Scale Engineer

Software Engineer

Software EngineerBA4Medium

Barclays is looking for talented Software Engineers at the BA4 level to join our dynamic technology teams. This role involves designing, developing, and maintaining robust software solutions that drive our business forward. We are seeking individuals with a strong technical foundation, a passion for problem-solving, and a collaborative spirit.

Rounds·4

Timeline·~14d

Experience·2 - 5 yrs

Comp band·US$85000 - US$120000

Interview time·210 min

Evaluation

What they measure.

  • Technical Proficiency: Assesses depth of knowledge in programming languages, data structures, algorithms, and system design.
  • Problem-Solving Skills: Evaluates the ability to analyze problems, devise efficient solutions, and implement them effectively.
  • Communication Skills: Measures clarity in explaining technical concepts, active listening, and interpersonal effectiveness.
  • Teamwork and Collaboration: Assesses the ability to work effectively with others, share knowledge, and contribute to team goals.
  • Cultural Fit: Determines alignment with Barclays' values, work ethic, and collaborative environment.

Preparation

How to prepare.

Tips

  1. Brush up on fundamental computer science concepts, including data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, graph traversal).
  2. Practice coding problems on platforms like LeetCode, HackerRank, or Coderbyte, focusing on medium-difficulty problems.
  3. Review object-oriented programming (OOP) principles and design patterns.
  4. Understand the software development lifecycle (SDLC) and agile methodologies.
  5. Prepare to discuss your past projects in detail, highlighting your contributions, challenges faced, and solutions implemented.
  6. Research Barclays' technology stack and recent projects to tailor your answers.
  7. Practice behavioral questions using the STAR method (Situation, Task, Action, Result).
  8. Be ready to discuss your understanding of system design principles, scalability, and performance optimization.
  9. Familiarize yourself with common database concepts and SQL.
  10. Prepare questions to ask the interviewer about the role, team, and company culture.

Study plan

Fig · Study plan — 04 phases

01 / 04
01

Phase 01 of 04

Data Structures and Algorithms

Weeks 1-2: Data Structures & Algorithms. Practice coding problems.

Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, stacks, queues, trees (binary, BST, AVL), graphs, hash tables. Implement common algorithms like sorting (merge sort, quicksort), searching (binary search), graph traversal (BFS, DFS), and dynamic programming basics. Practice coding problems related to these topics.

Questions

Commonly asked.

  • Tell me about yourself.
  • Why are you interested in Barclays?
  • Describe a complex technical problem you solved.
  • How do you handle tight deadlines?
  • What are your strengths and weaknesses?
  • Describe a time you disagreed with a team member.
  • How do you approach learning a new technology?
  • What are your career aspirations?
  • Explain a concept like RESTful APIs or microservices.
  • Write a function to reverse a linked list.
  • Design a URL shortening service.
  • How would you optimize a slow database query?

Locations

Regional differences.

Fig · Regions — 03 locations

01 / 03

Location

London

Interview focus

Understanding of core Java/Python/C++ concepts.Problem-solving skills through coding challenges.Behavioral aspects related to teamwork and communication.Familiarity with financial services industry concepts (basic).

Common questions

  • Describe a challenging project you worked on and how you overcame obstacles.
  • How do you ensure the quality and reliability of your code?
  • What are your thoughts on agile development methodologies?
  • Tell me about a time you had to work with a difficult stakeholder.

Tips

  • Research Barclays' recent technological advancements and projects.
  • Be prepared to discuss your experience with cloud technologies (AWS, Azure, GCP).
  • Practice explaining technical concepts clearly and concisely.
  • Showcase your ability to adapt to new technologies and learn quickly.

Rounds

Round-by-round.

Expand a step for evaluation criteria, sample questions, and prep notes.

DSA

Coding questions at Barclays.

Frequently reported on Barclays loops

View all at Barclays

Other guides

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