Graviton's coding rounds are medium to hard, similar to Google and Meta, with an added emphasis on behavioral questions through the Bar Raiser round. Dedicate 2-3 months to preparation, solving 150-200 LeetCode problems (focus on trees, graphs, and DP) and mastering all 16 Leadership Principles with STAR stories. Consistency is key—aim for 2-3 hours daily rather than cramming.

Focus on trees (binary, BST, Tries), graphs (DFS/BFS, shortest path), and dynamic programming for coding rounds; these appear in 60% of questions. For system design, study scalability patterns, API design, and databases; SDE-3 candidates must prepare for multi-service architectures and trade-offs. Graviton's cloud-native products make AWS service knowledge a significant advantage.

Candidates often fail to communicate their problem-solving process clearly, skip edge-case analysis, and provide vague behavioral answers without using the STAR method. Others neglect Graviton's Leadership Principles, giving generic stories that don't demonstrate ownership or customer obsession. Practice solving problems aloud and record yourself to catch these issues early.

Stand out by asking insightful questions about Graviton's technical challenges and sharing specific past projects where you drove measurable impact aligned with Leadership Principles. Deeply optimize your coding solutions beyond brute-force while explaining trade-offs, and in the Bar Raiser round, demonstrate 'raise the bar' qualities like bias for action and inventiveness. Prepare thoughtful questions about team dynamics and product roadmap.

The hiring committee review typically takes 1-2 weeks, but delays up to 4 weeks occur during peak seasons. Recruiters often follow up within 5-7 business days post-interview; if silent, a polite email after 10 days is appropriate. Offer negotiations begin within 3 days of verbal acceptance, with a formal offer following shortly after.

SDE-1 interviews emphasize coding implementation and basic design; SDE-2 expects end-to-end feature design and mentorship skills; SDE-3 delves into architectural trade-offs, cross-team influence, and strategic decisions. System design rounds become increasingly abstract and scalability-focused with higher levels, with SDE-3 requiring deep knowledge of distributed systems.

Use LeetCode (filter by Graviton tags), Grokking the System Design Interview, and Graviton's engineering blog for product context. Practice behavioral questions with peers using the Leadership Principles guide, and utilize platforms like Pramp for free mock interviews. Review recent Glassdoor reports to identify trending problem patterns and company-specific focus areas.

Graviton emphasizes a culture of ownership, customer obsession, and innovation, with high expectations for scalability and reliability in cloud-native products. SDEs are expected to operate with autonomy, drive projects from concept to deployment, and continuously learn new technologies. Work-life balance is respected, but the bar is high for delivering impactful, customer-centric solutions.