Always tailor cv for each job.
Print off the job description. Go through it sentence by sentence. For every 'we are looking for someone with xxx skill' you need a corresponding sentence or para or bullet in your cv and letter that addresses it.
So for example: job description says 'looking for someone with x years experience in a lab environment who can create batch production and scale up production of xxx.' You make sure in your CV you have bullet points or whatever
- x years experience in lab environment or x and x
- responsible for creating process flow, testing and scaling up production of xx
ALL keywords from the job app need to be in your CV - this helps you get past Auto filters. The cv should show that you have done/are capable of doing every single item on the job description
Now, onto the interview. Think back to the questions you were asked: write down as many as you can think of.
I usually start with a brief ok tell me about your career so far, then I ask specific job related questions. Then I ask some that are more general.
Tell me about a time you made a mistake - how did you deal with that
How do you deal with conflict in the workplace? With your peers? With managers? With people who report into you?
Etc etc.
The way to deal with these is with the STAR technique - Situation, Task, Action, Result.
So : when I first started out I hadn't read the correct SOP and i accidentally miscalibrated the batch. We lost it and I was mortified. Obviously that was a bit learning point for me, not only have I never misread an SoP again it also made me look further into how we trained new people and that revealed that our training hadn't actually covered what I was doing. I managed to crate a new training plan and I think now over thirty new recruits have benefitted from it.'
For the conflict question I want to see someone who isn't an arse :)
A also ask how people manage others. Usually something like 'you have a direct report who is usually great but she's made some mistakes recently. What do you do?' You would be HORRIFIED how many people say 'sack her.' When what I want to hear is that they'd talk to her, see if anything at work was the issue, not pry into private life but make them aware that if they do wish to tell us anything we aren't monsters, check they aren't overloaded with work, etc etc...
So for each of these 'tell me about a time' things, think of a situation - think of maybe ten situations you've learned something from in the workplace - each one can be used to answer multiple questions.
Good luck. And keep trying. Rejection isn't personal - I've recommend people be hired that I know would be great and my asshole of a boss overruled it and went for the wideboy car salesman type who talked the talk but was clearly a git- and then whined at me that he was no good and it was my fault..,