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Mechanical Engineer, Marine Operations

Panthalassa

Salary undisclosed

Portland, ORFull-timeOn-site

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Description

About the Company

We are a renewable energy and ocean technology company committed to rapidly developing and deploying technologies that will ensure a sustainable future for Earth by unlocking the vast energy potential of its oceans. Our focus is on capturing civilizational levels of ultra-low-cost renewable energy for applications including computing and affordable renewable fuels delivered to shore.

The company is a public benefit corporation headquartered in Portland, Oregon, and backed by leading venture capitalists, philanthropic investors, university endowments, and private investment offices. We operate as an idea meritocracy in which the best ideas change the company’s direction on a regular basis.

Our staff have worked at organizations such as SpaceX, Blue Origin, Boeing, Tesla, Apple, Virgin Orbit, Astra, Google, Amazon, Microsoft, New Relic, Bridgewater, Raytheon, Disney Imagineering, and the US Army and Air Force, as well as research universities, startups, and small companies across a range of industries.

About the Job

Our core technology is the node, a device that produces energy in the ocean’s harshest conditions for years at a time without human maintenance or intervention.

Once our nodes leave the manufacturing facility, they must be deployed, operated, and maintained safely and reliably across vast oceanic regions—all at an unprecedented scale and at reduced cost. As a Senior Engineer, Marine Operations, you will play a critical role in overcoming these challenges by designing, building, and testing bespoke support equipment that facilitates deployment, retrieval, inspection, and maintenance of our offshore assets.

In this role, you will drive the development of essential mechanical assets from cradle to grave. You will conduct trade studies to identify optimal system architectures, perform engineering analyses, create detailed designs, and bring these designs to operational readiness. Additionally, you will support offshore operators utilizing these tools through initial commissioning and sustaining engineering.

Engineers who are hands-on and solutions-oriented, with exposure to the breadth of mechanical disciplines, will thrive in this role. A passion for lifelong learning is a requisite. If you thrive in a high-stakes, fast-paced environment and are eager to develop the next generation of offshore energy infrastructure, we want to hear from you.

We strive to be the best engineering team on the planet, and we compensate our team accordingly.

Candidates should have strong interpersonal skills and be able to thrive in a creative, scrappy, and collaborative environment in which the best ideas change the company’s direction on a regular basis. You will own your designs cradle-to-grave, from first concept through fabrication and deployment at sea. If you are an excellent engineer, regardless of your background, we want you to apply.

Responsibilities

  • Serve as the Responsible Engineer for the development of novel marine support systems (aspects of these systems may include steel structures/weldments, mechanisms, pneumatics/hydraulics, and industrial controls/data acquisition).
  • Complete trade studies to identify preferred architectures/requirements.
  • Carry out relevant engineering analysis individually and manage the support of subject matter experts as required.
  • Detail the design of bespoke mechanical equipment (CAD modeling, development of schematics, etc.).
  • Execute and oversee the fabrication, testing, and commissioning of critical assets.
  • Support offshore operations through initial commissioning of new systems and sustaining engineering.

Required Qualifications

  • BS or higher in mechanical engineering.
  • Experience owning the development of novel hardware from concept through commissioning.
  • Excellent understanding of engineering fundamentals relevant to marine systems (welded structures, mechanical assemblies, hydraulics/pneumatics, industrial automation & data acquisition, etc.).
  • Demonstrated ability to solve problems that lack clear examples or well-defined requirements.
  • Capable of managing critical vendor relations.
  • Thrives in a culture of personal ownership.
  • Competent with 3D modeling software and design practices (Siemens NX preferred).

Desired Qualifications

  • Ability to perform structural FEA.
  • Understanding (or willingness to independently learn) the basics of data acquisition & industrial automation systems.
  • Exposure to Piping and Instrumentation Diagrams.
  • Experience overseeing and providing field engineering to fabrication campaigns.
  • Experience designing and executing qualification/acceptance test protocols to validate system performance.
  • Experience designing hardware utilized in an offshore environment.

Additional Requirements

  • Travel to vendors and test sites as needed.
  • Intermittently able to work longer hours and on weekends to support critical needs. While we expect a lot of each other, we also offer a high degree of autonomy and work-life balance, including unlimited PTO and flexible working hours.
  • Ability to travel offshore periodically to support the initial commissioning and first use of new equipment.

Compensation and Benefits

If hired for this full-time role, you will receive:

  • Cash compensation of $125,000 - $175,000.
  • Equity in the company. We’re all owners, and if we’re successful, this equity should be far and away the most valuable component of your compensation.
  • A benefits package that helps you take care of yourself and your family, including:
    • Flexible paid time off.
    • Health insurance (the company pays 100% of a gold-level PPO plan for full-time employees, their partners, and dependents).
    • Dental insurance (the company pays 100% for full-time employees and 100% for their partners and dependents).
    • Vision insurance (the company pays 100% for full-time employees, their partners, and dependents).
    • Disability insurance (the company pays 100% for a policy to provide long-term financial support if you become disabled).
    • Ability to contribute to tax-advantaged accounts, including a 401(k), health FSA, and dependent care FSA.
  • Relocation assistance to facilitate your move to Portland (if needed).

Location

This is an on-site position. Our offices, lab, and shop are located in Portland, Oregon.

Benefits

  • Cash compensation of $125,000 - $175,000.
  • Equity in the company. We’re all owners, and if we’re successful, this equity should be far and away the most valuable component of your compensation.
  • A benefits package that helps you take care of yourself and your family, including: Flexible paid time off.
  • Health insurance (the company pays 100% of a gold-level PPO plan for full-time employees, their partners, and dependents).
  • Dental insurance (the company pays 100% for full-time employees and 100% for their partners and dependents).
  • Vision insurance (the company pays 100% for full-time employees, their partners, and dependents).
  • Disability insurance (the company pays 100% for a policy to provide long-term financial support if you become disabled).
  • Ability to contribute to tax-advantaged accounts, including a 401(k), health FSA, and dependent care FSA.
  • Relocation assistance to facilitate your move to Portland (if needed).

About this role

Panthalassa is developing mechanical systems that deploy, operate, and maintain energy-producing nodes in extreme ocean environments. As a Senior Engineer in Marine Operations, you would own the full lifecycle of bespoke support equipment—from initial trade studies and detailed design through fabrication, testing, and offshore commissioning. The work spans welded structures, hydraulic and pneumatic systems, industrial controls, and data acquisition, requiring you to conduct engineering analyses, manage vendor relationships, and support field operations at scale and reduced cost.

This role suits engineers with a mechanical degree and proven experience shepherding novel hardware from concept to deployment. You'll need strong fundamentals in marine systems, proficiency with 3D CAD (Siemens NX preferred), and comfort solving open-ended problems without prescribed solutions. Hands-on problem-solving, structural analysis capability, and familiarity with offshore design considerations are valuable; willingness to learn data acquisition and automation systems independently is equally important. The position demands personal ownership, critical vendor management, and readiness to travel to fabrication sites and offshore locations for commissioning work.

Panthalassa offers $125,000–$175,000 in base compensation plus company equity, full-coverage health, dental, and vision insurance, unlimited PTO, and flexible hours. The environment is fast-paced and collaborative, drawing talent from aerospace, tech, and advanced manufacturing. You'll have autonomy balanced with the expectation to work extended hours when critical needs arise.

How this employer is doing

solid

  • Recently Raised Funding

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Pay for this role

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