Senior Materials Specialist

Copenhagen, Denmark

Drive Materials Qualification for Advanced Nuclear

At Saltfoss Energy we are developing a nuclear power plant concept fundamentally different from what exists today. By bringing to market an advanced molten salt reactor we are making nuclear an inexpensive, sustainable, and scalable technology that can make fossil fuels a thing of the past and revolutionise energy markets. The opportunity to make an impact on climate change and provide millions of people with cheap and accessible energy is what inspires all of us every day.

Creating an innovation that can impact the world isn’t easy and requires a diverse team bringing together a range of talents and perspectives. We know that we cannot do this alone, so we work closely with regulators, shipyards, academic institutions, and the nuclear industry from all over the world to develop technologies and materials so we can produce an advanced floating nuclear power plant.

This is your chance to become part of a collaborative research environment where you can chart an uncommonly diverse career and help change the world. Saltfoss’ work environment allows for great influence, the possibility to take on responsibility, and personal growth but also demands flexibility.

THE ROLE

The Senior Materials Specialist plays a key role in the qualification and verification of materials for Saltfoss Energy’s molten salt reactor program. This role is central to demonstrating that selected materials meet stringent design and performance requirements. Working cross-functionally with engineering and R&D teams, the specialist designs and oversees experimental campaigns, both internal and external, focused on the behaviour of materials exposed to molten salts under static and dynamic conditions. The position involves defining test objectives, validating material specifications, and ensuring that results directly support reactor design and licensing efforts.

KEY RESPONSIBILITIES & TASKS

Verify and validate design requirements related to materials by designing and conducting experiments to assess materials performance, particularly regarding combinations of mechanical stress and corrosion
Lead materials qualification and specification for components in the seaMSR-100 that are exposed to molten salts and/or irradiation.
Investigate and support through literature studies and experimental work in areas such as, but not limited to, stress corrosion cracking, welding, thermal aging, creep, irradiation damage, erosion, and molten salt corrosion.
Identify relevant codes and standards for research activities and ensure compliance of research with these standards.
Manage projects with external partners, including identifying and contacting suitable partners, scoping the work and managing the progress of projects to completion.
Keep informed of global developments in nuclear materials selection, attend workshops and webinars if required and establish and support collaborations with a wide range of internal and external stakeholders.

PROFESSIONAL COMPETENCIES

You have a Master’s degree or higher education within materials science, engineering, or similar education.
You have 5-10 years of industrial experience with experimental project work and materials selection in an R&D organization.
You can identify, analyze, and solve complex problems related to materials.
You can manage projects effectively, including planning, scheduling, and resource allocation.
Experience with molten salt chemistry is an advantage.
Experience working with materials for nuclear applications is an advantage.

PERSONAL COMPETENCIES

You effectively collaborate with your colleagues to solve technical and operational challenges.
You have a high sense of responsibility and accountability.
You have good organizational and time-management skills and can handle multiple tasks in parallel.
You are comfortable planning at multiple time horizons: from single test campaigns to multi-year materials qualification programs.
You are dedicated and used to producing quality work of the highest standard and reproducibility.
You are willing to learn, and help develop a growing team.

WHAT WE OFFER

The chance to work on ground-breaking technology that will impact the global energy landscape.
Working closely with globally acknowledged experts in the field.
An international and diverse team.
Personal and professional development opportunities and support.
Informal and flexible work environment.
6 weeks’ paid vacation per year.
In addition to Danish universal healthcare – private health insurance for certain medical expenses and procedures.
Employee warrant program.

WHERE

We are based in Copenhagen, Denmark - a dynamic, welcoming city consistently ranked among the world’s best places to live. In 2025, Copenhagen was named the world’s most liveable city by the Economist Intelligence Unit’s Global Liveability Index. We are open to supporting relocation for candidates based outside Denmark.

Denmark is known for its high quality of life and comprehensive social welfare system, and Danes consistently rank among the happiest people in the world. Copenhagen also stands out as one of the safest cities globally, making it an attractive place to live and work.

Read more about the benefits of living in Denmark here.

WANT TO JOIN THE TEAM?

Please submit a motivational letter and CV in English. There is no fixed deadline for applications, which we will review on a rolling basis. As we strive to have a neutral hiring process, please do not add a picture to your CV.

We look forward to reading your application!