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Senior Thermal Engineer



Software Engineering
Oakland, CA, USA
Posted on Thursday, July 4, 2024
Note: This position can be located either at our Oakland facilities or remote (anywhere in the U.S.).

About Magrathea

Magrathea is a California technology company with a mission to radically reduce the socioenvironmental impacts of producing structural metal from natural resources. We are doing this by developing a new generation of electrolytic process technology for making carbon neutral magnesium metal from seawater and brines. We are backed by the most sophisticated energy and materials technology investors on Earth. This includes the earliest supporters of Tesla and SpaceX, a portfolio of major industrial families from across Europe, and the US federal government. Find out more on our website.

What’s in it for you?

You’ll be working with a global, diverse team of smart, creative people who are looking to challenge the status quo of today’s industry to positively impact the socioenvironmental impacts of making structural metal. Check out some of our team on Linkedin .

There will be no waiting around, you’ll get stuck in from day one. This is a key role in our team, and you’ll be instrumental in driving the next steps of Magrathea’s technology. If you're passionate about pursuing and cultivating innovation through cutting edge technology, we should talk!

About The Role

  • Oversee the design, fabrication, and commissioning of novel furnace process technologies for innovative molten salt processing for making metal .
  • Lead the design process through multiple stages including conceptual design through detailed design, construction and testing ; while coordinating technology partners , consultants, and team members .
  • P resent updates, decisions, and technical information to a range of stakeholders including management, our engineering team, and external parties in order to make the best possible decisions for building Magrathea ’s novel th ermal equipment.
  • Project manage and support in executing the creation and development of complex technical products including 3D CAD designs, specifications, drawings , and perform tolerance analyses .
  • Develop and implement evaluation plans at each step of the fabrication process for QAQC .
  • Perform thermal and structural simulations of new mechanical components and systems.
  • Produce and support the production of detailed construction and fabrication drawings to deliver to fabricators for on time delivery.
  • C oac h , direct , check , and drive continuous improvement in the work of other engineers on our team.


  • Experience developing design, prototyping, construction, and operation of furnace process technology.
  • Experience in stakeholder management of coordinating internal and external technology partners.
  • Experience solving tough manufacturing problems in several of the following areas: structural design, thermal engineering, fluid dynamics, and product engineering.
  • Detailed component specifications with a focus on large machinery. Formal GD&T training preferred.
  • Deep knowledge and experience of sealing material connections at over 700ºC in the presence of corrosive molten salts and oxidizing gases for use cases such as heat treatment, metallurgy, energy, or other applications.
  • Design and construction of refractory composite systems.

Ideal Background

  • BS or MS in mechanical, materials, industrial, or chemical engineering with 10 years+ experience working with high temperature thermal systems, refractories, and molten materials.
  • Creative and open-minded with the ability to rapidly learn about and think through complicated problems generating hypotheses for their resolution.
  • Ability to work on a team to achieve audacious goals together.
  • History of promoting company culture based on respect, care for the success of team members, and zeal for innovation with a demonstrated passion for mitigate the impacts of climate change.


  • Competitive stock option package
  • Health insurance
  • 401k with pre- and post-tax investing options
  • Our compensation reflects the cost of labor across several U.S. geographic markets, and we pay differently based on those defined markets. The U.S. pay range for this position is $100,000 - $200,000 annually. Pay within this range varies by work location and may also depend on job-related knowledge, skills, and experience. Our Director of People can share more about the specific salary range for the job location during the hiring process.

How To Apply

Apply online through our website .


Magrathea is committed to providing a professional work environment free from discrimination and harassment, including discrimination and harassment based on a protected category, and an environment free from retaliation for participating in any protected activity. Magrathea is committed to providing equal employment opportunities to all employees and applicants for employment.