Senior/Principal Mechanical Engineer (Primary Structures)

The role

You will design, build, test, and deploy load-bearing hardware for modular subsea geothermal power plants. This includes frames, foundations, lifting hardware, and pressure-tolerant structures.

What you will do

• Own specific elements of the primary structure end to end
• Define structural load cases from first principles
• Size structures with hand calculations and FEA
• Design pressure-tolerant and pressure-compensated structures
• Design lifting, rigging, deployment, and recovery hardware
• Select materials and corrosion strategies for seawater exposure
• Own weld design and fabrication
• Build and test development articles and qualify full structures
• Lead root-cause investigations on structural and housing failures
• Create detailed 3D CAD models, drawings, and tolerance stacks

Required qualifications

• Bachelor's degree in mechanical, aerospace, structural, or ocean engineering, or a related engineering discipline
• 6+ years of professional experience designing and analyzing load-bearing structures for demanding environments
• Ownership of at least one large structure from design through fabrication and fielded use

Nice to have

• Experience designing primary structures for subsea or offshore systems, submarines or naval vessels, launch vehicles or aircraft, or heavy industrial equipment
• Experience designing or analyzing pressure vessels, especially for external pressure, and familiarity with ASME VIII, DNV, or API
• Strong fundamentals in solid mechanics, structural dynamics, and fatigue
• Fabrication fluency: weld joint design, allowables, NDT and inspection, and tolerancing of large weldments
• Experience designing lifting and rigging hardware or working with marine operations
• Experience building test articles and running structural qualification tests
• Experience at a small or fast-moving hardware organization
• A track record of taking on increasing responsibility and delivering something difficult early in your career
• Experience on an engineering competition team (Formula SAE, Baja SAE, RoboSub, rocketry, or similar) or an equivalent self-directed hardware project

Benefits

• Health, Dental, and Vision insurance coverage
• Flexible PTO including 12 paid company holidays
• Travel to deployment sites along oceanic ridges
• Participate in sea trials and deployment operations
• Company-sponsored recreational dive certification
• Access to the company boat
• free meals and snacks

About the company

Endurance is building the world's first modular subsea geothermal power plants, converting vast thermal resources under the ocean into gigawatts of baseload power.