Scale Engineer

Fellow Engineer

Software EngineerL8Hard

The Fellow Engineer (L8) interview at Upstart is a comprehensive assessment designed to evaluate a candidate's technical expertise, problem-solving abilities, system design skills, and cultural fit. This role requires a strong foundation in computer science principles, significant experience in software development, and the ability to lead and mentor other engineers.

Rounds·4

Timeline·~14d

Experience·7 - 10 yrs

Comp band·US$180000 - US$220000

Interview time·210 min

Evaluation

What they measure.

  • Technical proficiency in core computer science concepts.
  • Ability to design, build, and maintain scalable and reliable software systems.
  • Strong problem-solving and analytical skills.
  • Effective communication and collaboration skills.
  • Leadership potential and ability to mentor others.
  • Alignment with Upstart's values and culture.

Preparation

How to prepare.

Tips

  1. Review fundamental computer science concepts (data structures, algorithms, operating systems, databases).
  2. Practice coding problems on platforms like LeetCode, focusing on medium to hard difficulty.
  3. Study system design principles and common architectural patterns.
  4. Prepare to discuss your past projects in detail, focusing on your contributions and technical decisions.
  5. Research Upstart's products, mission, and values.
  6. Prepare behavioral questions using the STAR method (Situation, Task, Action, Result).
  7. Think about examples of leadership, mentorship, and overcoming technical challenges.

Study plan

Fig · Study plan — 04 phases

01 / 04
01

Phase 01 of 04

Data Structures and Algorithms

Weeks 1-2: Data Structures & Algorithms (Easy/Medium).

Weeks 1-2: Focus on Data Structures and Algorithms. Cover arrays, linked lists, trees, graphs, hash maps, heaps, sorting, searching, dynamic programming, and graph traversal algorithms. Practice problems on LeetCode (Easy/Medium).

Questions

Commonly asked.

  • Design a URL shortening service.
  • Implement a function to find the k-th largest element in an unsorted array.
  • Describe a time you disagreed with a teammate. How did you handle it?
  • How would you design a system to handle real-time notifications for millions of users?
  • What are the trade-offs between monolithic and microservices architectures?
  • Tell me about a time you failed. What did you learn from it?
  • How do you approach performance optimization in a web application?
  • Explain the concept of eventual consistency.
  • Describe a situation where you had to lead a project. What was your approach?
  • What are your thoughts on testing strategies for distributed systems?

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

San Francisco

Interview focus

Deep understanding of distributed systems and scalability.Experience with cloud-native technologies (e.g., Kubernetes, Docker).Strong leadership and mentorship capabilities.

Common questions

  • Describe a complex system you designed and the trade-offs you considered.
  • How do you approach debugging a production issue in a distributed system?
  • Tell me about a time you had to influence a team to adopt a new technology or approach.

Tips

  • Highlight experience with large-scale systems and performance optimization.
  • Be prepared to discuss your contributions to open-source projects if applicable.
  • Emphasize your ability to mentor junior engineers and drive technical initiatives.

Rounds

Round-by-round.

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

DSA

Coding questions at Upstart.

Frequently reported on Upstart loops

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Other guides

More at Upstart.