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Telesys Recruitment Process, Interview Questions & Answers

Telesys uses a structured recruitment process starting with technical screenings, followed by in-depth interviews assessing knowledge in telecommunications systems. Practical problem-solving tasks and scenario-based questions are common in later stages.
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About Telesys

Telesys Interview Questions and Answers

Updated 21 Feb 2026

Quality Assurance Engineer Interview Experience

Candidate: Emily Davis

Experience Level: Entry-level

Applied Via: Online job board

Difficulty:

Final Result: Rejected

Interview Process

3 rounds

Questions Asked

  • What is the difference between black-box and white-box testing?
  • Write test cases for a login page.
  • Describe a bug you found and how you reported it.

Advice

Practice writing clear and concise test cases and understand testing methodologies.

Full Experience

The interview process included an initial phone screen, a technical test, and a final interview. The technical test was challenging but fair. Although I was not selected, the feedback was constructive and helpful.

Technical Support Specialist Interview Experience

Candidate: David Kim

Experience Level: Mid-level

Applied Via: Company career fair

Difficulty: Easy

Final Result:

Interview Process

1 round

Questions Asked

  • How do you prioritize support tickets?
  • Explain a time you dealt with a difficult customer.

Advice

Be personable and demonstrate problem-solving skills.

Full Experience

I met the recruiter at a career fair and was invited for an on-site interview the same week. The interview was casual and focused on customer service scenarios. I received an offer shortly after.

Project Manager Interview Experience

Candidate: Catherine Smith

Experience Level: Senior

Applied Via: LinkedIn job post

Difficulty:

Final Result:

Interview Process

2 rounds

Questions Asked

  • How do you manage project risks?
  • Describe your experience with Agile methodologies.
  • Tell us about a difficult stakeholder and how you handled them.

Advice

Highlight leadership skills and experience managing cross-functional teams.

Full Experience

The process was straightforward with two rounds: a phone interview and a final video interview. The interviewers focused on my project management experience and situational questions. I was pleased with the professionalism of the process.

Data Analyst Interview Experience

Candidate: Brian Lee

Experience Level: Entry-level

Applied Via: Referral

Difficulty: Hard

Final Result: Rejected

Interview Process

4 rounds

Questions Asked

  • How do you handle missing data in a dataset?
  • Explain the difference between supervised and unsupervised learning.
  • Write SQL queries to extract specific data from a database.
  • Describe a time you used data to influence a decision.

Advice

Prepare thoroughly on SQL and statistics; also practice behavioral questions.

Full Experience

I was referred by a friend and went through a rigorous interview process. The technical rounds were challenging, especially the SQL and statistics questions. Despite not getting the offer, I learned a lot from the experience.

Software Engineer Interview Experience

Candidate: Alice Johnson

Experience Level: Mid-level

Applied Via: Online application via company website

Difficulty:

Final Result:

Interview Process

3 rounds

Questions Asked

  • Explain the difference between REST and SOAP APIs.
  • Write a function to reverse a linked list.
  • Describe a challenging bug you fixed in your previous job.

Advice

Brush up on data structures and be ready to discuss past projects in detail.

Full Experience

I applied through the company's career portal and was contacted within a week. The first round was a phone screening focusing on my background and some technical questions. The second round was a coding test, and the final round was an in-person interview with the team. The process was smooth, and the interviewers were friendly.

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Frequently Asked Questions in Telesys

Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.

Common Interview Questions in Telesys

Q: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?

Q: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.

Q: The citizens of planet nigiet are 8 fingered and have thus developed their decimal system in base 8. A certain street in nigiet contains 1000 (in base 8) buildings numbered 1 to 1000. How many 3s are used in numbering these buildings?

Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?

Q: There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.

Q: ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.) (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?

Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.

Q: Every day a cyclist meets a train at a particular crossing .The road is straight before the crossing and both are travelling in the same direction.Cyclist travels with a speed of 10 kmph.One day the cyclist come late by 25 minutes and meets the train 5 km before the crossing.What is the speed of the train?

Q: A long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would dete

Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter

Q: Jarius and Kylar are playing the game. If Jarius wins, then he wins twice as many games as Kylar. If Jarius loses, then Kylar wins as the same number of games that Jarius wins. How many do Jarius and Kylar play before this match?

Q: Give two dice - one is a standard dice, the other is blank (nothing painted on any of the faces). The problem is to paint the blank dice in such a manner so that when you roll both of them together, the sum of both the faces should lie between 1 and 12. Numbers from 1-12 (both inclusive) equally likely.

Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....

Q: An escalator is descending at constant speed. A walks down and takes 50 steps to reach the bottom. B runs down and takes 90 steps in the same time as A takes 10 steps. How many steps are visible when the escalator is not operating. 

Q: A family X went for a vacation. Unfortunately it rained for 13 days when they were there. But whenever it rained in the mornings, they had clear afternoons and vice versa. In all they enjoyed 11 mornings and 12 afternoons. How many days did they stay there totally?

Q: A Man is sitting in the last coach of train could not find a seat, so he starts walking to the front coach ,he walks for 5 min and reaches front coach. Not finding a seat he walks back to last coach and when he reaches there,train had completed 5 miles. what is the speed of the train ?

Q: Joe started from Bombay towards Pune and her friend julie in opposite direction. they met at a point . distance traveled by joe was 1.8 miles more than that of julie.after spending some both started there way. joe reaches in 2 hours while julie in 3.5 hours.Assuming both were traveling with constant speed. What is the distance between the two cities.

Q: There are some chickens in a poultry. They are fed with corn. One sack of corn will come for 9 days. The farmer decides to sell some chickens and wanted to hold 12 chicken with him. He cuts the feed by 10% and sack of corn comes for 30...

Q: In mathematics country 1,2,3,4....,8,9 are nine cities. Cities which form a no. that is divisible by 3 are connected by air planes. (e.g. cities 1 & 2 form no. 12 which divisible by 3 then 1 is connected to city 2). Find the total no. of ways you can go to 8 if you are allowed to break the journeys.

Q: A is driving on a highway when the police fines him for over speeding and exceeding the limit by 10 km/hr. At the same time B is fined for over speeding by twice the amount by which A exceeded the limit. If he was driving at 35 km/hr what is the speed limit for the road?