Πόσο διαρκεί η διαδικασία συνέντευξης της Barclays;

Οι περισσότεροι υποψήφιοι ξοδεύουν 4 έως 8 εβδομάδες από το screen recruiter μέχρι την προσφορά. Το ίδιο το onsite loop τρέχει σε μία μέρα ή χωρίζεται σε δύο μισές ημέρες, με debrief και προσφορά τυπικά μέσα σε 5 εργάσιμες ημέρες μετά.

Πώς πρέπει να προετοιμαστώ ειδικά για την Barclays;

Εστιάστε σε τρία πράγματα: (1) στο DNA της εταιρείας που δείχνεται παραπάνω — τι βαθμολογούν πραγματικά, (2) στους γύρους του loop σας, ειδικά τον γύρο που οι περισσότεροι υποψήφιοι υποτιμούν, και (3) σε εξάσκηση στους τύπους ερωτήσεων αυτού του οδηγού χρησιμοποιώντας ένα δομημένο πλαίσιο όπως CIRCLES ή STAR.

Ισχύει αυτό για ρόλους engineering ή design στην Barclays;

Το DNA παραμένει το ίδιο — αυτό που αλλάζει είναι ο συνδυασμός γύρων. Οι υποψήφιοι SWE αντιμετωπίζουν coding screens αντί για Product Sense· οι designers αντιμετωπίζουν portfolio reviews και ασκήσεις σχεδιασμού. Το «τι εκτιμούν» και τα συμπεριφορικά σήματα μεταφέρονται σε όλες τις λειτουργίες.

Why are you interested in a Software Engineer role at Barclays, and what aspects of our work in financial technology excite you the most?

Type: Motivation. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Given a list of stock trades, each with a timestamp, ticker symbol, and price, write a function to find the maximum profit that could have been made by buying and selling a single stock once. Assume you must buy before you sell.

Type: Algorithmic. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Implement a function that takes a string representing a financial transaction ID and returns true if it's valid, false otherwise. A valid ID must start with 'TXN', followed by 8 digits, and end with a check digit calculated as the sum of the digits modulo 10.

Type: Algorithmic. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Design a system to process and store real-time stock market data feeds from multiple exchanges. The system should be able to handle high throughput, provide low-latency access for trading algorithms, and support historical data analysis.

Type: System Design. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Design a rate limiter for API requests to a banking service. It needs to be distributed, accurate, and handle bursts of traffic effectively, ensuring fair usage across different clients.

Type: System Design. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

You are given a list of financial instruments, each with a purchase date, price, and quantity. Write a function to calculate the average cost basis for a specific instrument, considering FIFO (First-In, First-Out) accounting. Handle partial sales correctly.

Type: Algorithmic. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Tell me about a time you had to work with a stakeholder from a non-technical background (e.g., business analyst, product manager) to deliver a technical solution. How did you ensure clear communication and alignment?

Type: Behavioral. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Describe a complex technical problem you encountered in a previous project. Walk me through your process for diagnosing the issue, what steps you took to resolve it, and what you learned from the experience.

Type: Behavioral. Sign up at JobMentis to see the full framework, grading signals, and worked answer for this question.

Other roles at Barclays:IB Analyst Software Engineer

Enterprise · Software Engineer Interview Guide

How to Pass the Barclays Software Engineer Interview in 2026

Το DNA της Barclays (TL;DR)

Barclays values candidates who demonstrate strong analytical rigor and a pragmatic approach to problem-solving, particularly in navigating complex financial markets and regulatory environments. They seek individuals who can translate abstract concepts into actionable strategies and communicate them clearly and concisely.

Οι συνεντεύξεις tech διεξάγονται στα αγγλικά

Ακόμη κι όταν κάνετε αίτηση τοπικά, η ίδια η συνέντευξη γίνεται σχεδόν πάντα στα αγγλικά. Σας δείχνουμε κάθε ερώτηση και prompt πρώτα στα αγγλικά — τη γλώσσα στην οποία θα γίνει η συνέντευξη — με μετάφραση από κάτω για να προετοιμαστείτε στην ισχυρότερη γλώσσα σας.

Το Interview Loop της Barclays

Το onsite loop σας θα αποτελείται τυπικά από 5 γύρους.

1
Γύρος 1
Recruiter Screen
Motivation, role fit, logistics.
2
Γύρος 2
Coding Screen
LeetCode-medium algorithmic problems under time pressure.
3
Γύρος 3
System Design
Distributed systems, trade-offs at scale, architecture under constraints.
4
Γύρος 4
Onsite Coding
LeetCode-hard, debugging, code clarity, edge cases.
5
Γύρος 5
Behavioral / Leadership
Past evidence of ownership, influence, resolving conflict.

Η ζώνη κινδύνου: Κορυφαίοι λόγοι που οι υποψήφιοι αποτυγχάνουν

Με βάση τη βάση δεδομένων μας με αποτελέσματα συνεντεύξεων Barclays, αποφύγετε αυτές τις συνηθισμένες παγίδες:

Describing a situation without explaining their specific actions or the resolution.
Denying ever failing or being unable to provide a specific example.
Generic answer not specific to finance or Barclays.
Not clearly articulating the outcome or lessons learned.

Δοκιμάστε τον εαυτό σας: Πραγματικές ερωτήσεις Barclays

Τρία πραγματικά prompts τραβηγμένα από τη βάση δεδομένων μας.

Τύπος · Debugging

A microservice responsible for calculating loan interest is producing incorrect results intermittently. Here's a simplified version of the code [provide code snippet]. Identify the bug, explain why it occurs, and provide a corrected version.

Τύπος · Behavioral

Tell me about a time you disagreed with a decision made by your team or manager. How did you approach the situation, and what was the outcome?

Τύπος · Resilience

Tell me about a time you faced a significant setback or failure. What did you learn from it, and how did you move forward?

+ πολλές ακόμη ερωτήσεις, σήματα και επεξεργασμένα παραδείγματα

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Barclays Interview Question Bank

A sample from our database, grouped by round. Sign up to see the full set.

9 of 15 questions shown

Recruiter Screen

1
Τύπος · Motivation
Why are you interested in a Software Engineer role at Barclays, and what aspects of our work in financial technology excite you the most?

Coding Screen

2
Τύπος · Algorithmic
Given a list of stock trades, each with a timestamp, ticker symbol, and price, write a function to find the maximum profit that could have been made by buying and selling a single stock once. Assume you must buy before you sell.
3
Τύπος · Algorithmic
Implement a function that takes a string representing a financial transaction ID and returns true if it's valid, false otherwise. A valid ID must start with 'TXN', followed by 8 digits, and end with a check digit calculated as the sum of the digits modulo 10.
+ 1 more questions in this round (sign up to unlock)

System Design

4
Τύπος · System Design
Design a system to process and store real-time stock market data feeds from multiple exchanges. The system should be able to handle high throughput, provide low-latency access for trading algorithms, and support historical data analysis.
5
Τύπος · System Design
Design a rate limiter for API requests to a banking service. It needs to be distributed, accurate, and handle bursts of traffic effectively, ensuring fair usage across different clients.
+ 1 more questions in this round (sign up to unlock)

Onsite Coding

6
Τύπος · Algorithmic
You are given a list of financial instruments, each with a purchase date, price, and quantity. Write a function to calculate the average cost basis for a specific instrument, considering FIFO (First-In, First-Out) accounting. Handle partial sales correctly.
7
Τύπος · Debugging
A microservice responsible for calculating loan interest is producing incorrect results intermittently. Here's a simplified version of the code [provide code snippet]. Identify the bug, explain why it occurs, and provide a corrected version.
+ 1 more questions in this round (sign up to unlock)

Behavioral / Leadership

8
Τύπος · Behavioral
Tell me about a time you had to work with a stakeholder from a non-technical background (e.g., business analyst, product manager) to deliver a technical solution. How did you ensure clear communication and alignment?
9
Τύπος · Behavioral
Describe a complex technical problem you encountered in a previous project. Walk me through your process for diagnosing the issue, what steps you took to resolve it, and what you learned from the experience.
+ 3 more questions in this round (sign up to unlock)

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Interview tracks at Barclays

How Barclays's DNA translates across functions. Pick your role.

Software Engineers at Barclays are expected to build robust, scalable, and secure systems that underpin critical financial operations. Expect to be tested on your data structures and algorithms knowledge, system design capabilities for high-throughput trading or risk management platforms, and your understanding of secure coding practices relevant to financial data.

Debugging

Behavioral

Tell me about a time you disagreed with a decision made by your team or manager. How did you approach the situation, and what was the outcome?

+ 1 more

Unlock the Software Engineer grading rubric for Barclays

See full Software Engineer guide