I applied through a recruiter. The process took 4 weeks.

Hadrian does not know what they want. They went all the way through the process saying only positive things and even said an offer was forthcoming before they changed their minds.

Received a message on LinkedIn from a recruiter indicating interest. Did not apply. 6 week process:

• Phone screen with recruiter
• Coding challenge (see below)
• System design (see below)
• Behavioral 1
• Onsite: Factory tour
• Behavioral 2
• Coding Challenge (see below)
• Onsite to meet manager
• Another factory tour of different facility and an overview of the team

Given an $m \times n$ chessboard with a knight (from chess) placed at some position, find the length of the shortest path, the shortest path itself, and all shortest paths to some target location.

Given a SQL Server database connected to a CNC tooling application with a fixed schema, design a migration that allows for new tooling definitions with differing schemas and uses Postgres instead.

Given a simplified JSON format described informally as including just integers, strings, arrays, and objects:

• Define the type of a parsed JSON object in this format.
• Write the parser that turns strings into objects of this type.