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Growth · Software Engineer Interview Guide

How to Pass the Legora Software Engineer Interview in 2026

The Legora DNA (TL;DR)

Legora values problem-solving, data-driven decision-making, and understanding how one's role scales our workflow automation platform. We seek proactive, customer-centric individuals thriving in a fast-paced SaaS environment.

The Legora Interview Loop

Your onsite loop will typically consist of 5 rounds.

  1. 1

    Round 1

    Recruiter Screen
    Motivation, role fit, logistics.
  2. 2

    Round 2

    Coding Screen
    LeetCode-medium algorithmic problems under time pressure.
  3. 3

    Round 3

    System Design
    Distributed systems, trade-offs at scale, architecture under constraints.
  4. 4

    Round 4

    Onsite Coding
    LeetCode-hard, debugging, code clarity, edge cases.
  5. 5

    Round 5

    Behavioral / Leadership
    Past evidence of ownership, influence, resolving conflict.

The Danger Zone: Top Reasons Candidates Fail

Based on our database of Legora interview outcomes, avoid these common traps:

  • Not handling distributed environments correctly if the API is scaled across multiple instances.
  • Not considering potential race conditions or error handling in parallel operations.
  • Describing a situation where things were already going well.
  • Blaming others or presenting a one-sided view.

Test Yourself: Real Legora Questions

Three real prompts pulled from our database.

Type · api-design

Design the API for a new feature that allows users to set up automated billing rules for their SaaS subscriptions based on usage metrics. Consider idempotency, error handling, and versioning.

Type · algorithm

Our SaaS platform allows users to create complex workflows. Implement a function to detect cycles in a directed graph representing these workflows. Return true if a cycle exists, false otherwise.

Type · motivation

What interests you about working at Legora, and how do you see your skills contributing to our mission of simplifying SaaS management for growing businesses?

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Legora Interview Question Bank

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

9 of 24 questions shown

1

Recruiter Screen

1
  1. 1

    Type · motivation

    What interests you about working at Legora, and how do you see your skills contributing to our mission of simplifying SaaS management for growing businesses?
2

Coding Screen

3
  1. 2

    Type · data-structure

    Given a stream of user login events for our SaaS platform, design a data structure to efficiently report the number of unique active users in the last 15 minutes. Assume timestamps are integers.
  2. 3

    Type · algorithm

    Our SaaS platform allows users to create complex workflows. Implement a function to detect cycles in a directed graph representing these workflows. Return true if a cycle exists, false otherwise.
  3. + 1 more questions in this round (sign up to unlock)
3

System Design

4
  1. 4

    Type · api-design

    Design the API for a new feature that allows users to set up automated billing rules for their SaaS subscriptions based on usage metrics. Consider idempotency, error handling, and versioning.
  2. 5

    Type · scalability

    Legora's user base is growing rapidly. Design a system to handle a 10x increase in concurrent users accessing our dashboard, which displays real-time usage analytics. Discuss database choices, caching strategies, and potential bottlenecks.
  3. + 2 more questions in this round (sign up to unlock)
4

Onsite Coding

3
  1. 6

    Type · algorithm

    Implement a rate limiter for our API endpoints. The limiter should allow a configurable number of requests per user per time interval (e.g., 100 requests per minute). Consider different algorithms like token bucket or leaky bucket and discuss trade-offs.
  2. 7

    Type · debugging

    A customer reports that their dashboard is occasionally showing incorrect aggregated usage data. Here's a simplified version of the data aggregation code. Find the bug and explain how you would fix it.
  3. + 1 more questions in this round (sign up to unlock)
5

Behavioral / Leadership

13
  1. 8

    Type · Conflict Resolution

    Tell me about a time you had a significant disagreement with an engineer or designer about a product decision. How did you handle it, and what was the outcome?
  2. 9

    Type · Ownership

    Tell me about a time you took ownership of a problem or project that was outside your direct responsibilities. What was the situation, and what was the outcome?
  3. + 11 more questions in this round (sign up to unlock)

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Interview tracks at Legora

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

SWEs are assessed on technical depth, designing scalable solutions for Legora's data processing engine, problem-solving, and commitment to code quality. We seek engineers who innovate within our SaaS architecture and contribute to agile development.

api-design

Design the API for a new feature that allows users to set up automated billing rules for their SaaS subscriptions based on usage metrics. Consider idempotency, error handling, and versioning.

algorithm

Our SaaS platform allows users to create complex workflows. Implement a function to detect cycles in a directed graph representing these workflows. Return true if a cycle exists, false otherwise.

+ 1 more

Unlock the Software Engineer grading rubric for Legora

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Compare Legora with similar employers

Same DNA, different bar. Browse the closest companies in our database and see how their loops differ.

Practice Legora interviews end-to-end

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