Mechanical Engineer (Vacuum & Mechatronics Focus)

About Us

We are a fusion materials startup based in London. We are a small team working within a

group focussed on delivering technologies to enable fusion energy. You will have real

ownership from day one of problems, decisions, and outcomes - alongside meaningful

equity. In return, we hope to see driven and rigorous work. Our colleagues keep a critical eye

on all decisions, want to support one another and can adapt to working on new tasks as the

need arises. We invite applications from a diverse range of backgrounds to give a range of

perspectives as we race towards bringing innovative, complex engineering solutions to

market. This environment is designed for people who want to do extraordinary work with the

potential for extraordinary impact.

Summary

We are looking for a talented Mechanical Engineer to design and develop precision

mechanical systems, with an emphasis on vacuum-compatible hardware and integrated

mechatronic solutions. This role combines advanced CAD design, vacuum system

engineering, and mechatronics integration for Materials Science and Engineering.

Key Responsibilities

● Create detailed 3D CAD models, assemblies, and manufacturing drawings for

mechanical components and systems using tools such as Fusion 360

● Design and specify vacuum systems, including chambers, pumping lines, seals,

flanges, valves, and ultra-high vacuum (UHV)-compatible components.

● Designing systems and procedures to work with hazardous materials and

maintain a clean and safe environment

● Select and integrate vacuum-compatible materials, finishes, and hardware to

achieve required vacuum levels and cleanliness.

● Develop mechatronic subsystems involving precision motion, actuators, sensors,

drives, and control integration.

● Perform engineering calculations, tolerance stack-ups, and basic

structural/thermal analysis to ensure design robustness.

● Support prototyping, assembly, testing, and troubleshooting of vacuum and

mechatronic hardware where not commercially available.

● Collaborate with electrical, controls, and manufacturing teams to deliver fully

integrated solutions.

● Liaising with industrial suppliers regarding vacuum/pressure systems

Qualifications & Skills

● MSc degree in Mechanical Engineering, Mechatronics, or a closely related field.

● 1-3+ years of relevant experience

● Experience in designing and analysing mechanical components and assemblies,

with proficiency in CAD

● Understanding of mechanical engineering fundamentals, materials selection, and

tolerance analysis

● Understanding and experience of precision engineering, materials science, and

manufacturability.

● Demonstrated ability to work with and manage external suppliers, with

multidisciplinary technical teams in fast-paced, dynamic settings.

● Experience designing for high-vacuum, ultra-clean, or controlled environments for

Materials Science and Engineering.

● Hands-on mindset with prototyping and testing experience.

● Familiarity with motion control systems, robotics, or automated equipment.

● Excellent problem-solving skills and attention to detail.

● Ability to work independently and in a small team