Interviews Analyzed
3,200
What infrastructure engineers are actually asked in interviews.
Based on 3,200+ real interview reports from infrastructure engineering candidates at top tech companies.
Average Prep Time
12weeks
foundations
deep
system
polish
Offers Landed
72%
Among candidates following the plan
Avg Salary Bump
+$38k
Pre-offer vs post-offer base + equity
We pull jobs from sources most job seekers never check
01 — Companies
What top companies emphasize.
Infrastructure engineering interviews vary significantly by company type, from algorithm-heavy FAANG to operations-focused startups.
FAANG
Very HardGoogle · Meta · Amazon · Apple · Netflix
100%
- Algorithms 45%
- System design 35%
- Behavioral 20%
Heavy emphasis on algorithms and large-scale system design with infrastructure-specific scenarios.
AlgorithmsScale
FINTECH
HardStripe · Square · Coinbase · Robinhood · Plaid
100%
- Algorithms 30%
- System design 45%
- Behavioral 25%
Focus on reliability, compliance, and financial infrastructure with strong system design emphasis.
ReliabilityCompliance
EARLY-STAGE · SERIES A-B
MediumVarious startups · Scale AI · Notion · Linear
100%
- Algorithms 20%
- System design 25%
- Behavioral 25%
- Domain / fit 30%
Practical infrastructure problems with emphasis on operational experience and cultural fit.
OperationsCulture Fit
02 — Topics
Most frequently tested topics
68% of interviews containing topic
01
System Design & Architecture
85%scalability, load balancing, microservices, distributed systems, caching
Designing scalable infrastructure and distributed system architectures
02
Cloud Platforms & Services
78%AWS, GCP, Azure, Kubernetes, Docker
Cloud infrastructure, containerization, and orchestration platforms
03
Monitoring & Observability
72%metrics, logging, alerting, Prometheus, Grafana
Building monitoring systems and implementing observability practices
04
CI/CD & Deployment
65%pipelines, automation, deployment, GitOps, infrastructure as code
Continuous integration, deployment pipelines, and infrastructure automation
05
Networking & Security
58%TCP/IP, DNS, load balancers, firewalls, VPCs
Network protocols, security configurations, and infrastructure hardening
06
Database & Storage
52%databases, replication, sharding, backup, disaster recovery
Database infrastructure, storage systems, and data reliability patterns
03 — Interview loop
Typical interview process
Infrastructure engineering interviews typically include multiple technical rounds with system design being the primary bottleneck for senior candidates.
Pass-rate funnel
Phone Screen · 65%
Coding Round · 58%
System Design · 42%
Infrastructure Deep Dive · 55%
Behavioral · 68%
Offer rate compounded ≈ 1.8%
01
Phone Screen
45 min · pass 65%
Technical screening with coding and infrastructure concepts
02
Coding Round
60 min · pass 58%
Systems-focused coding problems and algorithms
03
System Design
BOTTLENECK60 min · pass 42%
Design scalable infrastructure or monitoring systems
04
Infrastructure Deep Dive
60 min · pass 55%
Technical discussion about past infrastructure projects
05
Behavioral
45 min · pass 68%
Leadership, collaboration, and operational incident scenarios
04 — Question bank
Real questions you'll encounter.
Actual infrastructure engineering interview questions from our database of technical interviews.
SYSTEM DESIGN
Medium → HardDesign monitoring system
- metrics collection
- alerting pipeline
- dashboard architecture
- data retention
CLOUD INFRASTRUCTURE
MediumAuto-scaling architecture
- load balancer config
- scaling policies
- health checks
- deployment strategies
NETWORKING
Medium → HardNetwork troubleshooting
- DNS resolution
- packet routing
- firewall rules
- latency analysis
CODING
MediumRate limiter
- token bucket
- sliding window
- distributed rate limiting
- Redis implementation
CI/CD
Easy → MediumDeployment pipeline
- build automation
- testing stages
- rollback strategy
- blue-green deployment
DATABASE
Medium → HardDatabase scaling
- read replicas
- sharding strategy
- connection pooling
- backup automation
850 questions in the bank
Open the full bank →05 — Prep roadmap
12-week preparation roadmap
Structured preparation plan focusing on infrastructure-specific topics, system design, and hands-on practice with real-world scenarios.
Hours / week
Total: 78 hrs
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12
Weeks 1-3
5 hrs/wk
Infrastructure Fundamentals
Build foundation in networking, cloud platforms, and basic system administration concepts.
NetworkingCloud BasicsLinux
Weeks 4-7
7 hrs/wk
System Design & Architecture
Master designing scalable infrastructure, monitoring systems, and deployment architectures.
System DesignScalabilityArchitecture
Weeks 8-10
8 hrs/wk
Advanced Infrastructure Topics
Deep dive into container orchestration, observability, and infrastructure as code practices.
KubernetesMonitoringIaC
Weeks 11-12
6 hrs/wk
Interview Practice & Polish
Mock interviews, behavioral preparation, and final review of key infrastructure concepts.
Mock InterviewsBehavioralReview
06 — Tools & resources
Tools & resources that work.
Battle-tested by candidates who landed offers.
Mix of free + premium.
InterviewPal
Guided interview prep with mentorship and structured paths.
Best for: Structured prep
Visit InterviewPal
LeetCode
2,000+ coding problems. Premium unlocks company-tagged sets.
Best for: Algorithms & DS
Visit LeetCode
System Design Primer
Free comprehensive guide. The de-facto starting point.
Best for: SD fundamentals
Visit System Design Primer
Blind
Anonymous tech community. Real interview experiences and insights.
Best for: Real signal
Visit Blind
Levels.fyi
Salary and interview data, by company and level.
Best for: Company intel
Visit Levels.fyi
Pramp
Peer mock interviews. Live practice with real people.
Best for: Live practice
Visit PrampFrequently Asked Questions
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