I applied online. The process took 5 weeks.

The process typically starts with a CodeSignal General Coding Assessment (GCA), consisting of 4 questions:

• Roughly 2 LeetCode easy problems
• 2 LeetCode medium-to-hard level problems

Candidates in Warsaw reported having 70 minutes to complete 4 questions of easy-to-medium difficulty.

After the OA, there's a brief recruiter call focused on your background and interest in the role. It typically lasts 15–20 minutes with basic questions like "Introduce yourself" and "What are your career goals?"

The final stage is 1 hour total, split into two 30-minute sessions: one behavioral and one technical.

A round-robin product ranking problem: given $n$ companies, each with products and ratings, return products ordered from highest to lowest rating in a round-robin fashion across companies.