Do you want to contribute to the development of a new energy technology that can safely turn nuclear waste into emission-free energy? Are you excited about working in a hands-on deep tech start-up team that aims to make a huge impact? Do you like complex challenges? Then, we might be just the company you are looking for!

We are looking for a driven System Engineer to join our innovative and international team.

About Thorizon

At Thorizon, we're a passionate team of ~ 40 spread across Amsterdam and Lyon, all working together to develop nuclear power solutions. We design and create frontier technology for Molten Salt Reactors (MSR).

Our purpose is to accelerate the availability of clean energy and help solve the climate crisis.

We are in the development phase and aim to solidify our design through analyses, experiments, simulations, and partnerships. At Thorizon, we believe a strongly coupled multidisciplinary technology development requires a culture of full openness and transparency. That's why we foster values like unity, communication, and support to ensure we grow together as a team while achieving our purpose.
Your mission

Are you passionate about developing systems and components for application in a MSR (Molten Salt Reactor) ? Do you have a flair for innovative ideas and providing solutions to complex problems ?

As a Medior Engineer you will advance the Thorizon One design by strong cross-functional teamwork. You will deliver the design of specific reactor (sub)systems and components and interact with subcontractors and suppliers. Based on your engineering background you can develop a strong technical understanding of the reactor concept which allows you to execute short term engineering activities in line with our long-term mission.

You have a strong content on nuclear technology, system engineering, with thorough technical background and experience on nuclear process system, heating/cooling system, knowledge on nuclear safety (knowledge of ISO 15288) and combine this with excellent teamwork, people and stakeholder management and communication skills.

This role is based in Lyon.
In this role you will:

• Work in cross-functional workstreams in the development program (typically a project-based team of ~3-6 engineers from different disciplines such as nuclear engineering, core physics, thermal hydraulics, chemistry)

• Work on one or more assigned (sub)systems / components, towards quarterly priorities in line with the long-term program deliverables.

• Define, validate and verify (functional) requirements for the system, optimize the design to deliver on those requirements, and manage trade-offs in the design envelope. (e.g., reliability, performance, lifetime, costs) while continuously ensuring maximum safety.

• Initiate projects with our expert engineers that support you with analyses, validation, verification and qualification.

• Inspect the market on different technologies and different suppliers

• Select, qualify and manage external contractors that support you in your mission.

• Deliver system documentation, prepare design reviews, and ensure system integration.
• Build documentation and presentation to enable licensing discussion with safety authorities.
• Conduct engineering work for these workstreams (e.g., component and system design, computer models and analyses to simulate safety and performance)
• Support program management by coordinating meetings, communicating with external partners, and leading specific projects.
• Work very closely with your team leader (Nuclear Island System Lead), the program office, COO, CTO, and the rest of the teams in Lyon and Amsterdam
• Report to the System Lead, in the COO line

About you:

• You are a strong generalist engineer that likes challenging and multidisciplinary projects.
• You have over 7 years of working experience in nuclear system design (Liquid process systems design or gas system design)
• Knowledge and understanding of these disciplines are mandatory to succeed in the role: mechanical, neutronic, chemistry (corrosion), thermodynamic, structural
• You are an all-round engineer that uniquely combines content expertise, great communication and interpersonal skills:
• You can strategically connect the dots between design drivers in a complex multi-disciplinary project. You can zoom in and out, connecting strategy and objectives to concrete requirements, roadmaps, and actions.
• You are a solution-oriented go-getter who positively drives forward,
• You have strong stakeholder management skills and taking ownership of deliverables.
• You are agile in working, and comfortable in a fast-moving pace of a technological scale-up. Ideally you have been actively involved in the set-up of a new design.
• You are excited by pioneering and a path finder for the design. You are a fast learner that has the potential to lead complex topics.
• You have a master's degree in engineering.
• You are an excellent communicator (clear is kind) in English, both spoken and written. French and/or Dutch would be considered a strong plus.
• You are willing to travel between Lyon and Amsterdam.
• You have an intrinsic motivation to make an impact and want to contribute to a responsible energy supply

What can you expect from us?

• Dynamic and ambitious team of nuclear technology professionals that are committed to solving today's energy challenges.
• Unique experience in a fast-growing VC-backed deep tech start-up
• Opportunity to work on a game-changing technology that reduces our carbon footprint and nuclear waste streams.
• Competitive salary and an employee profit-sharing plan
• International work experience
• Office in the heart of Amsterdam or Lyon next to the Central station, including start-up vibes, office amenities, Thursday drinks and quarterly team events.

Does this sound like a match?

We are looking forward to your application!

Thorizon takes responsibility to make our company more inclusive. We need all ideas to realize our mission and want everyone to feel at home in our team.