Scale Engineer

Software Engineer 1

Software EngineerL3Medium

This interview process is for a Software Engineer L3 role at Deliveroo. It is designed to assess a candidate's technical skills, problem-solving abilities, and cultural fit within the company.

Rounds·3

Timeline·~14d

Experience·1 - 3 yrs

Comp band·US$90000 - US$120000

Interview time·135 min

Evaluation

What they measure.

  • Problem-solving approach
  • Algorithmic thinking
  • Code quality and efficiency
  • Understanding of data structures

Preparation

How to prepare.

Tips

  1. Review fundamental data structures and algorithms.
  2. Practice coding problems on platforms like LeetCode or HackerRank.
  3. Understand core computer science concepts (e.g., operating systems, databases, networking).
  4. Prepare to discuss your past projects in detail, focusing on your contributions and challenges.
  5. Research Deliveroo's mission, values, and recent news.
  6. Practice behavioral questions using the STAR method (Situation, Task, Action, Result).
  7. Be ready to discuss your understanding of system design principles for scalable applications.

Study plan

Fig · Study plan — 04 phases

01 / 04
01

Phase 01 of 04

Data Structures and Algorithms

Weeks 1-2: Data Structures & Algorithms fundamentals. Practice implementations and complexity analysis.

Weeks 1-2: Focus on foundational data structures (arrays, linked lists, stacks, queues, trees, graphs, hash maps) and their common algorithms (sorting, searching, graph traversal). Practice implementing these from scratch and analyze their time and space complexity.

Questions

Commonly asked.

  • Given an array of integers, find the contiguous subarray with the largest sum.
  • Design a URL shortening service like bit.ly.
  • Tell me about a time you failed and what you learned from it.
  • How would you design a system to track the delivery status of food orders in real-time?
  • What are the trade-offs between using a relational database and a NoSQL database for a user profile service?
  • Describe a situation where you had to explain a complex technical concept to a non-technical audience.

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

London

Interview focus

Adaptability to local market nuances.Understanding of regional tech trends.Communication skills in the local language.

Common questions

  • Tell me about a time you had to deal with a difficult stakeholder.
  • How do you prioritize your work when faced with multiple urgent tasks?
  • Describe a challenging technical problem you solved and how you approached it.

Tips

  • Research Deliveroo's presence and operations in this specific region.
  • Be prepared to discuss projects relevant to the local market.
  • Highlight any experience working with diverse, international teams.

Rounds

Round-by-round.

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

DSA

Coding questions at Deliveroo.

Frequently reported on Deliveroo loops

View all at Deliveroo

Other guides

More at Deliveroo.