Scale Engineer

Senior Software Engineer

Software EngineerL3Hard

The Senior Software Engineer (L3) interview at Remitly is a comprehensive process designed to assess a candidate's technical expertise, problem-solving abilities, system design skills, and cultural fit. The process typically involves multiple rounds, including initial screening, technical interviews, a system design round, and a behavioral/managerial interview. The goal is to identify candidates who can not only write high-quality code but also contribute to architectural decisions, mentor junior engineers, and thrive in Remitly's fast-paced, collaborative environment.

Rounds·3

Timeline·~14d

Experience·5 - 10 yrs

Comp band·US$140000 - US$180000

Interview time·150 min

Evaluation

What they measure.

  • Problem-solving approach and analytical skills
  • Code quality, efficiency, and correctness
  • Understanding of data structures and algorithms
  • System design principles and trade-off analysis
  • Communication and collaboration skills
  • Cultural fit and alignment with Remitly's values

Preparation

How to prepare.

Tips

  1. Thoroughly review data structures and algorithms, focusing on their practical application.
  2. Practice coding problems on platforms like LeetCode, HackerRank, or Coderbyte, paying attention to time and space complexity.
  3. Study system design concepts, including scalability, availability, consistency, and common design patterns (e.g., load balancing, caching, message queues).
  4. Prepare to discuss your past projects in detail, highlighting your contributions and technical challenges.
  5. Understand Remitly's business, products, and values. Research recent news and company initiatives.
  6. Practice behavioral questions using the STAR method (Situation, Task, Action, Result).
  7. Prepare thoughtful 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 fundamentals. Practice 2-3 problems daily.

Weeks 1-2: Focus on core data structures (arrays, linked lists, trees, graphs, hash maps) and algorithms (sorting, searching, dynamic programming, recursion). Practice implementing these in your preferred language and analyze their time/space complexity. Solve at least 2-3 problems per day.

Questions

Commonly asked.

  • Describe a complex system you designed or significantly contributed to. What were the key challenges and how did you address them?
  • How would you design a URL shortening service like bit.ly?
  • Given a large dataset of user transactions, how would you identify fraudulent activities?
  • Explain the CAP theorem and its implications for distributed systems.
  • Tell me about a time you had to debug a critical production issue. What was your process?
  • How do you approach code reviews?
  • What are the trade-offs between using a relational database and a NoSQL database for a payment processing system?
  • Describe a situation where you had to work with a difficult stakeholder. How did you manage the relationship?
  • How do you ensure the security of the applications you build?
  • What are your thoughts on microservices vs. a monolith architecture for a growing fintech company?

Locations

Regional differences.

Fig · Regions — 03 locations

01 / 03

Location

Seattle

Interview focus

Emphasis on distributed systems design and scalability, given Remitly's global operations.Understanding of financial transaction processing and security considerations.Ability to articulate complex technical concepts clearly and concisely.Demonstrated experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).

Common questions

  • How would you design a system to handle real-time currency exchange rate updates for a global remittance service?
  • Describe a challenging technical problem you solved in a previous role and how you approached it.
  • Tell me about a time you had to deal with a production issue under pressure. What was your process?
  • How do you ensure the scalability and reliability of distributed systems?
  • What are your thoughts on microservices vs. monolithic architectures in the context of a financial technology company?

Tips

  • Research Remitly's business model and the challenges of the fintech industry.
  • Be prepared to discuss your experience with high-throughput, low-latency systems.
  • Familiarize yourself with common distributed system patterns and trade-offs.
  • Practice explaining your thought process for system design problems, considering various constraints.
  • Highlight any experience with internationalization and localization in software development.

Rounds

Round-by-round.

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

DSA

Coding questions at Remitly.

Frequently reported on Remitly loops

View all at Remitly

Other guides

More at Remitly.