Software Engineer Other / Miscellaneous Interview Questions
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Debug wrong DOM attributes in unknown framework
Frontend Debugging Plan: Incorrect DOM Attributes in an Unfamiliar Framework Context You join a team using an unfamiliar frontend framework. In the br...
Implement tap-to-infect color grid on iOS
iOS Grid Infection (Flood Fill) Design Goal Build an iOS app that displays a 2D grid with two colors. When the user taps a cell, all 4-directionally a...
Debug a cache incident end-to-end
Incident Scenario: Elevated Latency and Surge in Cache Misses You are paged for elevated tail latency and a spike in cache misses in a microservice th...
Build an emoji blaster animation on iOS
iOS "Blaster" App: Press-and-Hold Emoji Projectiles Problem Build a minimal iOS app with a button fixed at the bottom. While the user presses and hold...
Clarify CodeSignal partial credit and score access
CodeSignal Multi‑Level Task Scoring and Score Visibility Context You are completing a multi‑level coding task on CodeSignal as part of a take‑home ass...
Implement retry wrapper and interdependent validators
Context You are implementing reusable utilities that are commonly needed in modern web apps: 1) a robust retry wrapper for functions that can fail syn...
Implement Hook and Modify UI Interactions
Task: Implement a custom React hook and wire UI interactions Context You are working in a React app that already includes a basic API module and a sim...
Implement map and render to DOM
Build a Vanilla JS map-like Utility and DOM Renderer Context You are working in a basic browser environment with no frameworks or libraries. Implement...
Develop test plan and TDD for word search
Design a Comprehensive Test Plan and TDD Workflow for Word-Search Functions Context and Assumptions We are testing two grid-based word search function...
Set up a Python LLM dev environment
Task: Reproducible Local Python Environment for a Mistral Agent You are to set up a clean, fully reproducible local Python environment to develop a sm...
Design unit tests for grid navigation
Mouse-Maze Controller: Design a Comprehensive Unit Test Suite Context (assumptions to make the task self-contained) Assume we are testing a controller...
Implement Bootstrap-like responsive utility classes
Build a Bootstrap-like Utility System and Accessible Responsive Form (No External CSS) Context You are asked to create a minimal, reusable CSS utility...
Build searchable list and highlight max transaction
UI Component: Filtered List With Max-Highlight Context Implement a small web UI component (e.g., in a modern frontend framework) that receives an arra...
Explain HTTP verbs, CSS, and accessibility
Frontend Fundamentals: HTTP Methods, CSS Styling, and Accessibility Context You are preparing for a frontend engineering interview question that spans...
Compare front-end state management approaches
Compare Redux with Modern Front-End State/Data Management and Propose an End-to-End Strategy Context You are building a React single-page application ...
Build and Validate Passport Form UI
Passport Pattern Validation UI and Logic Context: Implement this in a vanilla HTML/CSS/JavaScript environment (single file, no frameworks). You are gi...
Implement a reservation widget with pricing
Implement a Lodging Reservation Widget Context You are building a reservation widget for a property details page. The widget must let guests select da...
Implement React check-in/out month dropdowns
React UI Enhancement: Check-in/Check-out Month Dropdowns Context You are working on a hotel reservation form in a React codebase. The form needs two n...
Implement list, form, and API rendering with pitfalls
Take-home: Build a Small Frontend App (List + Form + API + A11y) Goal Implement a simple web app that demonstrates core frontend skills: rendering fro...
Implement, Debug, and Optimize a React Table
React Table Component — Design, Implementation, and Performance Context: You are building a reusable React Table component for a frontend technical sc...