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Meta Staff Site Reliability Engineer Interview Preparation Guide

Site Reliability Engineer (SRE)
Meta
Staff
8 rounds
Updated 6/21/2026

While search results confirm that Meta (Facebook) conducts SRE interviews, comprehensive company-specific interview process details were not available in the search results. This guide is based on industry-standard practices for Staff-level SRE positions at leading tech companies, adapted to Meta's technology stack and known requirements. The interview structure, round types, and evaluation criteria reflect typical patterns for Staff-level technical interviews in the SRE domain. For the most current and detailed information about Meta's specific interview process, candidates should consult Meta's official careers page.

Meta's Staff Site Reliability Engineer interview process is a rigorous, multi-round evaluation designed to assess technical depth, systems thinking, incident response capability, and leadership potential. The process combines technical depth assessment through systems design and distributed systems interviews, infrastructure expertise evaluation through practical scenarios, and behavioral evaluation focused on cross-functional impact and mentorship. Staff-level candidates are evaluated on their ability to architect large-scale reliable systems, lead technical initiatives across teams, and mentor senior engineers while demonstrating Meta values of moving fast and building impact.

Interview Rounds

1

Recruiter Screening

2

Technical Phone Screen 1: Infrastructure & Systems Knowledge

3

Technical Phone Screen 2: Incident Response & Troubleshooting

4

Onsite Round 1: Systems Design Interview

5

Onsite Round 2: Distributed Systems & Architecture

6

Onsite Round 3: Coding Interview (Systems-Focused)

7

Onsite Round 4: Infrastructure Automation & Tooling

8

Onsite Round 5: Behavioral & Leadership Interview

Frequently Asked Site Reliability Engineer (SRE) Interview Questions

Deployment and Release StrategiesHardTechnical
81 practiced
You need to schedule a rollout across interdependent microservices based on a dependency graph. Describe an algorithm to compute safe batches of services to deploy in parallel, handling cycles and optional parallelism while minimizing total rollout time and ensuring compatibility constraints.
Failure Detection and Automated ResponseEasyTechnical
89 practiced
Compare active (synthetic/blackbox) monitoring vs passive (instrumentation/whitebox) monitoring. Provide concrete examples of signals each provides, strengths and weaknesses, and when you'd choose one over the other for detecting failures across a global e-commerce stack (CDN, API gateway, backend services). Discuss cadence, cost, and blind spots.
Automation and ScriptingEasyTechnical
73 practiced
Describe a practical testing strategy for automation scripts: how you would structure unit tests, integration tests, use mocks and fixtures, test idempotency and side effects, and run these tests in CI. Include considerations for flaky tests and running tests that require cloud resources.
Capacity Planning and Resource OptimizationMediumTechnical
37 practiced
Write (or describe) a Python function propose_instances(timeseries_cpu_percent, per_instance_cpu_capacity_percent, target_p95_util_percent) that, given CPU utilization samples for existing instances over time, proposes the number of identical instances needed to keep p95 utilization below the target. Assume adding instances divides utilization proportionally. Explain handling of missing values and rounding.
Container Orchestration and Kubernetes OperationsEasyTechnical
54 practiced
Describe taints and tolerations in Kubernetes. Provide a clear example of tainting a node to accept only spot-instance tolerant workloads and explain how you would ensure critical control plane or monitoring pods still run on that node when necessary.
Blameless Postmortem and Organizational LearningMediumTechnical
54 practiced
Write a concise three-paragraph executive summary of this hypothetical outage: 'An authentication-service outage after a schema migration caused a two-hour downtime affecting 30% of API traffic and estimated $50k revenue impact that day.' Include prioritized corrective actions with estimated timelines suitable for C-suite consumption.
Deployment and Release StrategiesMediumSystem Design
98 practiced
Design a CI/CD pipeline for a multi-service monorepo that supports feature branches, automated tests, artifact promotion, gated deployments, and emergency rollback. Specify how you would store artifacts, ensure reproducible builds, and support both scheduled and on-demand canary rollouts.
Failure Detection and Automated ResponseEasyTechnical
73 practiced
Explain the difference between liveness and readiness probes in Kubernetes. As an SRE, how would you design and implement both for a stateless HTTP microservice that depends on a downstream cache and database? Include what each probe should check, failure modes to consider, appropriate HTTP status codes, and how Kubernetes reacts to probe failures. Also describe strategies for dependency degradation without restarting the pod.
Automation and ScriptingEasyTechnical
83 practiced
Explain GitOps and describe how operational automation and scripts should be integrated into a GitOps model. Cover repository layout for automation manifests, how automation triggers from repo changes, policy enforcement, and how to handle emergency manual changes safely.
Capacity Planning and Resource OptimizationHardTechnical
22 practiced
Explain how buffer pool sizing in an OLTP database affects read latency and IO amplification when the working set is slightly larger than available RAM. Using cache-miss curves and cost modeling, propose a method to choose buffer size that minimizes total cost (memory cost + IO cost), and describe experiments to measure the 'knee' in the hit-rate curve.
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