Marine Mechanical Engineer I

Marine Mechanical Engineer Level 1

Business unit:

Gibbs & Cox, as part of the Maritime Surface Division at Leidos has an opening for a junior level Marine Mechanical Engineer at the Newport News, VA Location.

Position summary: Leidos Gibbs & Cox is seeking a Marine Mechanical Engineer Level 1 to support the design, analysis, and integration of marine mechanical systems for naval and maritime platforms. This entry-level role is suited for an engineer with foundational technical knowledge, strong analytical skills, and interest in supporting ship design, system development, and lifecycle engineering efforts.

Primary responsibilities:

• Works independently with direct supervision, or on project teams
• Performs calculations applying mechanical engineering principles, procedures, and criteria
• Develops analyses and prepares technical reports and other engineering documentation
• Develops ship propulsion and auxiliary system calculations and designs, and prepares technical purchase specifications for major equipment
• Develops test procedures to verify equipment and system performance
• Supports engineering activities for systems that may include main and auxiliary propulsion, fuel systems, lubrication systems, seawater and fresh water systems, and heating, ventilating, and air conditioning systems

Basic qualifications:

• Bachelor’s degree or equivalent education in Marine Engineering or Mechanical Engineering
• Foundational understanding of mechanical systems, thermodynamics, fluid systems, or shipboard systems
• Strong written and verbal communication skills
• Ability to work effectively in a team environment
• Experience with CAD and Microsoft Office applications

Preferred qualifications:

• Internship, co-op, academic project, or early career experience in marine, naval, or defense engineering
• Familiarity with ship design, piping, HVAC, propulsion support systems, or auxiliary mechanical systems
• Professional Engineering or Engineer in Training certification in Marine Engineering, Mechanical Engineering, or another applicable discipline.
• Proficiency in using industry-standard computer aided design, engineering analysis software tools, and Microsoft Office applications.
• Exposure to U.S. Navy, shipbuilding, or maritime industry standards

Work environment: This role supports Leidos Gibbs & Cox engineering work in a collaborative environment focused on maritime and defense solutions.

Some travel to support specific customers and contracts should be expected, approximately 10%. Full time onsite. Open to flexible working arrangements after experience. Must be able to obtain a security clearance.

Company description: Leidos Gibbs & Cox delivers engineering, design, and maritime solutions in support of critical customer missions. As part of Leidos, Gibbs & Cox combines deep domain knowledge with broader enterprise capabilities to support innovation across defense and national security programs

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 31, 2026

Pay Range:

Pay Range $57,850.00 - $104,575.00

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.