Job Description

Job Description

First Light Fusion is a deep tech startup working on the generation of clean and renewable energy, using inertial confinement fusion. We use a variety of optical diagnostics to monitor target and launcher performance. These include measurements of light energy, projectile velocity and electrical current in our high voltage launcher, as well as ultra-high speed imaging of our targets.

Our suite of experimental diagnostics has now been centralised and can be run on any of our 2 pulsed power facilities or 2 stage light gas guns. You will assist in the operation, maintenance and development of these capabilities.

We believe this is an exciting and varied role as you will interact with all the experiments taking place at First Light using a broad range of advanced diagnostics in a fast-paced environment. While being a specialist, you will also interact with other teams to understand future requirements.

Responsibilities will include:

  • General support of scientific experiments
  • Optical diagnostics alignment and calibration
  • Continuous development and maintenance of experimental equipment and diagnostics suite


  • A level or equivalent in physics/engineering or related subject.
  • Background in physics or engineering.
  • Highly analytical approach to work.
  • Fast and effective problem-solving skills.
  • Ability to work under pressure to tight deadlines while maintaining high-quality output.
  • Strong communication and interpersonal skills.
  • Demonstrable ability to keep good records, documentation and a high overall level of organisation


  • Practical experience working with optics/high-speed cameras in a scientific environment. Further training will be provided by FLF if needed.
  • Theoretical knowledge of optics.
  • Experience with a variety of optical diagnostics and laser safety procedures.
  • Experience with high-power lasers (CW and Pulsed). You will be trained on the laser systems we use.
  • Experience with fibre optic systems