Very structured. Questions varied : - Devops and tools - Sysadmin and tools - Nodes and system build - Nix and NixOS - Functional programming - Oroborus - Haskell - Node breakdown Overall, it wasn't difficult, the interviewers(3) were very nice and accommodating. the main interviewer spoke the most. Sometimes he asked the other interviewers to contribute. Even tho it was technical, it was mainly conversation driven. No coding or challenge resolution were requested.