Solidworks, ANSYS and COMSOL.

Present mechanical designs and justify engineering decisions during engineering reviews both internally within the company and with external customers.

Collaborate with colleagues across other engineering disciplines (electrical engineers, software developers, and systems engineers) to help ensure complex systems meet customer requirements.

Work with manufacturing and test & evaluation teams to build prototype systems and conduct testing in the lab and out at sea.

Basic Qualifications

Requires B.S. degree in mechanical engineering or closely related field and 12 – 16 years of prior relevant experience or M.S. degree in mechanical engineering or closely related field and 10 – 14 years of prior relevant experience.

Able to obtain Secret clearance or higher

Strong organizational skills with attention to detail.

Ability to plan, prioritize and organize work.

Strong, effective, and professional communication (written/verbal) and interpersonal skills.

Capable of leading interdisciplinary technical teams.

Ability to take initiative in troubleshooting mechanical issues; creative in determining approach or action to take in non-routine situations.

Demonstrated experience with Solidworks and Solidworks Product Data Management (PDM) Pro.

Experienced in creating drawings to ASME standards, including applying Geometric Dimensioning & Tolerancing per ASME Y14.5.

Demonstrated experience performing analysis of mechanical systems (thermal, structural, and hydrodynamic) using hand calculations and commercial FEA/CFD software packages (Solidworks, Ansys, Comsol)

Background designing, building, and testing prototype and limited production hardware systems.

Ability to lift heavy objects, climb ladders, and work in enclosed spaces.

Preferred Qualifications

Maritime systems and/or ocean engineering experience greatly preferred.

Prior experience with unmanned underwater vehicles, operating and control systems and associated electronics/sensors, launch and recovery subsystems, and system-to-host interfaces, including acoustic ranging and communications.

Experience working with manual machine tools (mill & lathe) and fabrication equipment (saws, grinders, welders).

Experience with additive manufacturing processes (3D printing)

Familiarity working as part of an Integrated Product Team (IPT) on DOD programs of record.

Knowledge of subsea acoustic systems (projectors & hydrophones).

Experience designing for tight-tolerance optical systems.

Knowledge of corrosion processes and designing systems to operate long-term in corrosive environments.

Fiber optic telemetry experience.

SUBSEAMSS

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:

October 23, 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.

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