About DataEngPrep
The interview prep platform built by data engineers, for data engineers.
Our Mission
Data engineering interviews are uniquely difficult. They span SQL, distributed systems, cloud architecture, pipeline design, and behavioral questions — yet most preparation resources treat data engineering as an afterthought to software engineering.
DataEngPrep exists to change that. We provide a dedicated, AI-powered platform that helps data engineers at every level — from entry-level analysts transitioning into DE roles to senior engineers preparing for Staff+ positions at FAANG companies — practice with real interview questions and receive expert-quality feedback instantly.
What We Offer
- 1,863+ Real Interview Questions — sourced from actual data engineering interviews at 98+ companies including Amazon, Google, Databricks, Snowflake, Meta, Netflix, and Microsoft. Every question includes a detailed, expert-written answer and approach guidance.
- AI Mock Interview Coach — our 3-agent AI system simulates a real interview panel: one agent plays a FAANG-caliber interviewer, another evaluates your answers against hiring committee standards, and a third acts as a Staff Engineer mentor who explains concepts in depth.
- ATS Resume Analyzer — upload your resume for instant, actionable feedback on keyword optimization, formatting, and alignment with data engineering job descriptions.
- SQL Playground — practice SQL queries in a live, browser-based environment with real datasets.
- Company-Specific Prep — filter questions by company, difficulty, and topic to build a targeted study plan.
Editorial Standards
Quality is our top priority. Every question and answer on DataEngPrep goes through a rigorous multi-step editorial process:
- Sourcing — questions are collected from verified interview experiences, community contributions, and hiring manager input.
- Expert Review — each answer is written or reviewed by practicing data engineers with hands-on experience in production systems, distributed computing, and cloud platforms.
- Categorization & Tagging — questions are categorized by topic (SQL, Spark, Python, System Design, Cloud, Behavioral), difficulty level, and originating company for effective study planning.
- Continuous Updates — our question bank is regularly updated to reflect current industry trends, new tools, and evolving interview patterns.
Who We Are
DataEngPrep was founded by experienced data engineers who went through the grueling data engineering interview circuit firsthand. After spending hundreds of hours across dozens of interviews at top tech companies, we realized the existing prep landscape was fragmented — generic LeetCode problems, scattered Medium articles, and outdated PDF question banks that didn't reflect what modern DE interviews actually look like.
We built DataEngPrep to be the single, comprehensive platform we wished existed when we were preparing. Our team combines expertise in data engineering, distributed systems, AI/ML, and full-stack development to deliver a product that genuinely helps engineers land their dream roles.
Our Technology
DataEngPrep is built on a modern tech stack designed for performance and reliability:
- AI Engine — powered by Google Gemini 2.5 Flash with custom-tuned system prompts, structured JSON output, and a 3-agent orchestration architecture for realistic interview simulation.
- Frontend — Next.js App Router with server-side rendering for fast load times and SEO.
- Authentication & Data — Firebase Auth and Firestore for secure user management and real-time usage tracking.
Get in Touch
We'd love to hear from you. Whether you have feedback, partnership proposals, or just want to say hi:
- Email: info@dataengprep.tech
- Visit our Contact page