Technical Screen Interview Questions
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Scaled Self-Attention Implementation — Meta
Implement scaled self-attention for Transformers: compute attention outputs and per-query weights from Q, K, V with masking and numerical-stability. Try coding
Sliding Window Centered Monotonicity - Pinterest OA
Find indices whose radius-k centered window is inside nums and strictly decreases outward. See O(n) sliding-window/two-pointer approach and edge-case tips.
Snapchat Coding Interview: Cache with TTL & Capacity
Learn how to implement a cache with TTL and fixed capacity (Snapchat-style). Understand expiration, eviction on insert, and testable get/set semantics—practice now.
Snapchat Database Systems Interview: SQL vs NoSQL
Prepare for Snapchat database questions: compare SQL vs NoSQL, ACID vs BASE, scaling and data modeling. Read scenarios, examples, and actionable prep tips.
Snapchat ML Coding: K-Means + MapReduce Implementation
Prepare for Snapchat ML coding: implement deterministic K-means (centroids & assignments) and adapt it to MapReduce with mapper/reducer scripts. Learn iteration & stop rules.
Snapchat ML System Design: Real-Time Multimodal Moderation
Design a Snapchat real-time multimodal harmful content detection system—architecture, latency, scalability, moderation integration and feedback loops. Prepare.
Snapchat System Design Interview: Price Tracking & Alerts
Prepare for Snapchat backend interviews: design a scalable price-tracking and alerting system. Learn architecture, trade-offs, scraping, scheduling, and notifications.
Snowflake Behavioral Interview: Problem Solving Skills
Prepare Snowflake software engineer behavioral problem-solving answers: show a clear approach to diagnose, prioritize, and fix engineering issues. Practice now.
Snowflake ML System Design: Cloud Anomaly Detection
Cloud anomaly detection system design for Snowflake interviews. Learn architecture, scaling, low-latency inference, security, and response mechanisms.
Snowflake System Design: Versioned Key-Value Store
Design a global versioned key-value store with time-travel reads, replication and configurable consistency. Architecture, tradeoffs and interview follow-ups.
Stripe Coding Interview: Match Payments to Invoices
Deterministic matching of payments to invoices using identifier, exact, then range rules. Tie-breakers and earliest due-date ordering for stable results.
Stripe Load Balancer WebSocket Router (Online Assessment)
Simulate Stripe's WebSocket load balancer handling CONNECT/DISCONNECT/SHUTDOWN with sticky routing, eviction, and reallocation. Read algorithmic tips & examples.
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