Research and Development Internship, London

At ToffeeX, we’re building a new generation of engineering design tools. Our cloud‑based platform uses physics simulations, generative design, and optimization algorithms to reimagine the way components like heat exchangers, cold plates, and manifolds are created. We’re trusted by some of the world’s most advanced engineering teams across a wide range of industries — and we’re growing fast.

• Duration: 3, 6, or 12 month options available
• Who it’s for: Undergrads, postgrads, PhD students who need a break!
• Deadline: Applications continuously open and reviewed on a rolling basis

Are you an ambitious undergrad, postgrad, or PhD student looking for a unique opportunity to build something impactful? At ToffeeX, you’ll join a small team of scientists, engineers, mathematicians, and software developers for a hands‑on R&D internship.

For our internship programme we are not offering pre‑defined projects. Instead, we’re giving you the tools, resources, and the freedom to explore a free topic that aligns with our work in engineering, mathematics, physics, and computer science.

You will choose a topic (with our guidance), get access to our tools, data, engineering infrastructure, and know‑how, and then spend your time building something new.

We believe failure and iteration is a feature of good R&D; we’d enjoy spectacular failure just as much as a safe win. This programme will give you the space and mentorship to explore your most ambitious research ideas with serious technical depth and creativity.

• Builders – whether it’s on competition teams, personal projects, open source, hardware builds, or exploratory research, you’ve got a track record of making things and putting them in the hands of other people.
• Self‑starters – with initiative and imagination. You enjoy figuring stuff out on your own, but know when to ask for help and are receptive to mentorship.
• A background in engineering, physics, maths, computer science, comfortable working in our complex problem domain.

• Freedom to define and pursue your own R&D direction
• Access to our advanced software and computational resources.
• A chance to build something to shape our platform, workflows, or tech
• Mentorship from the engineers, physicists, and designers at ToffeeX
• A flexible internship structure that fits around your academic calendar

We are not hiring research projects. We are hiring people with a strong aptitude for innovation, rather than selecting specific research projects. Please do not send us a research proposal at this stage — your project will evolve from your unique interests and our collaborative discussions.

If you are applying to this role please ensure you send us:

• A portfolio, GitHub link, or examples of things you’ve built, explored, or created
• A full CV