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Lumens Technologies
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Lumens Technologies Engineering Manager Interview Questions and Answers
Lumens Technologies Engineering Manager Interview Experiences
1 interview found
Selected
I applied via Naukri.com and was interviewed before Apr 2022. There were 4 interview rounds.
1 hour, Algorithms, DSA, puzzles
(1 Question)
- Q1. Previous experience, work challenges, achievements etc,
(1 Question)
- Q1. Cultural fit, People management challenges and solutions implemented, letting an employee go, performance appraisal etc.
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I applied via Referral and was interviewed before Sep 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Basic c programming
- Q2. Previous experience questions
Interview Preparation Tips
Senior Engineer Interview Questions & Answers
Renesas Electronics India
Anonymous
posted on 8 Jul 2021
Interview Questionnaire
1 Question
- Q1. State machines
I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Communication Concepts
- Q2. Embedded Concepts
Interview Preparation Tips
Experience: Shortlisted based on CGPA and Profile
Tips: CGPA above 7.5 and Communication/CS based coursework/ability
Round: Test
Experience: C Coding Questions which checked basic knowledge of C
Tips: Brush up your C skills. Questions are easy but may require knowledge of stuff like what is big endian and little endian etc.
Duration: 1 hour 30 minutes
Total Questions: 12
Round: Technical Interview
Experience: My Communication relation concepts were tested. My Major Project was asked in detail.
Tips: If Comm background, prepare ITC, MultiCarrier/Wireless at a good level. If not they will ask C.
Round: Technical Interview
Experience: I was asked basic level embedded concepts.
Tips: Prepare on the following and similar stuff : How to implement a pseudo dynamic memory allocation using flash memory- which data structure to use. How does Inter Process Communication work. How does a multicore processor synchronizes its cores. If Comm background, give the TX and RX chain design (Wireless System Design)
Skills: Communication Systems, Embedded Systems, C Programming
College Name: IIT Madras
Gayathri S ee15m052
I applied via Campus Placement and was interviewed before Dec 2015. There were 2 interview rounds.
Interview Preparation Tips
Experience: It was a written test with some numerical aptitude questions and coding questions. The test was fairly easy
Duration: 1 hour
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016. There were 3 interview rounds.
Interview Preparation Tips
Experience: It was a written test with some numerical aptitude questions and coding questions. The test was fairly easy
Tips: Learn about pointers and using function pointers
Round: Technical Interview
Experience: First, I was asked to brief about the projects I have done so far. Then there were some questions about C programming like pointers, const pointers, storage classes, volatile keyword etc. It was followed by some basic questions about computer architecture, microcontroller, FPGA, RTOS
Round: Technical Interview
Experience: In this round I was asked to write algorithm for some simple problems like checking if a given integer (not string) is palindrome or not, checking if a number is a multiple of 3 (using bitwise operations) etc
College Name: IIT Madras
I applied via Referral and was interviewed before Mar 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. General information and technical education.
Interview Preparation Tips
Selected
I applied via Company Website and was interviewed before Apr 2022. There were 5 interview rounds.
Pointer and linked list
Pure technical on kernel programming
(3 Questions)
- Q1. Pure technical questions on background project
- Q2. Mutex semaphore and spinlock
- Q3. How you will achieve multi threaded programming
- Ans.
Multi-threaded programming can be achieved by creating multiple threads that run concurrently.
Identify the tasks that can be executed in parallel
Create threads using threading libraries in the chosen programming language
Synchronize the threads to avoid race conditions and deadlocks
Use locks, semaphores, and mutexes to manage shared resources
Optimize the performance by balancing the workload among threads
(1 Question)
- Q1. Why you want to join this company
Selected
I applied via Referral and was interviewed before Oct 2022. There were 3 interview rounds.
(1 Question)
- Q1. This was more like shortlisting round with manager. Asked about resume and previous work experience. Not much Technical questions.
(5 Questions)
- Q1. Python programming questions, Basics
- Q2. Python oops concepts
- Q3. What is module in Python
- Ans.
A module in Python is a file containing Python code, which can define functions, classes, and variables.
Modules help organize Python code into reusable components
Modules can be imported into other Python scripts using the 'import' keyword
Examples of modules in Python include math, random, and os
- Q4. Python memory management
- Q5. Basic Devops questions
Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed in Jul 2024. There were 4 interview rounds.
(2 Questions)
- Q1. Ofdm, Fixed point, sampling theorem, digital filters,
- Q2. Previous work clarity
- Ans.
Previous work clarity is essential for successful collaboration and understanding of project requirements.
Clearly explain the projects you have worked on in the past, including your role and responsibilities
Provide examples of how you communicated with team members to ensure clarity in project goals
Discuss any challenges you faced in previous projects and how you overcame them
(2 Questions)
- Q1. Fft, ofdm, CP, sampling theorem, previous experience,
- Q2. C basics, memory layout, function pointer, big small endian, bit manipulation, zero padding in structures
Bit manipulation, memory layout, interrupts, semaphore mutex, implement memcpy, sorting, algo to share resource equally
(1 Question)
- Q1. Previous work experience, general attitude
Interview Preparation Tips
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Lumens Technologies Engineering Manager Interview Process
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