Ace Your Data Engineering
Interviews with AI
Practice with an AI interviewer that asks real questions, evaluates your answers, and gives you a hiring verdict.
Interviewer: Let's start with a system design question. How would you design a real-time analytics pipeline for an e-commerce site that processes 10,000 events per second?
What technologies would you choose and why?
I would use Apache Kafka for ingestion since it handles high throughput well. Then, I'd use Apache Flink or Spark Streaming to process the events in real-time, windowing them by minute. Finally, I'd sink the aggregated data into a real-time OLAP database like ClickHouse or Apache Druid for sub-second query latency.
Feedback: Excellent choice of technologies. Kafka + Flink + Druid is a standard, robust stack for this exact use case.
Follow-up: What happens if one of your Flink task managers crashes? How do you ensure exactly-once processing?
3 AI Agents. 1,863 Real Questions.
Our AI agents are trained on real interview data from Amazon, Google, Databricks, and 94+ more companies. They don't just chat - they interview, evaluate, and teach like senior engineers.
Interviewer Agent
FAANG Bar Raiser
Conducts realistic mock interviews using questions from real FAANG interviews. Evaluates your answers, asks follow-ups, and delivers a hire/no-hire verdict.
“How would you handle data skew in a Spark job processing 500M rows?”
Good understanding of salting technique. Mention broadcast joins for small tables.
Evaluator Agent
Hiring Committee
Scores your answers against expert-calibrated benchmarks from our database. Rates accuracy, depth, communication, and gives specific improvement areas.
“Paste your answer to any interview question”
Overall: 8/10 - Hire. Add trade-off discussion for a 10.
Explainer Agent
Senior Mentor
Breaks down complex data engineering concepts into simple, interview-ready explanations with analogies, code snippets, and follow-up questions.
“Explain the medallion architecture in a data lakehouse”
Bronze (raw) → Silver (cleaned) → Gold (business-ready). Think: factory assembly line.
All 3 agents work together, powered by 1,863 real Q&A pairs from your target companies
Start a free AI sessionReal Interview Questions
Browse questions from real data engineering interviews at top companies.
Practice These Questions with AI
Our AI Interviewer asks these exact questions, evaluates your answers, and gives you a hire/no-hire verdict.
Everything You Need to Get Hired
A complete interview preparation platform built by senior engineers.
1,800+ Real Questions
The largest collection of data engineering interview questions from real interviews at top companies.
Success Stories
Engineers who practiced these questions got offers at
Loved by Engineers at Top Companies
“Used this for 2 weeks before my loop. Got the offer. The frequency data alone is worth 10x the price.”
“The question coverage is incredible. Felt like I'd seen every question before walking into the interview.”
“Best DE interview resource I've found. The architect-level answers teach you how to think, not just what to say.”
“The system design questions are exactly what Netflix asks. Got promoted within 6 months of using it.”
“The company-specific question sets are brilliant. Practiced Goldman questions for 3 days and nailed every round.”
“Finally a resource that doesn't treat data engineering like a subset of software engineering. Real DE questions with real depth.”
7 Core Topics
Every question category you'll face in a data engineering interview.
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Simple, Transparent Pricing
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- ✓ AI Interview Coach (100/day)
- ✓ Unlimited mock interviews
- ✓ Unlimited quizzes
- ✓ Full progress tracking
- ✓ Priority support
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Frequently Asked Questions
Is this free to use?
Yes - browse 1,800+ questions free. Free accounts get 5 answer views per day plus limited AI coach access. Pro unlocks everything.
How does the AI mock interview work?
Our AI simulates real data engineering interviews. It asks questions, evaluates your answers (1-10), identifies gaps, and gives a hire/no-hire verdict.
What makes this different from LeetCode?
We focus exclusively on data engineering - SQL, Spark, pipeline design, cloud tools. Every question is from real DE interviews, not generic coding problems.
What's included in Pro?
Unlimited AI interviews, full answers to all 1,800+ questions, resume analyzer, SQL playground, personalized dashboard, and progress tracking.
What are Interview Packs?
PDF downloads for quick revision - ideal for last-minute prep. Available per topic or per company. For full prep, use the AI platform.
What companies are covered?
Questions sourced from Amazon, Google, Databricks, Snowflake, Meta, Netflix, Microsoft, Stripe, and 90+ more companies.
Ready to Ace Your Interview?
Practice with AI, get instant feedback, and track your progress. Join 98+ company question sets from Amazon, Google, Databricks, and more.