Hack2Fire
Log in

hack2fire.com

Real interviewquestion bank

Practice company-style coding, system design, video, and Markdown prompts with role-based contribution, review, and versioned content publishing.

Realistic prompts

Company-flavored drills with examples, constraints, follow-ups, and rich Markdown.

Versioned solutions

Every edit creates a new content version that admins can review and publish.

Community workflow

Contributors submit questions while admins manage categories, templates, and approvals.

Stay interview-ready across coding, systems, and behavioral loops.

SearchCloudMarketplacesPaymentsAI PlatformsConsumer Apps

Product workflow

From practice to reviewed content.

Coding Practicemedium

Rate Limited Event Stream

Design an iterator that emits events while respecting per-customer windows.

Practice top interview questions and stay ahead.

Browse curated categories, open a prompt, write notes and code, and track saved attempts without leaving the page.

v3reviewImprove edge cases
v2publishedCleaner solution
v1publishedInitial prompt

Contributors can ship improvements without breaking live content.

New edits become reviewable versions. Admins preview, approve, archive, or publish a specific version.

Stop scrolling. Start practicing.

One workspace for every question type.

Coding QuestionSystem DesignML System DesignBehavioral

Practice mode

Prompt, code, video, and solution notes in one workspace.

type Event = { customerId: string; timestamp: number };

export function filterEvents(events: Event[]) {
  const windows = new Map<string, number[]>();
  return events.filter(event => accepts(event, windows));
}

Question bank

Start with seeded practice content.

Open catalog

News Feed Fanout Review

Compare fanout-on-write and fanout-on-read for a social feed under spiky celebrity traffic.

hardSystem DesignConsumer Socialsystem-designfeedscachingmarkdown
Practice

Rate Limited Event Stream

Design an iterator that emits events while respecting per-customer rate limits.

mediumCoding PracticePlatform Infraheapqueuerate-limitingsystems
Practice

Supercharge your interview loop

Practice, contribute, review, and publish in one platform.