Company interview vault

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

#2686

What principles do you follow when designing RESTful APIs? — X (Twitter) interview

Reported in X (Twitter) USA engineering loops. API design question covering resources, HTTP semantics, and versioning.

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X (Twitter) Mid-level (3–5 years) Behavioral

#2687

Tell me about a time you disagreed with a teammate. How did you handle it? — X (Twitter) interview

Reported in X (Twitter) USA engineering loops. Behavioral STAR question assessing collaboration and conflict resolution.

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X (Twitter) Mid-level (3–5 years) System design

#2688

Design a distributed rate limiter for an API gateway — X (Twitter) interview

Reported in X (Twitter) USA engineering loops. System design testing token bucket, sliding window, and Redis coordination.

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X (Twitter) Mid-level (3–5 years) System design

#2689

Design a URL shortening service — X (Twitter) interview

Reported in X (Twitter) USA engineering loops. Foundational system design covering APIs, encoding, storage, and read-heavy scaling.

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

#2690

Explain and implement Dijkstra's algorithm for shortest paths — X (Twitter) interview

Reported in X (Twitter) USA engineering loops. Graph algorithm for non-negative edge weights using priority queue.

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

#2691

Solve the 0/1 knapsack problem with dynamic programming — X (Twitter) interview

Reported in X (Twitter) USA engineering loops. Classic DP testing tabulation, space optimization, and item selection reconstruction.

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

#2692

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

Reported in X (Twitter) USA engineering loops. Hash map plus doubly linked list problem bridging DSA and system components.

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

#2693

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

Reported in X (Twitter) USA engineering loops. Introductory dynamic programming problem isomorphic to Fibonacci.

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

#2694

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

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

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

#2695

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

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

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

#2696

How do you version a public API without breaking clients? — Tesla interview

Reported in Tesla USA engineering loops. API evolution question covering compatibility, deprecation, and communication.

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Tesla Mid-level (3–5 years) Behavioral

#2697

Tell me about a project that failed or missed its deadline. What did you learn? — Tesla interview

Reported in Tesla USA engineering loops. Behavioral question testing accountability, retrospectives, and growth.

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

#2698

Compare ACID and BASE consistency models in databases — Tesla interview

Reported in Tesla USA engineering loops. Distributed data question bridging SQL transactions and NoSQL eventual consistency.

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

#2699

How does Node.js handle concurrent requests with a single thread? — Tesla interview

Reported in Tesla USA engineering loops. Node.js architecture question on libuv, event loop phases, and worker threads.

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

#2700

When would you use useState versus useReducer in React? — Tesla interview

Reported in Tesla USA engineering loops. React hooks question on local state complexity and predictable updates.

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