Up to 60k p/a[0] for a Senior DevOps engineer is not exactly London wages when the exact same job can start at or above 80k. [1]
Have they also thought that not every engineer lives in (or wants to move to) Cardiff?
What is their remote working policy? Do they even have one?
[0]: https://www.mypinpad.com/careers/
[1]: https://www.cwjobs.co.uk/jobs/permanent/senior-devops-engine...