Technical interviews can feel challenging, especially for freshers. Many students do not know where to start or how to organize their preparation. The good news is that 30 days are enough to build strong confidence if you follow a proper plan.
This guide will help you prepare step by step in a structured and practical way.
Understand the Interview Format First
Before starting preparation, understand what technical interviews usually include:
Technical subject questions
Coding or problem solving rounds
Project discussion
Basic computer science fundamentals
HR or behavioral questions
Research the company role and job description carefully. This helps you focus only on relevant topics instead of studying everything randomly.
Week 1 Focus on Fundamentals
The first week should be dedicated to strengthening basics.
Revise core subjects such as:
Data Structures
Algorithms
Database Management Systems
Operating Systems
Computer Networks
If you are from a non technical background, focus more on:
Basic programming concepts
Variables, loops, conditions
Functions and arrays
Strong fundamentals make advanced questions easier.
Week 2 Improve Coding Skills
Technical interviews often test your coding ability.
During the second week:
Practice 2 to 3 coding problems daily
Start with easy problems
Move gradually to medium level
Focus on logic building
Important topics to practice:
Arrays
Strings
Linked lists
Stacks and queues
Sorting and searching
After solving each problem, review your approach and try to improve efficiency.
Week 3 Work on Projects and Advanced Topics
Recruiters often ask about your projects.
Be prepared to explain:
What problem your project solves
Technologies used
Your role in the project
Challenges you faced
How you solved those challenges
Also revise advanced topics related to your specialization.
For example:
If you are preparing for software roles, revise object oriented programming and system design basics
If preparing for data roles, revise SQL and basic data analysis concepts
This week should focus on applying knowledge practically.
Week 4 Mock Interviews and Revision
The last week is for practice and confidence building.
Take mock technical interviews
Solve timed coding tests
Practice explaining answers clearly
Revise weak topics
During mock interviews:
Speak your thought process
Do not panic if you get stuck
Try different approaches
Interviewers are interested in your thinking ability, not just the final answer.
Daily Study Routine Example
You can follow a simple daily schedule:
1 hour concept revision
1 to 2 hours coding practice
30 minutes project discussion practice
20 minutes communication practice
Consistency is more important than studying for long hours in one day.
Common Mistakes to Avoid
Avoid these common errors:
Studying without a plan
Ignoring fundamentals
Memorizing answers without understanding
Not practicing coding regularly
Skipping mock interviews
Preparation should focus on understanding, not just remembering.
Improve Communication Skills
Technical knowledge alone is not enough.
During interviews:
Explain answers clearly
Use simple language
Maintain eye contact
Stay calm and confident
Practice speaking about technical topics daily to improve clarity.
Take Care of Your Health
In 30 days, do not forget:
Proper sleep
Healthy food
Short breaks
Light exercise
A fresh mind performs better in interviews.
Final Thoughts
Preparing for technical interviews in 30 days is possible if you:
Strengthen fundamentals
Practice coding daily
Revise projects properly
Take mock interviews
Stay consistent and disciplined
Do not wait for the perfect time. Start today, follow a structured plan, and build your confidence step by step.
Your preparation in these 30 days can open doors to your dream job.
