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Software Development Engineer In Test Sdet Interview Questions
3,724 software development engineer in test sdet interview questions shared by candidates
Round 3 – Follow-up / HR-aligned Technical Round Focus: Fundamentals + confirmation Questions asked: Basic Selenium questions (locators, XPath). Jenkins overview. Re-asked Python logic questions. Confirmation-style coding (executed code). Quick checks on fundamentals rather than deep discussion.
Round 1 – QA Director / Senior QA (Technical + Logic) Focus: Backend, API, security, Python logic, QA mindset Questions asked: Tell me about yourself. Explain the project you worked on. How did you use JWT in your project? Difference between authentication and authorization. How did you implement and test RBAC? How do you validate secure APIs? What kind of negative/security scenarios did you test? How do you debug failures using logs? How would you handle a project if you are the only QA? Write Python code to move all zeroes to the right in a list. Explain your approach to API validation using JSON responses.
Selenium knowledge Automation skills QA in general
Name a time where you had a disagreement and how did you solve it
First round consisted of 8 multiple choice questions on Basic Selenium commands, TestNG annotations, android main activity, XPath operators. 3 Coding questions: 1. Best Time to Buy and Sell Stock . You can buy and sell just once. Find max profit. 2. Given an array. Find if the array can be made as an increasing ordered array by changing the position of just one element. 3. Given a string, can you rearrange the characters of the string to make a palindrome? Second round was a Zoom interview: It was with one of the senior members of the team. I was given 2 coding questions to solve: 1. Convert an integer to binary equivalent 2. reverse an integer Later he asked how would i test my code, is the code production ready etc. I was asked to implement a Stack. And few basic java questions
Q: What is the qa process in your current company?
Longest Substring Without Repeating Characters – Solved using sliding window with a hash set/map to track characters and update window pointers.
DSA Round 1. Addition of big string integer 2. True false as per number appearance in output with time complexity. 3. All Functional Testing question 4. Automation project structure. 5. Managerial Basic question
1. 2 Java programs 2. 1 automation problem with projects and viva 3. HR round questions.
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