Topic hub
Technical Interviews
The patterns behind coding and system design rounds, with reusable templates you can apply under time pressure.
18 articles in this hub. Start coding practice.
Coding Interview Practice Workflow: A Repeatable Routine
A repeatable coding interview practice routine: a timed seven-step loop, a think-aloud script, a problem log and a weekly rhythm you can keep.
Updated Oct 11, 2026Technical Interview Questions by Stack (2026)
Python, Java, SQL, React, data engineering and cybersecurity interview questions in one place: what is asked, a worked example, scoring and a study plan.
Updated Oct 5, 2026System Design Interview: Framework, Building Blocks, Example
A 45-minute framework for system design interviews, the building blocks (cache, queue, sharding, load balancer) with their trade-offs, and a worked URL shortener example.
Updated Oct 4, 2026Coding Interview Patterns: How to Recognize and Solve Them
The dozen patterns behind most coding interview problems, the signal in a prompt that points to each, short Python examples, a 45-minute plan, and a study schedule.
Updated Oct 4, 2026API Rate Limiting System Design: Interview Deep Dive
Design a rate limiter from scratch — token bucket, sliding window, distributed rate limiting, and Redis-based implementation for interviews.
Updated Aug 29, 2026Design a URL Shortener: System Design Interview Guide
Complete system design walkthrough for URL shortener — hashing, database selection, caching, analytics, and scaling to billions of URLs.
Updated Aug 29, 2026Finance Interview Prep 2026: Technical Questions, Modeling
Complete finance interview guide for IB, PE, hedge fund, and corporate finance roles — three-statement model linkages, DCF, LBO mental math, and stock pitches.
Updated Aug 28, 2026CodeSignal Assessment Practice: GCA Format Guide
Prepare for the CodeSignal General Coding Assessment with the current format, 200–600 scoring scale, certified-session rules, and a practice plan.
Updated Aug 22, 2026HackerRank Proctored Assessments: Rules and Setup
Prepare for a HackerRank proctored assessment with an official-rules checklist, system setup, practice plan, and steps for reporting technical problems.
Updated Aug 22, 2026How Long to Hear Back After a Technical Interview
Use the recruiter’s stated timeline, a clear follow-up schedule, and practical email templates while keeping the rest of your job search moving.
Updated Aug 22, 2026Describe a Challenging Technical Problem: STAR Templates
STAR structure for technical challenge questions: two complete example answers covering a debugging incident and scaling architecture work, with clear results.
Updated Jul 15, 2026Failed Technical Interview? Here's Your 30-Day Recovery Plan
Post-failure recovery framework — immediate steps, reflection template, 30-day improvement plan, and the mindset shift that turns rejection into data.
Updated Jul 5, 2026HackerRank SQL Assessment Tips 2026: From Basic to Advanced
SQL patterns for HackerRank — JOINs, window functions, CTEs, PARTITION BY — with 30 practice problems and a difficulty progression plan.
Updated Jul 1, 2026Codility Test Tips 2026: Score Higher on Assessments
Codility task types, scoring system, time strategy, and the top patterns tested — with a study plan to maximize your performance score.
Updated Jun 26, 2026How to Pass HireVue Coding Interview: 2026 Guide
HireVue coding format, proctoring mechanisms, and the exact strategy to pass their CodePair coding assessment with high scores.
Updated Jun 25, 2026CodeSignal and Codility AI Prep: Pass Coding Assessments
How an AI copilot helps you pass CodeSignal, Codility, and other timed coding assessments — pattern recognition, edge-case generation, and complexity checks.
Updated May 20, 2026LeetCode vs HackerRank vs Codility: Platforms Compared
Full comparison of the 6 major coding interview platforms — when to use each, which companies send which assessments, and the best free prep paths.
Updated May 5, 2026AI Coding Interview Helper: Real-Time Coding Assistance
How AI coding interview helpers work for LeetCode, HackerRank and CodeSignal practice: real-time hints, solution approaches and code review while you practise.
Updated Jun 9, 2025Put this into practice
Coding, algorithms, data structures, and system design guides that map to the rounds technical interviews actually test.