JK Tech Software Engineer Interview Questions

The questions to prepare for a JK Tech Software Engineer interview. Questions from real interview reports rank first. Updated daily.

4questions

~1htotal time

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CodingStart here. 2 questions · ~33 min

Generate the first n Fibonacci numbers using an iterative sequence-building algorithm.

Sort and Reverse Linked ListMedium

Practice

Sort a singly linked list with merge sort, then reverse its links in place to produce descending order.

coding challengeLinked ListsSortingJJK Tech

Technical Fundamentals1 question · ~17 min

Tests how interfaces and abstract classes differ in contracts, shared state, inheritance, and when to choose each.

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SQL & Data Manipulation1 question + 3 drills · ~47 min

Understanding ACID Properties in DatabasesMedium

Explain the ACID properties of database transactions and their importance.

JJK Tech

Use ordered record selection and joins to return each instrument's latest qualifying order and event with fill details.

Return the first row for each unique value, then rank the k most frequent values.

Return the seventh closest palindrome for each valid input number, using recursive query logic and ordered ranking.

The finish line: interview-readyComplete all 4 questions plus 3 hands-on drills to finish this plan.