Tech Architect Interview Questions and Answers in 2025 (100+ Q&A)

Algorithm Tech Architect

Ques:- You can place weights on both side of weighing balance and you need to measure all weights between 1 and 1000. For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one …

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Data Structure Tech Architect

Ques:- Given an unsorted array of positive integers and an integer N, return N if N exist in the array or the first number that is smaller than N.

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Data Structure Tech Architect

Ques:- Given an array containing numbers from 1 to N. Numbers are in also in range from 1 to N. Some numbers are missing and some numbers are repeated more than once. Find the missing numbers in O(n)

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Data Structure Tech Architect

Ques:- You are given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of time. We have to find these duplicating numbers in O(n) and using only constant memory space. for eg suppose …

Asked In :- NJ Technologies, Ganit Softech, dealersocket, openai, Aviasales,

Data Structure Tech Architect

Ques:- Given a sorted array arr[] and a number a, count the no. of occurences of x in arr[]. Logn solution expected.

Asked In :- soctronics, cumulus systems,

Data Structure Tech Architect

Ques:- More on Hash tables, Chaining, Modulus, and Linked Hashing.

Asked In :- Octopus, Freshworks, britam,

Data Structure Tech Architect

Ques:- You have 1000 names in random order and i ask you to pick any name of my choice randomly and then give me complete info of that person so what data structure yuo will use to store person info?

Asked In :- Solugenix India,

Data Structure Tech Architect

Ques:- Initially next_larger of every node is point to NULL. now write a c code which set all node's next_larger pointer. where next_largest point …

Asked In :- pyro networks,

Data Structure Tech Architect

Ques:- An array of integers. The sum of the array is known not to overflow an integer. Compute the sum. What if we know that integers are in 2's complement form?

Asked In :- IFPRI, j.d. edwards,

Data Structure Tech Architect

Ques:- In the given linked list, odd numbered nodes are in increasing order and even numbered nodes are in decreasing order. How it can be sorted in increasing order?

Asked In :- KRIOS Info Solutions, RELX Group, britam,

Algorithm Tech Architect

Ques:- Given a very large file (millions of record), find the 10 largest numbers from it.

Asked In :- Neuralink,

Data Structure Tech Architect

Ques:- Check for duplicates in an unsorted array in O(n) without using any extra space

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Data Structure Tech Architect

Ques:- Design a data structure that can be used instead of an array and avoids the “high-cost” (i.e. O(n)) of initializing the array. the data structure ought to holds n items and supports the following operations in O(1) time: * Init Initializ…

Asked In :- crmnext,

Algorithm Tech Architect

Ques:- How will you raise a n x n matrix to the power k efficiently. What's the time complexity and space complexity of you algorithm? How will you optimize this?

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Algorithm Tech Architect

Ques:- Given a text file, implement a solution to find out if a pattern similar to wild cards can be detected. For example, find if a*b*cd*, or *win or *def* exists in the text.

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Algorithm Tech Architect

Ques:- In a game, you bet using the following strategy. Whenever you lose a bet, you double the value of the bet for the next round. Whenever you win, the bet for the next round will be one dollar.

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Algorithm Tech Architect

Ques:- There is a file system on the disc. the disc has many sectors. Always the first sector has the information about all the files.

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Algorithm Tech Architect

Ques:- Print all the paths from root to leaf nodes of binary tree depth of the tree is provided

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Algorithm Tech Architect

Ques:- Print permutations of a given string in sorted order

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Data Structure Tech Architect

Ques:- Suggest a data structure for finding median of a set. The data structure should also support efficient insertion and deletion.

Asked In :- Freshworks, ExtraHop Networks,

The Tech Architect section on takluu.com is dedicated to professionals aiming to lead the design and implementation of complex software systems. A Tech Architect plays a pivotal role in bridging business needs with technology solutions, ensuring that applications are scalable, maintainable, and aligned with organizational goals.

This category covers critical areas including system design principles, software architecture patterns (like microservices, SOA, MVC), cloud architecture, security best practices, API design, and performance optimization. You will also explore architecture documentation, stakeholder communication, and technology evaluation techniques.

Our content provides deep insights into both theoretical concepts and practical challenges faced by tech architects in real projects. Interview questions focus on problem-solving skills, architectural trade-offs, decision-making under constraints, and aligning technology stacks with business requirements.

Whether you’re preparing for roles like Technical Architect, Solution Architect, Enterprise Architect, or Lead Developer, this section equips you with the knowledge to explain complex designs clearly, defend your architectural choices, and demonstrate leadership in technology planning.

At Takluu, we combine detailed explanations with scenario-based questions and case studies to ensure you are ready for both technical and behavioral rounds in tech architect interviews. Our goal is to empower you to design robust solutions and take ownership of technology roadmaps confidently.

Prepare with us and take the next step in your career to become a successful Tech Architect who drives innovation and delivers impactful technology strategies.

Questions in: Tech Architect

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