System Design Interview: Machine Learning Platform and MLOps
6 min read As machine learning moves from research to production, companies need platforms that manage the full ML lifecycle: data ingestion, feature […] Read article
System Design
System Design
System Design Interview: Ticketing and Seat Reservation System
7 min read Designing a ticketing system like Ticketmaster or a seat reservation system for movies/concerts tests your understanding of concurrency, distributed locking, Read article
System Design
System Design Interview: API Gateway and Service Mesh
6 min read API gateways and service meshes are the networking backbone of modern microservices architectures. They handle cross-cutting concerns — authentication, rate Read article
System Design
System Design Interview: DNS and Global Load Balancing
6 min read DNS and global load balancing are foundational to any internet-scale system. Understanding how DNS resolution works, how GeoDNS routes traffic, Read article
System Design
System Design Interview: Kubernetes and Container Orchestration
5 min read Kubernetes is the de facto standard for container orchestration. Understanding its architecture, scheduling model, and operational patterns is increasingly expected Read article
Algorithms
Sliding Window and Two Pointer Interview Patterns
7 min read Sliding window and two pointer techniques are among the most frequently tested patterns in coding interviews. They convert O(n²) or Read article
System Design
System Design Interview: Distributed Transactions and Saga Pattern
5 min read Maintaining data consistency across multiple microservices is one of the hardest distributed systems problems. Two-phase commit (2PC) ensures ACID guarantees Read article
System Design
System Design Interview: Distributed File System (GFS/HDFS/S3)
5 min read Designing a distributed file system (DFS) like HDFS, Google File System, or Amazon S3 is a classic system design interview Read article
System Design
System Design Interview: Recommendation Engine at Scale
5 min read Recommendation systems power product discovery at Netflix, Spotify, Amazon, and LinkedIn. Designing one at scale involves a multi-stage architecture that Read article
Algorithms
Trie and String Algorithm Interview Patterns
8 min read Tries (prefix trees) and string algorithms appear in autocomplete, spell checking, IP routing, and competitive programming. Mastering trie construction and Read article
System Design
System Design Interview: Real-Time Bidding Platform (Ad Exchange)
10 min read The global programmatic advertising market is $500B. Every time a web page loads, a real-time auction runs in under 100 Read article
System Design
System Design Interview: Ticketing System (Ticketmaster)
9 min read Ticketmaster sells 500M+ tickets per year. A Taylor Swift tour launch can generate 3.5 billion system requests in a single Read article
Algorithms
Java Interview Questions: JVM Internals, Concurrency, and Design Patterns (2025)
9 min read Senior Java interviews at Google, Amazon, LinkedIn, and enterprise shops go deep on JVM internals, concurrency, and the language semantics Read article
System Design
System Design Interview: Fraud Detection System
8 min read Payment fraud costs $32 billion annually. Every payment processor, bank, and marketplace needs a fraud detection system that identifies fraudulent Read article
System Design
System Design Interview: E-Commerce Platform (Amazon)
9 min read Amazon processes 100K+ orders per minute on Prime Day. Designing an e-commerce platform covers product catalog management, inventory at scale, Read article