Amazon Senior Data Engineer Interview in Seattle (L6)
Amazon (L6) Senior Data Engineer loop: Leadership Principles woven into every round, with a Bar Raiser holding veto power. Bar at this level: independent technical leadership and cross-team influence. Typical 5-8 years of data engineering experience. This guide covers the Seattle (Seattle / Bellevue, WA) hiring office, including local compensation bands and market context.
Compensation
$170K–$212K base • $285K–$386K total (L6)
Loop duration
4.8 hours onsite
Rounds
6 rounds
Location
Seattle / Bellevue, WA
Compensation
Amazon Senior Data Engineer in Seattle total comp
Offer-report aggregate, 2020-2026. Level mapped: L6. Typical experience: 9-16 years (median 12).
25th percentile
$270K
Median total comp
$360K
75th percentile
$424K
Median base salary
$190K
Median annual equity
$150K
Median total comp by year
21 currently open senior data engineer postings in Seattle.
Round focus
Domain concentration by round
Per-round concentration of each domain in Amazon's interview, derived from the skills emphasized across 21 current senior data engineer postings. Higher bars mean more questions of that type in that round.
Online Assessment
Phone Screen
Onsite Loop
Practice problems
Amazon senior data engineer practice set
Amazon senior data engineer practice set, mapped from predicted domain emphasis. Tap into any problem to work it in the live environment.
The New Arrivals
Given a list, return a list of the same length where position i is the count of distinct values among values[0..i] inclusive.
Content Engagement Data Model
We run a large social content platform. Creators publish posts (text, images, video). Users engage through views, reactions, comments, and shares. The product team needs a data model to power dashboards for content virality, creator performance, and feed ranking signals. Data visualization is also required. Sketch how a virality chart would query this model.
Viewing Event Pipeline
We need to track what our subscribers are watching. This data feeds everything from our recommendation models to operations dashboards that monitor playback quality in real time. Design a data pipeline for our viewing events.
Type Caster
Given a list of values, return a new list where each element is the result of int(value). Any element that raises when cast becomes None instead. Preserve input order.
Classic DE round opener. Window function + partition. Edit to tweak the threshold.
Seattle / Bellevue, WA
Amazon in Seattle
No state income tax. AWS and Azure anchor the DE market, with dense mid-to-senior hiring across Amazon, Microsoft, and their ecosystem.
Offers in Seattle typically trail the reference band by around 8%, reflecting a lower cost of living. Seattle candidates run the same loop as global peers; the differences show up in team assignment and local comp calibration.
The loop
How the interview actually runs
01Recruiter screen
30 minLogistics, team fit, and a light Leadership Principle question. Recruiters confirm seniority expectations before booking the loop. Misalignment here can downlevel the loop.
- →Have a 60-second pitch that names 2-3 concrete data systems you've built
- →Confirm the team. Amazon has hundreds of DE teams across AWS, Retail, Ads, Alexa, Prime Video, Pharmacy
- →Ask about the comp band early to avoid end-of-loop misalignment
02Technical phone screen
60 minOne SQL problem, one Python or pipeline design problem, and 10-15 min of Leadership Principle questions. The SQL is harder than the Online Assessment, expect multi-step window functions or self-joins.
- →Narrate approach before writing code. Amazon grades process, not just the final answer
- →Name the LP before telling the story
- →Prepare at least 2 stories per LP; follow-ups probe a third story on the same theme
03Onsite: SQL deep-dive
60 minTwo to three SQL problems with escalating difficulty, usually in Amazon contexts (seller performance, order fulfillment, inventory). Ends with 10 min of LP questions.
- →Practice window functions across large partition cardinalities
- →Be ready to rewrite correlated subqueries as joins and vice versa
- →When asked about optimization, mention partition pruning and columnar storage
04System design (pipeline architecture)
60 minDesign a production pipeline end-to-end: ingestion, transformation, storage, consumers, SLAs, failure modes, backfill strategy, and cost trade-offs. At senior level, you drive the conversation without prompting. Expect follow-ups about scale, cross-team coordination, and operational load.
- →Anchor on the SLA and data shape before diagramming
- →Discuss idempotency, partitioning, and backfill explicitly
- →Estimate cost: 'This pipeline will cost roughly $X/month at this volume'
05Onsite: Bar Raiser
60 minAn interviewer from outside the hiring team with veto power. Heaviest on Leadership Principles, with one harder technical problem. Tests whether you raise Amazon's hiring bar.
- →Bring a story where you were wrong and had to change course
- →Quantify impact: cost saved, latency reduced, users affected
- →If you don't know something, say so. Fabricating kills the loop faster than any technical gap
Level bar
What Amazon expects at Senior Data Engineer
Independent technical leadership
Senior DEs drive pipeline designs without engineering manager involvement. Interviewers probe whether you can decompose ambiguous requirements, make architecture trade-offs, and defend your choices under scrutiny.
Cross-team coordination
Senior scope regularly spans multiple teams. Expect scenarios about a downstream team missing an SLA because of a change you made, or negotiating a schema migration with the team that owns the upstream source.
Production operational rigor
Fluent in on-call, alerting, data quality checks, and incident response. Dive-deep stories at this level should include correlating a metric drop to a specific commit or a timezone bug or a subtle ordering issue, not 'I looked at the logs.'
Amazon-specific emphasis
Amazon's loop is characterized by: Leadership Principles woven into every round, with a Bar Raiser holding veto power. Calibrate your preparation to that, generic FAANG prep will not close the gap on company-specific expectations.
Behavioral
How Amazon frames behavioral rounds
Dive Deep
The most relevant LP for data engineers. Amazon wants DEs who trace anomalies through 3+ layers of the stack instead of patching symptoms.
Ownership
You built it, you own it, including on-call and long-term maintenance. Ownership extends beyond your explicit scope when dependencies break.
Bias for Action
Speed beats perfection. Amazon wants DEs who ship V1 in 2 weeks rather than a perfect solution in 3 months.
Earn Trust
Trust comes from delivery and transparency. Bar Raisers test whether you can admit mistakes and communicate setbacks without spinning.
Prep timeline
Week-by-week preparation plan
Foundations and gap analysis
- ·Do 10 medium SQL problems. Note which patterns feel slow
- ·Write out 2-3 behavioral stories per value, Amazon weights this round heavily
- ·Read Amazon's public engineering blog for recent architecture patterns
- ·Review your prior production work, pick 3-5 projects you can discuss in depth
SQL and coding fluency
- ·Practice window functions until DENSE_RANK, ROW_NUMBER, LAG, LEAD are reflex
- ·Do 20+ Amazon-style problems in their domain
- ·Time yourself: 25 min per medium, 35 min per hard
- ·Record yourself narrating approach aloud, communication is graded
Pipeline system design
- ·Design 5 pipelines on paper: daily aggregation, clickstream, CDC, ML feature store, real-time alerting
- ·For each, write SLA, partition strategy, backfill plan, and cost estimate
- ·Practice with a friend, senior-level system design is 50% driving the conversation
- ·Review Amazon's open-source and engineering blog for in-house patterns
Behavioral polish and mock loops
- ·Rehearse every story out loud. Cut to 2-3 minutes each
- ·Run 2 full mock loops with a senior DE or coach
- ·Identify your 3 weakest behavioral areas and draft additional stories
- ·Review recent Amazon news or earnings call for fresh talking points
Taper and logistics
- ·No new content. Review your notes only
- ·Sleep. Mental energy matters more than one more practice problem
- ·Confirm logistics: laptop charged, shared-doc tool tested, snack and water nearby
- ·Remember: the loop is rooting for you to raise the bar, not to fail
See also
Related interview guides
FAQ
Common questions
- What level is Senior Data Engineer at Amazon?
- Senior Data Engineer maps to L6 on Amazon's engineering ladder. This is an individual contributor level; expectations focus on independent technical leadership and cross-team influence.
- How much does a Amazon Senior Data Engineer in Seattle make?
- Based on 345 offer samples covering 2020-2026, Amazon Senior Data Engineer in Seattle sees $270K at the 25th percentile, $360K at the median, and $424K at the 75th percentile, median base $190K and median annual equity $150K. Typical experience range: 9-16 years..
- Does Amazon actually hire data engineers in Seattle?
- Yes, Amazon maintains a Seattle office and hires Senior Data Engineer data engineers there. Team assignment may be office-locked or global; confirm with the recruiter before the loop.
- How is the Senior Data Engineer loop different from other levels at Amazon?
- The rounds look similar, but the bar calibrates to seniority. Senior Data Engineer is evaluated on independent technical leadership and cross-team influence. Questions at this level probe independent system design and cross-team influence.
- How long should I prepare for the Amazon Senior Data Engineer interview?
- Plan for 8-10 weeks of prep if you're already a working DE. Under 4 weeks rushes the behavioral prep, which takes the most time.
- Does Amazon interview data engineers differently than software engineers?
- They differ meaningfully. Amazon's DE loop has heavier SQL, replaces the general system-design with a data-specific one (pipelines, warehouse design), and expects production data ops experience.
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