Qualcomm Interview Experience | Associate Engineer | Full Time

IntroductionQualcomm, a leader in 5G, mobile communications, and IoT technology, is a dream company for many engineers. As an ECE graduate, I aspired to work at Qualcomm d...

Introduction Qualcomm , a leader in 5G, mobile communications, and IoT technology, is a dream company for many engineers. As an ECE graduate, I aspired to work at Qualcomm due to its innovative contributions to telecommunications. In this article, I’ll share my interview experience to help fellow candidates prepare effectively. Role: Associate Engineer Rounds: 4 (Online Assessment + 3 Technical Interviews)

Verdict Selected 1. Online Assessment (90 minutes) The online assessment was structured into three sections: 1.1 Aptitude (30 minutes) The questions in this section were of medium difficulty. 1.2 Computer Fundamentals (30 minutes) Topics covered included: Operating Systems DBMS Computer Networks Object-Oriented Programming Data Structures and Algorithms The difficulty level was also medium. 1.3 Core Questions and Programming Logic (30 minutes) Focused on: C Programming Pointers Digital Electronics Communication subjects Questions included: Guessing the output of given code Identifying errors in code Core fundamentals from Digital Electronics and Communications Scoring: 1 mark for each correct answer. 0.25 negative marks for each incorrect answer. 2. Technical Interview 1 (50 minutes) Introduction The interviewer introduced himself, sharing his experience at Qualcomm and providing an overview of the company’s work and the role for which I was being interviewed. Key Topics Discussed: RF (Radio Frequency) and its frequency range. Evolution of mobile communications from 1G to 5G. In-depth discussion on 5G technology, focusing on various releases by 3GPP. The process of call establishment between users. Modulation schemes and spectrum usage across generations. Concepts of MIMO, Massive MIMO, beamforming, and millimeter-wave communication. 3. Technical Interview 2 Introduction Similar to the first round, the interviewer began with a brief discussion about my background. Key Topics Discussed: Program execution flow in C, including macros and preprocessors. Operating Systems concepts. Discussion about my projects. Data Structures and Algorithms: Detecting a loop in a linked list: ( Detect loop or cycle in a linked list ) Bit manipulation: Setting the nth bit of a number. ( Set the K-th bit of a given number ) Puzzle: The 100 doors problem, where 100 soldiers toggle doors based on their number. This question tested my logical thinking and problem-solving skills. Here you can find the link : puzzle-16-100-doors 4. Technical Interview 3 Introduction This round was conducted by a senior manager with over 15 years of experience. Key Topics Discussed: Data Structures: Focused on backtracking, particularly the N-Queens problem. I was tasked with placing queens on a chessboard so that no two queens could attack each other. I explained my approach to solving this problem. ( N Queens ) HR Questions: The discussion included HR-related questions and was more conversational in nature. Verdict I am pleased to share that I was selected for the Associate Engineer role at Qualcomm. This experience not only enhanced my technical knowledge but also provided insights into the recruitment process at a leading tech company.