Application and cover letter submitted online.
After a few weeks I got an email from HR to book a time to interview that worked for me.
The interview was online and took just over an hour and there were three interviewers: head of software development, team lead, scrum master.
We started with a chat about my experience, and what the team is working on, then they did a small system design exercise (15-20 mins) without any visuals where we chatted about how to approach designing an app at jisc - this felt very collaborative with one of the interviewers acting as a colleague and happy to discus options.
I was offered a role within a week.