Company interview vault

CrowdStrike Mid-level (3–5 years) Technical deep dive

#2326

How does HashMap work internally in Java? — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Java-specific collections question on buckets, hashing, and resize behavior.

Medium Read answer →

CrowdStrike Mid-level (3–5 years) Technical deep dive

#2327

What is the difference between unit and integration tests? — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Testing strategy question covering pyramid, mocks, and confidence vs speed.

Easy Read answer →

CrowdStrike Mid-level (3–5 years) Technical deep dive

#2328

Explain CI/CD and what a typical pipeline includes — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. DevOps fundamentals for mid-level engineers discussing automation and quality gates.

Medium Read answer →

CrowdStrike Mid-level (3–5 years) Technical deep dive

#2329

When would you choose microservices over a monolith? — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Architecture trade-off question for mid-level backend and platform roles.

Medium Read answer →

CrowdStrike Mid-level (3–5 years) Technical deep dive

#2330

What principles do you follow when designing RESTful APIs? — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. API design question covering resources, HTTP semantics, and versioning.

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CrowdStrike Mid-level (3–5 years) Behavioral

#2331

Tell me about a time you disagreed with a teammate. How did you handle it? — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Behavioral STAR question assessing collaboration and conflict resolution.

Medium Read answer →

CrowdStrike Mid-level (3–5 years) System design

#2332

Design a distributed rate limiter for an API gateway — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. System design testing token bucket, sliding window, and Redis coordination.

Medium Read answer →

CrowdStrike Mid-level (3–5 years) System design

#2333

Design a URL shortening service — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Foundational system design covering APIs, encoding, storage, and read-heavy scaling.

Medium Read answer →

CrowdStrike Mid-level (3–5 years) Coding / DSA

#2334

Explain and implement Dijkstra's algorithm for shortest paths — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Graph algorithm for non-negative edge weights using priority queue.

Hard Read answer →

CrowdStrike Mid-level (3–5 years) Coding / DSA

#2335

Solve the 0/1 knapsack problem with dynamic programming — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Classic DP testing tabulation, space optimization, and item selection reconstruction.

Hard Read answer →

CrowdStrike Mid-level (3–5 years) Coding / DSA

#2336

Design and implement an LRU cache with O(1) get and put — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Hash map plus doubly linked list problem bridging DSA and system components.

Hard Read answer →

CrowdStrike Mid-level (3–5 years) Coding / DSA

#2337

How many distinct ways can you climb n stairs taking 1 or 2 steps at a time? — CrowdStrike interview

Reported in CrowdStrike USA engineering loops. Introductory dynamic programming problem isomorphic to Fibonacci.

Medium Read answer →

Okta Mid-level (3–5 years) System design

#2338

Explain the CAP theorem and what it means for distributed systems — Okta interview

Reported in Okta USA engineering loops. Classic system design question asked at US big-tech and fintech on-site loops.

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Okta Mid-level (3–5 years) Coding / DSA

#2339

How do you perform topological sort on a directed acyclic graph? — Okta interview

Reported in Okta USA engineering loops. Graph algorithm for task scheduling, build systems, and course prerequisites.

Medium Read answer →

Okta Mid-level (3–5 years) Technical deep dive

#2340

What is dependency injection and why is it useful? — Okta interview

Reported in Okta USA engineering loops. Java/Spring staple connecting OOP design to testable service architecture.

Medium Read answer →