Laser Diagnostician

YOUR IMPACT

As a Laser Aided Plasma diagnostician you will be designing and building some of the most important diagnostics on the Alpha stellarator. This role provides a unique opportunity to work alongside other diagnostic experts, software engineers, fusion scientists, and fusion engineers, making a tangible impact on the future of clean energy. The role will require the management of the full product lifecycle of this important diagnostic form conception, through design, review, testing, installation, calibration, operation and maintenance on the Alpha stellarator.

WHAT YOU WILL DO

• Lead the design and build of the Thomson Scattering (TS) diagnostic to be deployed on the Alpha stellarator to measure spatial profiles of electron density and temperature.
• Lead the design and build of the plasma density diagnostic to be deployed on the Alpha stellarator to measure the line integrated electron density using a laser based two colour or dispersion interferometer.
• Develop a detailed diagnostic specification able deliver the measurement performance required.
• Work with the engineering team on Alpha to establish a robust implementation of the TS and plasma density diagnostics.
• Prepare and execute plans for all the steps required to implement the diagnostic and bring it into operations: design, procure, build, test, install, commission, calibrate, operate and maintain.
• Oversee and undertake/delegate/subcontract packages of work as part of the plan to ensure successful completion of the laser based diagnostics.

WHO YOU ARE

• A Master’s degree or higher in physics, engineering, or equivalent experience.
• Have experience using class IV lasers: a high energy (Joule level) pulsed lasers and/or high power CW infra-red single longitudinal mode lasers.
• Have worked on at least one laser based diagnostic instrument on a large infrastructure machine (accelerator, telescope, laser or fusion device)
• Strong knowledge of geometric optics and light propagation in optical systems.
• Experience of designing and building a Thomson scattering system and or an interferometer for a plasma device would be an advantage.
• Working knowledge of Python software development and modern tool chains (uv, git etc.)
• Experience using optical design software for ray-tracing would be an advantage

INTERVIEW PROCESS

• Recruiter Interview (30-60 min)
• Technical Screening (30 min)
• Technical Panel (3x60 min)

This role sits at L2/L3 of our framework, please inquire during the recruitment process for further information

At Proxima Fusion, our mission is bold: making limitless clean energy a reality. To get there, we need a high-performing, diverse team that brings different perspectives, challenges assumptions, and builds together with purpose. We know that diversity of thought and experience leads to better ideas, stronger execution, and a more resilient team. We don’t look at how you identify, what you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.

We show an excerpt and a link, and the full text when the source allows it. Brands and logos shown belong to their owners.

Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation

Posted Nov 01, 2026

Posted Nov 01, 2026