Difficult. Strictly technical. 2 minute elevator pitched that was then 25-30 minutes of technical questions. Asked a lot about pressurized vessels. Asked a brain teaser question in the very end. Expect randomness. They wanna see how you think.

Phone call with recruiter confirming details and asking a few confirmation questions. Then phone call with team lead where they asked theoretical questions. The phone call was just through phone, no need for video. They start off asking about you and then asking three theory based problems.