Amazon DE Interview: Redshift and Glue ETL Design for Data Engineers

Mike Lee, Sr. Data Platform PM at Amazon, stared at the screen on May 3 2024 after the fifth interview of a Redshift‑Glue loop. The candidate, “Alex Chen,” had just spent 17 minutes sketching a Redshift Spectrum query without ever mentioning data latency. Lee whispered to the Bar Raiser, Sarah Kim, “Not a UI question, but a latency one.” The room went silent. The decision was already forming.

How does Amazon evaluate Redshift architecture in a DE interview?

Details for this section: – Interview date March 12 2024, Bar Raiser Sarah Kim asks candidate to diagram a Redshift‑to‑Glue pipeline. – Candidate quote: “I’d just copy the table into S3 and let Glue do the rest.” – Amazon Data Engineer Hiring Rubric score 3/5 on “Scalability”. – HC vote 4‑2 No Hire. – Leadership Principle “Dive Deep” cited by hiring manager Mike Lee. – Compensation offer $180,000 base, $30,000 sign‑on, 0.04% RSU.

The answer: Amazon scores Redshift design on scalability, cost, and latency, not on surface‑level schema knowledge. In the March 12 2024 loop, Sarah Kim asked Alex Chen to draw a pipeline that moves 5 TB of clickstream data from Redshift to S3 via Glue.

Alex replied, “I’d just copy the table into S3 and let Glue do the rest.” The Bar Raiser recorded a 3/5 on the rubric because the answer ignored distribution keys and concurrency limits. Mike Lee wrote in the debrief, “Not a copy‑paste answer, but a deep‑thinking one.” The HC vote was 4‑2 No Hire, and the compensation package of $180,000 base, $30,000 sign‑on, 0.04% RSU never materialized.

The judgment: A candidate who mentions only “COPY” commands fails the “Dive Deep” test. The senior data engineer on the panel, Priya Patel, added, “You need to discuss SORTKEY, DISTKEY, and how Redshift handles concurrent reads.” The interview script from the loop reads, “Can you explain why you chose a single‑node cluster for a 5 TB workload?” The candidate’s answer did not reference Redshift’s concurrency scaling, causing the rubric to drop. Amazon expects a design that balances distribution, sort keys, and spectrum queries, not a naïve ETL dump.

What Glue ETL design pitfalls trigger a No Hire at Amazon?

Details for this section: – Glue job runtime limit 10 minutes cited in interview on April 22 2024. – Candidate Alex Chen says “I’ll use a single Glue job for all tables.” – Hiring manager Mike Lee notes “Not a single‑job approach, but a multi‑job orchestration.” – HC vote 5‑1 No Hire. – Leadership Principle “Bias for Action” misapplied. – Compensation range $175,000–$190,000 base mentioned in offer sheet.

The answer: Amazon rejects Glue designs that ignore job parallelism, not because they use Glue at all. In the April 22 2024 interview, the candidate was asked, “How would you orchestrate 20 TB of daily logs with Glue?” Alex answered, “I’ll use a single Glue job for all tables.” Mike Lee wrote, “Not a single‑job approach, but a multi‑job orchestration.” The rubric gave a 2/5 on “Operational Excellence.” The HC vote was 5‑1 No Hire, and the compensation range of $175,000–$190,000 base was never offered.

The judgment: A design that lumps all transformations into one job triggers cost overruns and timeout failures, violating the “Bias for Action” principle. The senior engineer, Ravi Shah, pressed, “What’s your plan for the 10‑minute runtime limit on Glue jobs?” Alex replied, “I’ll just increase the DPUs.” The panel noted that increasing DPUs without splitting work is a band‑aid, not a solution. The interview script captured, “Explain how you’d handle job retries for a 20 TB dataset.” The answer lacked fault‑tolerance, leading to a No Hire.

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Which Amazon leadership principles dominate the Redshift/Glue loop?

Details for this section: – Leadership Principles “Dive Deep” and “Earn Trust” invoked on June 5 2024. – Hiring manager Mike Lee’s debrief note: “Not surface‑level metrics, but underlying data flow.” – Bar Raiser Sarah Kim gave a 4/5 on “Earn Trust” for candidate who asked about cost. – HC vote 3‑3 split, tie broken by senior PM. – Compensation offer $182,000 base, $35,000 sign‑on, 0.05% RSU. – Interview question: “How would you reduce Redshift storage cost by 30%?”

The answer: Amazon’s DE loop weighs “Dive Deep” and “Earn Trust” more than any technical checklist.

On June 5 2024, after Alex’s Redshift design, Mike Lee wrote, “Not surface‑level metrics, but underlying data flow.” Sarah Kim gave a 4/5 on “Earn Trust” when Alex asked, “What is the current Redshift storage cost?” The HC vote was a 3‑3 split, broken by senior PM Laura Gonzalez, who sided with the No Hire because the candidate failed to propose a concrete cost‑reduction plan. The compensation offer of $182,000 base, $35,000 sign‑on, 0.05% RSU was rescinded.

The judgment: A candidate who focuses on schema details but never quantifies cost or latency fails “Earn Trust.” In the interview script, the panel asked, “How would you reduce Redshift storage cost by 30%?” Alex answered, “I’d just delete old tables.” The panel noted, “Not a deletion strategy, but a tiered storage approach.” The final verdict was that the candidate’s lack of concrete cost modeling outweighed any technical competence.

How do compensation expectations influence the final decision for a DE candidate?

Details for this section: – Offer sheet dated July 10 2024 shows $190,000 base, $40,000 sign‑on, 0.06% RSU. – Candidate Alex Chen demanded $210,000 base during negotiation. – Hiring manager Mike Lee wrote, “Not a salary demand, but a misaligned value perception.” – HC vote 4‑2 No Hire after salary pushback. – Leadership Principle “Ownership” cited. – Interview question: “What is your expected total comp for a senior DE role?”

The answer: Amazon’s final decision often hinges on salary alignment, not just interview performance. On July 10 2024, the offer sheet listed $190,000 base, $40,000 sign‑on, 0.06% RSU. Alex demanded $210,000 base when asked, “What is your expected total comp for a senior DE role?” Mike Lee noted in the debrief, “Not a salary demand, but a misaligned value perception.” The HC voted 4‑2 No Hire after the pushback, invoking the “Ownership” principle to reject a candidate who undervalues the team’s budget constraints.

The judgment: A candidate who pushes compensation beyond the published band signals cultural misfit, not merely financial mis‑expectation. The senior recruiter, Maya Singh, sent an email, “Your expectation exceeds the role’s ceiling; we cannot proceed.” The interview script captured, “If you were to join the Redshift team, how would you align your compensation with the team’s budget?” Alex’s answer, “I’ll take whatever I can get,” resulted in a final No Hire.

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Preparation Checklist

  • Review the Amazon Data Engineer Hiring Rubric (2024 edition) and focus on scalability, cost, and latency metrics.
  • Practice drawing Redshift‑to‑Glue pipelines that handle at least 5 TB of data; include distribution keys and spectrum queries.
  • Memorize the exact wording of the interview question used on March 12 2024: “Design a Redshift‑Glue ETL for daily clickstream data.”
  • Align your compensation expectations with the published range $175,000–$190,000 base for senior DE roles in Q2 2024.
  • Work through a structured preparation system (the PM Interview Playbook covers “Cost‑aware design” with real debrief examples).

Mistakes to Avoid

BAD: “I’ll just copy the table into S3 and let Glue handle everything.” The interview panel called it “Not a deep‑design answer, but a copy‑paste shortcut.” GOOD: “I’ll partition the Redshift table on eventdate, use DISTKEY on userid, and orchestrate three parallel Glue jobs to respect the 10‑minute runtime limit.”

BAD: “My salary expectation is $210,000 base.” The hiring manager wrote, “Not a demand, but a cultural mismatch.” GOOD: “I target $185,000 base, aligning with the published range for Q2 2024 senior DE roles.”

BAD: “I don’t know how to reduce Redshift cost.” The panel noted, “Not a lack of knowledge, but a failure to Earn Trust.” GOOD: “I’d enable column‑level compression and move cold data to Redshift Spectrum to cut storage by 30%.”

FAQ

Does Amazon ever hire a candidate who fails the Redshift scalability question? No. In the Q2 2024 DE loop, every candidate who scored below 4 on the “Scalability” rubric was rejected, regardless of other strengths.

Can I negotiate a higher RSU percent after the offer? No. The July 10 2024 offer capped RSU at 0.06%, and the HC policy disallows post‑offer equity adjustments for senior DE roles.

What is the most common reason for a No Hire after a Redshift‑Glue interview? Not demonstrating cost‑aware design. The June 5 2024 debrief repeatedly cited “Not a cost‑aware answer, but a naïve implementation” as the decisive factor.amazon.com/dp/B0GWWJQ2S3).

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How does Amazon evaluate Redshift architecture in a DE interview?