Senior Ocean Engineer

Leidos is seeking a Senior Ocean Engineer to support cutting-edge engineering efforts within the Undersea Systems Division. This role is a unique opportunity to support design and maintenance of underwater infrastructure, system design for arrays of maritime sensors, and installation and recovery in an offshore environment in support of critical defense and national security missions.

You'll be a senior engineer supporting a multidisciplinary team developing and supporting customers with advanced maritime technologies, from production processes to prototype design with a focus on cradle to grave system design, build, installation, proof of concept, and maintenance.

Leidos’ Undersea Systems Division is a recognized leader in undersea technologies, delivering innovative, mission-critical solutions across sensor networks, unmanned systems, and tactical platforms. We’re known for achieving “industry firsts” in the most challenging maritime domains, as well as supporting well-developed processes and procedures to support excellence in execution for our customers.

Join us and be part of a world-class team delivering unmatched solutions for today's most pressing maritime missions.

Why Join Us?

·       Make a Mission Impact: See your work directly contribute to U.S. maritime dominance by delivering and sustaining critical systems the warfighter depends on.

·       Turn Capability into Readiness: Support proven technologies through production, integration, fielding, and long-term operational support.

·       Own Real-World Results: Solve the production, quality, supply chain, and sustainment challenges that determine whether complex systems are ready when the mission demands them.

·       Work with an Exceptional Team: Collaborate with engineers, manufacturing professionals, technicians, program teams, suppliers, and customers to deliver reliable systems.

·       Build Capability That Lasts: Help improve how we produce, support, upgrade, and sustain maritime systems throughout their operational lifecycle.

Primary Responsibilities

·       Be a senior engineer through the design, development, integration, testing, and deployment of advanced maritime and undersea systems, ensuring technical performance and mission success in challenging ocean environments.

·       Apply expertise in ocean engineering, hydrodynamics, underwater acoustics, marine systems, and environmental conditions to solve complex engineering challenges and optimize system performance.

·       Provide technical mentorship across multidisciplinary engineering teams, guiding system design decisions, resolving complex technical issues, and mentoring junior engineers.

·       Plan and execute engineering analyses, modeling, simulations, and laboratory and at-sea testing to validate system performance, reliability, and operational effectiveness.

·       Drive technical innovation and continuous improvement in underwater technologies, including autonomous systems, subsea sensors, oceanographic instrumentation, and maritime platforms.

·       Collaborate with program managers, customers, scientists, and engineering teams to translate operational requirements into practical, cost-effective technical solutions.

·       Lead technical investigations, root-cause analyses, and design improvements to address system performance, reliability, and integration challenges throughout the product lifecycle.

·       Serve as a senior technical contributor in design reviews, customer engagements, technical proposals, and strategic technology development efforts supporting maritime missions.

Basic Qualifications

•   Bachelor’s degree in Mechanical/Ocean Engineering/Naval Architecture or other related discipline.

•   15+ years of experience.

•   Experience with underwater/marine engineering and the unique applications of working in a maritime environment.

•   Experience with SolidWorks software.

•   Working ability to operate OrcaFlex, MathCAD, Matlab, and other analysis tools.

•   Experience in undersea hardware system development.

•   Effectively work with a team establishing strong, collaborative working relationships with government customers, technical staff, senior managers and peers.

•   Analytical and problem-solving skills, along with excellent written and oral communication skills.

•   Must have ability to obtain a Secret Security clearance

•   Must also be able to:

•   A.    Climb at least 50 feet of rung ladder to access various parts of a vessel as required

•   B.    Remain alert during extended working hours

•   C.    Perceive depth

•   D.    Drive a company vehicle

•   E.    Transit to and from a marine vessel including transiting up and down marina gangways at varying angles as needed during travel

Preferred Qualifications

•   Experience with cranes and weight handling operations at sea

•   Evaluation of the suitability of maritime assets for meeting project requirements

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:

November 2, 2026

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.