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Deloitte Cloud Architect Interview Guide

Published July 22, 2026 · Updated July 22, 2026

Evidence-backed preparation playbook for Deloitte Cloud Architect interviews. 3 reported questions, top topics, difficulty breakdown, and a free assessment.

3
Questions reported
Medium–Hard
Difficulty
5–8 Years
Most reported exp
2
Interview rounds
Rounds reported
Technical 2qSystem Design 1q
Topics most frequently reported
✓AWS / Serverless ETL 1 question · 33%
✓AWS / Cost Optimization 1 question · 33%
✓DevOps / Infrastructure as Code 1 question · 33%
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Top Questions — Ranked by Community Votes

These 3 questions appeared most in Deloitte Cloud Architect reports. Master these first.

Deloitte Hard System Design round 5–8 YearsAWS

Design a serverless ETL pipeline on AWS that processes files uploaded to S3 and loads them into Redshift.

↑ 127 upvotes · 100 engineers asked this · Cloud Architect
Deloitte Medium Technical round 3-7 yearsAWS

A client's AWS bill has grown 40% in 6 months with no corresponding growth in usage. What are the first three things you would check?

↑ 20 upvotes · 11 engineers asked this · Cloud Architect
Deloitte Medium Technical round 2-6 yearsTerraform

Why do most teams prefer Terraform over manually configuring cloud infrastructure through the console, even for a small project? Name a concrete risk manual configuration introduces.

↑ 17 upvotes · 7 engineers asked this · Cloud Architect

More at Deloitte

All Deloitte questions Deloitte interview process

Frequently asked questions

How hard is the Deloitte Cloud Architect interview?
Medium–Hard difficulty based on 3 reported questions. Most questions cover AWS / Serverless ETL, AWS / Cost Optimization, DevOps / Infrastructure as Code.
What topics does Deloitte ask Cloud Architects?
Top reported topics: AWS / Serverless ETL (1 questions), AWS / Cost Optimization (1 questions), DevOps / Infrastructure as Code (1 questions).
How many rounds does Deloitte have for Cloud Architect?
Reported rounds: System Design, Technical.
What experience level does Deloitte hire Cloud Architects at?
Most reported: 5–8 Years and 3-7 years.