1. HR screening with a Talent Acquisition Specialist. This call covers the company, products, teams, the position, and the candidate's experience and interests.

2. Call with a Software Engineering Manager from the team owning the position. This call delves deeper into the project and team. Several technical questions regarding the tech stack were asked, feeling more like a conversation around engineering practices. My suggestion is to formulate a strong opinion about each topic (design patterns, architecture, threading, etc.).

3. If you perform well in the previous interview, you will be scheduled a series of "onsite" interviews. These consist of 4 back-to-back calls with several people on the team you are interviewing with. Most of these calls will be heavily coding-focused. You can expect to solve a code challenge or come up with a system design for a specific problem.

4. If you perform well during the onsite interviews, they will schedule a call to extend an offer and go over the details.

Code challenges (algorithms, data structures, complexity), system design.