Technical Interview Preparation: A Practical 2-Week Plan
Technical interviews test more than knowledge. Interviewers watch how you break down a problem, communicate your thinking and handle hints. This plan covers what to study and how to practise the way you will be assessed.
What technical rounds usually include
Fundamentals: language concepts, data structures, OOP, databases, networking basics and operating systems, depending on the role.
Coding: one or two problems solved live, on a shared editor or whiteboard.
Project deep-dive: "Walk me through a project on your resume": architecture, your role, trade-offs, what you would change.
System design (mid-level and above): designing a service such as a URL shortener or notification system.
A two-week plan
Days 1–3: revise core fundamentals for your stack, and write one-line definitions you can say aloud.
Days 4–8: solve two or three coding problems a day across arrays, strings, hashing, two pointers, trees and basic dynamic programming. Time yourself.
Days 9–10: prepare a two-minute walkthrough of your two strongest projects, including a diagram you can sketch.
Days 11–12: system design basics (load balancing, caching, databases, queues), if relevant to your level.
Days 13–14: full mock interviews, speaking your reasoning aloud the whole time.
How to think out loud
Restate the problem, ask about constraints and edge cases, describe a brute-force approach, then improve it. Mention time and space complexity before you code. If you get stuck, say what you are trying; interviewers often give hints to candidates who communicate.
Practise the explaining, not just the solving
Many candidates who solve problems on practice sites still struggle when someone is listening. A resumes-gpt AI mock interview asks technical and project questions based on your resume, in a live voice conversation, and scores how clearly you explain your approach.
Frequently asked questions
How many coding problems should I solve before an interview?
Quality matters more than count. 60–100 well-understood problems across core patterns is enough for most service and product roles.
What if I don't know the answer?
Say what you do know, reason toward an approach and ask a clarifying question. Silence is worse than a partial answer.