Senior Mechanical Engineer

Leidos; Lynnwood (WA); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

The Maritime Systems Division (MSD) at Leidos in Lynnwood, WA is seeking a Senior Mechanical Engineer to lead design and analysis of UUV mechanical systems, including propulsion, structure, payloads, and launch/recovery. You will mentor junior staff, create detailed 3D models in Solidworks, and produce ASME-compliant drawings for manufacture. Applicants should have a B.S.

or M.S. in Mechanical Engineering with extensive experience in structural, thermal, and hydrodynamic analyses, and be capable

Qualifications

• Requires B.S. in mechanical engineering and 8–12 years of relevant experience, or an M.S. with 6–10 years.
• Ability to obtain Secret clearance or higher.
• Experience with Solidworks and Solidworks PDM Pro.
• Experience creating ASME Y14.5 drawings.
• Experience performing thermal, structural, and hydrodynamic analyses.

Responsibilities

• Lead design and analysis of mechanical systems in UUVs (propulsion, structure, electronics).
• Mentor junior engineers and provide technical leadership.
• Create 3D models and detailed drawings using Solidworks and PDM Pro.
• Perform structural, thermal, hydrodynamic analysis with hand calcs and software.
• Collaborate with electrical, software, and systems teams; support testing at sea.

Skills

Solidworks

Solidworks PDM Pro

ASME Y14.5 drawings

Finite element & CFD analysis

ANSYS

COMSOL

Thermal & Structural analysis

Hydrodynamic analysis

Leadership / mentorship

Strong communication

Education

B.S. in Mechanical Engineering

M.S. in Mechanical Engineering

Tools

ANSYS

COMSOL

Solidworks

Solidworks PDM Pro

Job description

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 8 – 12 years of prior relevant experience or M.S. degree in mechanical engineering or closely related field and 6 – 10 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. 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.

Pay Range

Pay Range $107,900.00 - $195,050.00 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.

About Leidos

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 $17.2 billion for the fiscal year ended January 2, 2026. 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 here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.