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Barclays Senior Software Engineer Interview Questions and Answers
5 Interview questions
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
HashMap uses the hashCode() method of keys to...
A trading process involves buying and selling financial instruments in the market.
Research and analysis of market trends and opportunities
Placing buy or sell orders through a trading platform
Monitoring and managing open positions
Executing trades based on predetermined strategies
Recording and analyzing trade data for performance evaluation
GC stands for Garbage Collection, a process in programming languages where unused memory is automatically reclaimed.
Types of GC include: Mark and Sweep, Reference Counting, Generational, and Incremental.
Mark and Sweep: Identifies and removes unreachable objects.
Reference Counting: Keeps track of the number of references to an object and deletes it when the count reaches zero.
Generational: Divides objects into diff...
JIT compiler stands for Just-In-Time compiler, which compiles code during runtime instead of ahead of time.
JIT compiler improves performance by compiling code on the fly as it is needed
It converts bytecode into native machine code for execution
Examples include Java HotSpot JIT compiler and .NET JIT compiler
Futures are financial contracts that obligate the buyer to purchase an asset or the seller to sell an asset at a predetermined future date and price.
Futures are standardized contracts traded on exchanges, where the buyer agrees to purchase an asset at a future date for a price agreed upon today.
They are commonly used in commodities, currencies, and financial instruments trading.
Futures allow investors to hedge aga...
Barclays Senior Software Engineer Interview Experiences
3 interviews found
Anonymous
(5 Questions)
- Q1. Lots of technical questions but the interview was not technical..
- Q2. What is JIT compiler
- Ans.
JIT compiler stands for Just-In-Time compiler, which compiles code during runtime instead of ahead of time.
JIT compiler improves performance by compiling code on the fly as it is needed
It converts bytecode into native machine code for execution
Examples include Java HotSpot JIT compiler and .NET JIT compiler
- Q3. What are futures
- Q4. What is GC and what types we have
- Q5. Walk me through a trading process
- Ans.
A trading process involves buying and selling financial instruments in the market.
Research and analysis of market trends and opportunities
Placing buy or sell orders through a trading platform
Monitoring and managing open positions
Executing trades based on predetermined strategies
Recording and analyzing trade data for performance evaluation
Barclays HR Interview Questions
Selected
I applied via Recruitment Consulltant and was interviewed before Sep 2023. There were 4 interview rounds.
3 coding questions on hacekrank platform
(2 Questions)
- Q1. Internal working of hashmap
- Ans.
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
HashMap uses the hashCode() method of keys to calc...
- Q2. Springbbot, Microservices questions
(2 Questions)
- Q1. Project related
- Q2. System design questions
(2 Questions)
- Q1. General HR Discussion
- Q2. Why you want join the company
Skills evaluated in this interview
(1 Question)
- Q1. Python basics ,sql and unix shell
(1 Question)
- Q1. Why Barclays and best work you did till now?
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
I appeared for an interview before Mar 2016.
Interview Questionnaire
2 Questions
- Q1. Some technical questions were asked
- Q2. They spring hibernate MVC flow and core java and Oracle connectivity questions
Interview Preparation Tips
Experience: There was a Team manager and his junior for the interview
Simple algorithm question about sorting
(2 Questions)
- Q1. Algorith question about quick sort
- Q2. Nlonn run time of the sort
- Ans.
The time complexity of the quicksort algorithm is O(n log n).
Quicksort has an average time complexity of O(n log n).
The best case time complexity of quicksort is O(n log n) when the pivot element divides the array into two equal halves.
The worst case time complexity of quicksort is O(n^2) when the pivot element is the smallest or largest element in the array.
Skills evaluated in this interview
Selected
HackerEarth / Hacker rank Test
(1 Question)
- Q1. Find the lowest cost when given days you want to use metro if you have cost of a day 1 ,7 and 30 day pass. DP Problem
- Ans.
Using dynamic programming to find the lowest cost for metro passes based on given days.
Create an array to store the minimum cost for each day.
Iterate through each day and calculate the minimum cost based on 1, 7, or 30 day pass.
Update the minimum cost for each day using dynamic programming.
Return the minimum cost for the total number of days needed.
(1 Question)
- Q1. Normal HR Questions
Interview Preparation Tips
Skills evaluated in this interview
I applied via Recruitment Consulltant and was interviewed in Nov 2021. There were 3 interview rounds.
Basic data structure related coding questions like creating a linked list and adding items to it median.
Max heap implementation.
Concurrency related questions.
(1 Question)
- Q1. Senior developer was taking the round, covering all design and architecture related questions. I was able to give a satisfactory solution.
(1 Question)
- Q1. Just some behavioural question along with a lil bit technical questions. Asked me about my current projects and problems faced, how i gave a proper solution and how i help my team to grow.
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
DSA , LLD on bar raiser
DSA, SQL and discussions around projects
(1 Question)
- Q1. Design a notification system
Skills evaluated in this interview
Software Developer Interview Questions & Answers
ICICI Bank
gogikar udaya bhanu
posted on 10 Mar 2022
Topic wt is ms office
Eassys dscover the basic structure of all essaysand see what a goo d essay introduction and conclusion look like
(1 Question)
- Q1. Ppt presentations and techical skillsare the abilities and knowledge needed to performtastks
Interview Preparation Tips
Joins, Jobs, stored procedures,cursors.
(1 Question)
- Q1. What is my package
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Overall Interview Experience Rating
based on 2 interview experiences
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Barclays Senior Software Engineer Reviews and Ratings
based on 23 reviews
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