Most interview prep advice covers the weeks before. This is about the last 24 hours, which get neglected and which carry more weight than people expect. The day before is not for cramming new material. It is for getting the material you already have into a state you can actually use under pressure.
Think of it as the difference between studying and walking into the exam room. Different job, done close to the moment.
Re-read the job posting, then the company
Open the job description one more time. By now you have read it five times, but read it again looking for the two or three things the role clearly cares about most. Those are what the interviewer will probe.
Then spend twenty minutes on the company as it is today. Their latest announcement, a recent product change, anything from the last month. You are not memorising a Wikipedia page. You want one or two current, specific things you can reference naturally if the conversation opens the door.
Prepare three stories, not twenty answers
You cannot predict every question. You can prepare a small set of strong stories that flex to fit many questions. Pick three moments from your experience: one where you solved a hard problem, one where something went wrong and you handled it, one where you worked with a difficult situation or person.
Three stories cover most behavioural questions, because the same story answers "tell me about a challenge", "a time you failed", and "a conflict you resolved" depending on which angle you lead with. Practise telling each one out loud, once. Out loud matters; a story that is clear in your head often falls apart the first time it leaves your mouth.
Write down your own questions
At the end, you will be asked if you have questions. "No, I think you covered everything" is a weak ending to an otherwise good interview. Have three written down.
Good questions are specific to this role and this team: how the team measures success in the first six months, what the last person in the role found hardest, how decisions get made. Skip questions about salary and holidays at this stage; there is a later moment for those.
Sort out the logistics tonight, not tomorrow
This is the boring part that prevents the worst kind of stress. For an in-person interview: confirm the exact address, plan the route, decide your outfit and check it is clean and ready. For a video call: test the camera and microphone, check the link works, and pick a spot with a plain background and decent light.
Doing this the night before means tomorrow morning has no surprises. Surprises are where the nerves come from.
Stop early and sleep
There is a strong temptation to keep prepping late into the night. Resist it. After a point, more revision does not add anything, and a tired brain in the interview costs you far more than one extra rehearsal would have gained.
Set a cutoff time the evening before. Stop, do something unrelated, and get a normal night of sleep. Being rested and calm beats being over-prepared and frayed.
The morning of
Keep it light. Re-read your three stories and your three questions, once. Eat something. Arrive or log on ten minutes early, not thirty. You have done the work; the morning is just about showing up steady.
Run this checklist the day before your next interview. If your CV still needs a final tidy before you send it, Postulit can turn your LinkedIn profile into a clean version quickly, so that one item is off your list well before the 24-hour mark.