SoFi Interview Question Bank
SoFi's engineering interviews mix Karat-style screens, practical frontend builds, backend coding, and manager-led project depth. The loop rewards candidates who can clarify ambiguous product requirements, keep implementation details tidy under HackerRank or Karat constraints, and explain trade-offs without drifting away from the requested scope.
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Reachable Nodes in a Directed GraphImplement a GIF Data Structure / Decoder-Related Problem (LinkedList + HashMap)Extend an Existing Codebase to Support Accessibility Requirements (AI Coding)Count completed trips from vehicle event logs (entry -> road -> exit)LeetCode 1198 — Find Smallest Common Element in All RowsImplement Button-Triggered Fetch with Lazy Loading in Vanilla JavaScriptBuild a Search Bar with HTML/CSS (No Framework)K-th Unique Maximum from Two Sorted ArraysRunCollection: Simulate chance of matching or beating personal bestSecond Most Frequent Tag from Flattened TriplesDesign a Multi-threaded Task Executor with Extensible Task Types (Semaphore-based)Count Complete Highway Journeys from Sensor LogsDebug a Journey Counting ImplementationGraph Variant: Endings Reachable Only If Both Options Are Explored (Follow-up)Interactive Story Endings Reachability (Choices/Options)AI-assisted Coding: Extend a Vite + shadcn UI App from a Partial StarterReact UI Coding: Loan Calculator (with a11y, debounce, caching follow-ups)Lazy-loaded List with Paginated Fetch (10 items per page)Implement a Typeahead UI (HTML/CSS)Basic Text Justification (without full padding to fixed width)Array and DFS with BacktrackingCount Same Bit NumbersMaximum Positive PrefixesMaximum Occurring CharacterTic Tac Toe ImplementationLRU Cache ImplementationBinary Tree with 0 and 1 ValuesBasic CalculatorFind second most frequent tagFind the distance from mid index to closest index