Top 50

Prep plan

Updated weekly · Last refresh Aug 30

SoFi Software Engineer Interview Questions

The questions to prepare for a SoFi Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions

~8htotal time

Track your progressSign up free to work through all 50 questions and resume where you left off.

Start practicing free →

1

CodingStart here. 22 questions · ~214 min

Dependency Graph Build OrderMedium

Generate a valid SoFi component build order with Kahn's topological sort and detect circular dependencies.

Dynamic ProgrammingGraphs

Circular Array QueueEasy

Practice

Simulate SoFi payment events with a fixed-capacity circular queue and O(1) enqueue and dequeue operations.

QueueData Structures

SoFi

Min Subarray with K DistinctMedium

Practice

Find the shortest contiguous array window containing at least k distinct values using a sliding window and frequency map.

ArraysSliding Window

SoFi

More Coding questions with a free account

2

System Design13 questions · ~127 min

Rate Limiter for Product Launch SpikesMedium

Evaluates system design choices for protecting APIs during traffic surges.

GIF Sharing Service Similar to PinterestHard

Assesses system design thinking for a consumer content-sharing platform.

design

SoFi

More System Design questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan

3

Execution8 questions · ~78 min

Team Effectiveness and Roadmap PlanningHard

Evaluates leadership practices for metrics, planning, and execution alignment.

system design

SoFi

First 30-60 Days PlanMedium

Assesses your onboarding strategy, prioritization, and ability to ramp quickly.

SoFi

More Execution questions with a free account

4

Behavioral & Leadership6 questions · ~58 min

More Behavioral & Leadership questions with a free account

5

More topics1 question · ~10 min

SQL and Multithreading CodingMedium

Evaluates SQL proficiency and understanding of concurrency concepts in code.

multithreadingsql query

SoFi

Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min

Find Drivers of Backlog GrowthHard

Use window functions and date bucketing to identify which queues drive backlog growth over time.

Window FunctionsDate FunctionsRunning Totals

SQL Average Selling PriceMedium

Calculate weighted average selling prices by product using a date-range join, aggregation, and NULL handling.

Detect Shared Payment MethodsMedium

Use joins, a CTE, and HAVING to find payment methods linked to multiple Lyft user accounts.

fraud detectionsql querydata integrity

The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.