Full-Time

Senior Prototype Engineer

Welding

Posted on 5/10/2026

Panthalassa

Panthalassa

51-200 employees

Autonomous floating wave-energy generators for power

Compensation Overview

$100k - $175k/yr

+ Equity + Relocation assistance

Portland, OR, USA

In Person

Relocation assistance to Portland, OR.

Category
Hardware Engineering (1)
Required Skills
CAD
Requirements
  • 5+ years of professional welding and fabrication experience
  • Degree in Welding Engineering, Mechanical Engineering, Manufacturing Engineering, or equivalent hands-on experience
  • Demonstrated experience with bending and sheet metal fabrication
  • Professional CAD experience (NX preferred)
  • Ability to read and interpret weldment drawings and engineering documentation
  • Demonstrated hands-on experience welding using FCAW processes
  • Experience with non-destructive evaluation methods, preferably ultrasonic testing (UT)
  • Experience working across a wide range of manufacturing processes and materials
  • Ability to follow instructions precisely and push back when instructions are incomplete or incorrect
  • Strong written and verbal communication skills
  • Self-directed work ethic with the ability to operate independently
  • Demonstrated drive for continuous improvement in tools, processes, and organization
  • Proficiency with standard computer software (word processors, spreadsheets)
  • Comfortable using a computer for documentation, communication, research, and basic data management tasks
Responsibilities
  • Design and manufacture prototype and production hardware using welding, machining, CAD, and additive processes
  • Fabricate and weld structural assemblies from engineering drawings
  • Develop and document production processes, work instructions, and shop capabilities
  • Provide direct DFM feedback to design engineers to improve manufacturability and cost
  • Design and build fixturing to support repeatable fabrication and assembly
  • Maintain shop organization, tooling systems, and equipment readiness
  • Enforce and model a strong safety culture in daily work
  • Order supplies and equipment; research tools, materials, and techniques to improve shop performance
  • Create and maintain documentation systems using standard office software
  • Support other teams as needed, including facilities, logistics, and operations
Desired Qualifications
  • Experience building hardware for harsh environments such as marine, aerospace, or heavy industrial systems
  • Experience developing new shop layouts or scaling fabrication capabilities in a growing organization

Panthalassa designs autonomous, floating energy nodes that harvest power from open-ocean waves. Each node is a solid sphere about 50 meters in diameter with a neck extending 60–70 meters below the surface; wave motion pumps seawater into a pressurized reservoir and drives electricity through a single turbine for onboard use. The system emphasizes a simple, rugged solid‑state design and offshore, autonomous operation, with modular, marine-based energy generation aimed at a high capacity factor (up to 90%). Its goal is reliable, ocean-based power for on-site applications and scalable sea-based energy infrastructure for clean power and fuels, supported by funding from investors like Founders Fund, Gigascale Capital, and Lowercarbon Capital.

Company Size

51-200

Company Stage

Series B

Total Funding

$218.1M

Headquarters

Portland, Oregon

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • Raised $140M Series B from Peter Thiel in May 2026 to build Portland pilot factory.
  • Successful Ocean-1, Ocean-2, Wavehopper sea trials in 2021 and 2024 de-risk Ocean-3 deployment.
  • Targets AI data center boom with $0.02/kWh wave power and ocean cooling.

What critics are saying

  • CorPower Ocean's efficient converters capture European market share within 12 months.
  • Aikido's hybrid wind platforms steal AI partnerships from Panthalassa in 6 months.
  • Starcloud's $1.1B space data centers obsolete ocean tech within 24 months.

What makes Panthalassa unique

  • Panthalassa deploys 50-meter spherical nodes harnessing open-ocean waves for onsite power.
  • Nodes power AI compute clusters and green hydrogen production directly at sea.
  • Ocean-3 platform transmits data via low-Earth-orbit satellites without land cables.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Disability Insurance

Flexible Paid Time Off

401(k) Retirement Plan

401(k) Company Match

Relocation Assistance