Panthalassa

Senior Mechanical Engineer, Fluid Systems

Portland, OR · Senior · Full-time

Sponsorship not specified$155k-$205kDetected 14 days ago

PythonNode.jsGD&TMechanical DesignAerospace EngineeringCommunicationProblem SolvingRenewable Energy

About the role

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.

Own the design and development of critical fluid subsystems and components across all phases (concept through deployment)
Perform detailed design and analysis, including material selection, sizing, and system integration
Collaborate with staff and senior engineers to refine system architecture and integration strategies
Participate in design reviews and contribute to technical decision-making
Partner with testing teams to validate performance and iterate based on test and field data
Ability to collaborate effectively with engineers, technicians, and external partners
Experience contributing to multiple design-build-test cycles for complex systems

Degree in mechanical engineering, aerospace engineering, naval architecture, marine engineering, or a related field
5+ years designing components and subsystems for fluid systems across a range of applications
5+ years of 3D CAD modeling experience
Experience with complex, safety-critical, or high-performance fluid systems
Advanced degree in a relevant engineering field or equivalent additional experience
Proficiency with NX/Teamcenter or similar CAD/PLM tools
Familiarity with marine or offshore systems (e.g., hydraulics, welded structures, mechanical assemblies)
Experience with programming tools such as Python, Julia, or Mathematica
Knowledge of engineering standards such as ASME Y14.5
Ability to operate effectively in a fast-paced, iterative environment

About The Job
Candidates should have strong interpersonal skills and be able to thrive in a creative, scrappy, and collaborative environment.

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:
Unlimited, flexible paid time off and flexible working hours.
Health insurance (the company pays 100% of 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 401(k), health FSA, and dependent care FSA.

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.
We are seeking a Senior Mechanical Engineer, Fluid Systems to play a critical role in the design and development of the fluid systems that power our core technology, the "Node." The Node will operate in the worst conditions the world's oceans have to offer for years at a time without human maintenance or intervention and fluid systems are central to its performance and reliability.
In this role, you will own the design and delivery of critical fluid subsystems and components, working within the broader system architecture to ensure performance, reliability, and manufacturability.
You will contribute deep technical expertise across design, analysis, testing, and deployment, partnering closely with mechanical design, manufacturing, and test teams.
This role is ideal for a highly capable engineer who thrives in hands-on technical work, enjoys solving complex problems, and is motivated to build robust, real-world systems.
You will have significant ownership over your work while collaborating closely with senior technical leaders to refine system-level design decisions.
If you are an excellent engineer, regardless of your background, we want you to apply.

This listing is sourced directly from Panthalassa's careers page and normalized into a canonical job model.