Interview Questions
Technical Prep
The Design Patterns That Keep Showing Up in LLD Interviews
Most design patterns interview questions test whether you know when a pattern breaks, not whether you can recite it. Singleton, Factory, Builder, Adapter, Decorator,…
Technical Prep
The 15 Coding Interview Patterns Behind Almost Every Problem
A new LeetCode-style problem is almost never actually new. It's one of about fifteen recurring shapes wearing different flavor text. Here's the full 2026…
Git Interview Questions (2026): 30 Most Commonly Asked, With Answers
A backend candidate at a Series B fintech got asked one question in March 2026 that ended the interview early: “You just ran git…
Technical Prep
Big-O, Explained: The Interview Concept You Can’t Fake
Most candidates can write the faster code. Fewer can explain, out loud, why it's faster. Here's how Big-O time complexity actually works: what it…
Data Structures Interview Questions (2026): Must-Know Q&A
The 2025 Stack Overflow Developer Survey put Python usage among professional developers at 54.8 percent, up sharply from a few years ago, while JavaScript…
SQL Server Interview Questions (2026): T-SQL & Performance Q&A
Microsoft SQL Server sits behind roughly 30.9% of the databases professional developers reported using in the 2025 Stack Overflow Developer Survey, still the fourth…
System Design Interview Questions (2026): Must-Know Q&A
Eric Brewer sketched what became the CAP theorem as a conjecture during a keynote at the 2000 ACM Symposium on Principles of Distributed Computing.…
Kubernetes Interview Questions (2026): 39 Most Asked, With Answers
Kubernetes production use among container users hit 82 percent in CNCF’s January 2026 Annual Cloud Native Survey, up from 66 percent just two years…
DevOps Engineer Interview Questions (2026): CI/CD, Kubernetes, IaC & Scenarios
DevOps engineer interview questions have shifted hard toward Kubernetes and Terraform over the last two years, and the data backs it up. Production Kubernetes…
HCLTech Interview Questions (2026): Online Test, Technical & HR Rounds
Updated June 2026 HCLTech ran one of India’s largest fresher hiring drives in the 2025-2026 cycle, bringing in thousands of Graduate Engineer Trainees across…