Ocean Modeler

Ephemeral's mission is to restore our planet's climate and ocean. We do this by harnessing the ocean's natural ability to absorb and store carbon. By enhancing our ocean's alkalinity, we can remove gigatons of CO2 while simultaneously countering ocean acidification.

About the position

We are seeking an Ocean Modeler to help develop our Ocean Alkalinity Enhancement (OAE) methods, models, and projects for marine Carbon Dioxide Removal (mCDR).

Using modeling techniques ranging from coastal to global, and modern frameworks such as Julia and Oceananigans, you'll develop and run the models which allow us to quantify carbon removal and design coastal alkalinity deployments. Your modeling will also be fundamental to the development of our monitoring methods, and you'll play a key role in selecting our project sites and developing our MRV strategy.

Working closely with other scientists, engineers, and project developers, and along with our MRV partners and academic collaborators, you'll be part of a team turning the promise of OAE as a scalable, low-cost, and permanent method of carbon removal into a reality.

What you'll do

Develop and validate hydrodynamic and sediment transport/morphologic models to model the dissolution of an alkalinity release in near-shore settings

Use coastal, regional, and global models to model the dispersal of alkalinity and eventual air/sea re-equilibration to quantify CDR

Work with our team and MRV partners to develop observational strategies to constrain and validate models through field trials

Work alongside marine biogeochemists to develop alkalinity release strategies that ensure alkalinity dissolution, the avoidance of secondary precipitation, and ecological safety

Evaluate prospective project sites and develop alkalinity release plans for those sites

Participate in industry consortia to develop best practices and standards for applying ocean models to mCDR and MRV

Engage with communities, interest groups, and government officials to educate and garner support for Ocean Alkalinity Enhancement as a CDR method

You should have

PhD in Oceanography or a related field

3+ years experience working with ocean models at coastal, regional, and global scales

Experience with sediment transport models such as Delft3D

You've developed and validated new models, and have applied data assimilation to optimize models and estimate state

Experience nesting models and integrating them across scales

A solid understanding of biogeochemical models and ocean chemistry

You know how to develop and run models in a computationally-efficient manner

Experience with Julia or Oceananigans is a plus

A passion for taking OAE from concept to reality and restoring our climate and ocean

What we offer

Generous equity as an early employee

Health, dental, and vision benefits

401(k) plan

10 holidays annually + flexible PTO

The adventure of taking OAE from concept to reality

This is an on-site position in our Santa Clara, CA headquarters. We are open to candidates who wish to relocate, but not to hybrid or remote work. The expected salary for this position is $100,000 - $140,000 USD depending on experience.