You could take a college course, which would teach you some of the skills and knowledge you'll need in this job, for example the Level 2 Certificate in Rail Engineering.
Some colleges organise work placements with rail engineering companies as part of the course, so speak with them to get more details.
Entry requirements
You'll usually need:
- 2 or more GCSEs at grades 9 to 3 (A* to D), or equivalent, for a level 2 course