The interview process consisted of four rigorous rounds. Eligibility for the position was contingent upon having verified open-source contributions. The HR department provides a comprehensive set of preparatory materials, and it is highly recommended to master these documents thoroughly, as they contain the core expectations for the assessment. Key Interview Topics: * System Design: Focusing on scalability and architectural fundamentals. * Data Structures and Algorithms (DSA): Problem-solving and optimization techniques. * Webhooks: Practical application and integration concepts. My experience began with an initial screening followed by deep-dive technical rounds that strictly mirrored the documentation provided by the recruiting team. I strongly suggest focusing your study time on the provided HR materials, as they are the most accurate reflection of the questions you will encounter. Ensure your GitHub portfolio is polished, as the initial vetting process heavily prioritizes your public project history. When discussing system design, be prepared to justify your trade-offs in a real-world scenario.