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About You
As a Graduate Mechanical Engineer, you will take full ownership of mechanical subsystems for our particle accelerator and target station hardware, carrying each project through design, analysis, manufacture, test, and integration.
You think in CAD and calculations first, but you don't stop at the drawing board - when a design needs proving out, you're just as happy on the shop floor, machining a part or brazing a joint yourself to get it right.
You are a generalist by nature, happy to move across the whole system rather than settle into one narrow piece of it, and you move with a sense of urgency, favouring building and testing over waiting for formal sign-off.
About StandardX
There is infrastructure that defines eras. The steam engine made the industrial world possible. The internet created an economy. StandardX is building the next one.
Many of the world’s most critical technologies rely on synthetic isotopes, yet the infrastructure used to produce them is ageing, fragmented, and increasingly unable to meet demand.
We're an elite team of nuclear engineers, deep tech operators, and doctoral-level scientists who have built the machine that fixes that. A single proprietary platform, deployable anywhere, producing the full portfolio of critical isotopes at scale.
Elite team. Massive problem. If you want to work on something that matters, really matters, this is it.
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Key Objectives
- Take full ownership of mechanical subsystems, from concept through design, analysis, manufacture, test, and integration.
- Develop hardware for particle accelerator and target station systems, including vacuum vessels, precision alignment systems, and support structures.
- Build and maintain the tooling that supports in-house manufacturing and integration.
- Move quickly and pragmatically, avoiding analysis paralysis and unnecessary process gates.
Your Responsibilities
1️⃣ Mechanical Design & Ownership
- Act as a Responsible Engineer with full ownership of your projects through design, analysis, manufacture, test, and integration.
- Develop mechanical subsystems for particle accelerator and/or target stations, including:
- Vacuum vessels
- Precision alignment systems for electromagnets and RF cavities
- Vacuum stages for diagnostics
- Support structures
- Facility radiation shielding
- Brackets to support pipes and/or electrical cabling
2️⃣ Analysis & Validation
- Perform static structural FEA and validate models against physical test results.
- Interpret and create mechanical drawings using GD&T, including tolerance stack-up analysis.
3️⃣ Hands-On Fabrication
- Machine your own parts on a mill or lathe.
- Design and build tooling to support in-house manufacturing and integration.
- Work confidently across manufacturing processes such as CNC, sheet metal, welding, and brazing.
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4️⃣ Speed & Pragmatism
- Move fast without waiting for formal readiness gates or excess process.
- Operate as a generalist across the full system rather than staying narrowly specialized.
Requirements
- Recent graduate with hands-on experience designing, building, and testing hardware (e.g., Formula Student, competitive university team, or startup experience).
- 1+ years of CAD experience with OnShape, SolidWorks, Fusion 360, NX, Catia, Creo, or similar.
- Experience with static structural FEA, including validating the model against physical test.
- Experience machining your own parts on a mill or lathe.
- Comfortable in a workshop with common hand tools and power tools.
- Full-time availability before the end of August.
- Willingness to work on-site in London.
Ideal Experience
- Experience interpreting and creating mechanical drawings with GD&T and performing tolerance stack-up analysis.
- Experience creating shell models in FEMAP.
- Knowledge of UHV systems - vacuum pump types and trade-offs, UHV interfaces, and design rules.
- Experience writing safety margin tables.
Benefits
- 🏥 Private Health Cover, with the option to add dependants.
- 🛡️ Life Assurance (Death in Service) at 4x salary.
- 💰 Salary sacrifice pension, with 4% employer contribution.
- 🚲 Cycle to Work Scheme.
- 📈 EMI Share Options.
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