Tejas Networks R&D Engineer Interview Questions, Process, and Tips

Interview preparation tips for other job seekers - Prepare well ahead about the company you are applying for and whatever you use in your resume

Round: Test
Experience: The total test is for 2hrs. 1st section is for 1hour.. It consists of aptitude questions and some basic questions on
C,C++,DS... No choices were given..All the questions are of fill in the blanks type.. and so no of question of guessing...
2nd hour consists of questions from data structures. This section is mainly aimed at test the programming and logical
thinking.. Time is sufficient for the above two sections
Tips: You must be good in coding.
Duration: 120 minutes

Round: Technical Interview
Experience: Only one technical round was there.. The basic concepts of OS,Networking were asked for me.. For others There were
questions on C,C++ also
Tips: You must be strong in your basics.

Skills: Analyzing and problem solving skills., Good technical skills.
College Name: NIT WARANGAL

Round: Test
Experience: One written test. It contains two sections. Each section is of 3
Duration: 60 minutes

Skills: Analyzing and problem solving skills., Good technical skills.
College Name: NIT WARANGAL

Round: Test
Experience: One written test. It contains three sections. The first two sections are of 20 minutes each and the third section is of 60 minutes.
Tips: You must be good in coding.
Duration: 100 minutes

Round: Technical Interview
Experience: The software technical interview revolved around software skills only for an ECE student. Questions were asked from c,c++, DS and OS (depth of which depends on the student himself).
General and basic knowledge in electronics was also tested like those in STDL, CAO , digital electronics. 
Thus a 40 minutes interview in software skills was followed by a 20 minutes interview on technical stuff in electronics.
Tips: You must be strong with your basics.

General Tips: Brush up all your basics in C, C++, data structures and operating systems.
Skills: Analyzing and problem solving skills., Good technical skills.
College Name: NIT WARANGAL

Round: Test
Experience: Questions were asked from following topics:
• VLSI (concentrate more) : setup time, hold time , propagation delay ( EE619 must be read carefully , recommended book : Rabaey )
• Information theory ( unexpectedly ) : Information and coding theory
• Digital & analogue circuits
• Signal processing
• No questions were asked from electrical portion.
• A question was asked on cache memory concept and was almost asked in many companies.
• There were questions related to flip-flops, gates, laches, FSM these topics must be thorough.
Tips: This test was dependent on the amount of practice you've done. Since, for 60 questions 1 hour time is quite less so you must have your strategy under your sleeves. I was more towards technical side so I first completed the technical part in first 50 min. and then attempted 40-50 % aptitude portion. There were two profiles of R&D Software and Hardware engineer.
Duration: 60 minutes
Total Questions: 20+40

Round: Technical Interview
Experience: The panel was of 5 (2 software engineers, 2 hardware engineers, 1 HR manager) and duration was 45 minutes.
Questions were asked on:
• Bug converter
• What are enhancement and depletion type and MOSFETs?
• setup time, hold time , propagation delay
• Verilog HDL : blocking assignment vs. non-blocking assignment
• Which optimization approach do we follow while writing a code in HDL high level to low level or low level to high level?

General Tips: • For aptitude test your speed must be really fast.
• Before applying in the companies you must know do want to do core job or non-core job.
• EE 619 should be thoroughly studied.
• It is not necessary to answer the question correct at the first time but you must continuously think for the answer and must correct yourself with proper logic.
• You should not give ambiguous answers and must know to say don’t know when you really don’t know the answer.
Skills: Digital and analogue parts of VLSI, Digital circuits , Computer Network, Control Systems and Analysis , microprocessors
College Name: IIT- Kanpur