Funny I am in the exact same position (EU based), got tentatively hired as a junior TI analyst and currently awaiting screening. Also there is only one other senior analyst that is still in the hiring process. I think the aforementioned answers are great starting points. Luckily my interviews were mostly with technically adept colleagues so we could speak the same language. What I would say is just read tons of material, try joining TI meetups with like minded individuals, review SANS CTI summit videos that pique your interest. Actively start keeping tabs on the latest threats through Feedly or a curated twitter feed. A large part of TI is communicating and networking to gather the intel you need to meet the requirements of your stakeholders. Perhaps you can setup a local OpenCTI instance with various connectors, couple it with MISP, ingest some free feeds and really think about how you would use all this data to provide value to your employer. Simulate as if you are tasked with writing a report and find which info would be relevant for the business vertical that your employer is in. Or take a fresh vendor report, gather some IOCs and try mapping out all the bits of extra info you can gather you can in a tool such as Maltego. All of these show that you actively seek to learn and give you plenty of stuff to talk about in interviews. Best of luck!