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Como se preparar para entrevistas na OpenAI
Reunimos aqui as perguntas públicas já associadas à OpenAI para te ajudar a estudar com mais contexto, entender o tipo de cobrança e priorizar melhor sua preparação.
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24 de 43 perguntas
| Pergunta | Tipo | Nível | Relatos | Último relato |
|---|---|---|---|---|
| Design SlackDesign a messaging platform like Slack that supports real-time messaging through direct messages and channels (public/private), message threads, new message indicators, and persistent message storage. | System Design | Senior | 1 | mar. de 2026 |
| Design Online ChessDesign a real-time chess platform similar to Chess.com that supports gameplay across multiple devices, move validation, matchmaking, leaderboards, and key features like move undo functionality. | System Design | Staff+ | 1 | mar. de 2026 |
| Design a crossword puzzle serviceDesign a crossword puzzle solving service that can efficiently solve large crossword puzzles at scale, handling multiple puzzle requests simultaneously. | System Design | Staff+ | 1 | mar. de 2026 |
| Monster FightImplement a system to simulate combat between monsters with different attributes and abilities. Design the logic to handle turn-based fighting mechanics and determine the winner. | Coding | Senior | 1 | mar. de 2026 |
| Design a credit tracking service for user token balancesDesign a system that tracks user token credits and can efficiently query the number of tokens a user has at any given timestamp. The service should handle credit additions, deductions, and historical balance lookups. | Coding | Senior | 1 | mar. de 2026 |
| Design a devbox systemDesign a cloud-based development environment system that allows developers to create, configure, and manage isolated development containers with pre-installed tools and dependencies. | System Design | Senior | 1 | mar. de 2026 |
| What's your biggest failure | Behavioral | Staff+ | 1 | mar. de 2026 |
| Design ChatGPTDesign a conversational AI system similar to ChatGPT that allows users to have natural language conversations and receive intelligent responses. Focus on a simple version that can handle basic chat functionality for a limited number of users. | System Design | Senior | 1 | mar. de 2026 |
| Design a Payment SystemDesign a payment system that processes transactions through an external payment service for approval/denial, holds approved amounts, and batches all transactions daily for final processing while handling 10,000 transactions per second. | System Design | Senior | 1 | mar. de 2026 |
| IPv4 Address IteratorImplement an iterator that traverses IPv4 addresses starting from a given address, supporting forward iteration, reverse iteration, and CIDR block iteration. | Coding | Senior | 1 | mar. de 2026 |
| Design a prompt playgroundDesign a prompt playground platform that allows users to create, test, and iterate on AI prompts with different models and parameters. | System Design | Senior | 1 | mar. de 2026 |
| KV Store Serialize/DeserializeCode a simple KV with serialize/deserialize functions, where key/value are strings and can contain any character. | Coding | Senior | 1 | fev. de 2026 |
| Design CoderPadDesign a collaborative coding platform similar to CoderPad that allows users to write, edit, and execute code in real-time with features like syntax highlighting, multiple language support, and live collaboration for technical interviews. | System Design | Senior | 1 | fev. de 2026 |
| Authentication ManagerDesign and implement an authentication manager system that can handle user login, logout, and session management operations. The system should validate credentials and maintain active user sessions with appropriate security measures. | Coding | Staff+ | 1 | fev. de 2026 |
| Leetcode 1797. Design Authentication ManagerManage tokens that expire timeToLive seconds after creation/renewal, supporting generate, renew (only if the token is still unexpired), and countUnexpiredTokens (with expirations at time t processed before actions at t). The core challenge is efficiently tracking and removing expired tokens — typically handled with a token->expiry map plus a min-heap/queue for lazy expiration cleanup. | Coding | Staff+ | 1 | fev. de 2026 |
| N- ary treeEach node of the tree represents a real machine in a cluster. Each machine in the cluster can only communicate with its parent and child nodes through "nodeld" using the following two methods: sendAsyncRequest(toNodeId. message) and receiveRequest(fromNodeId, message) . When a request reaches a machine, the receiveRequest method of that machine will be triggered automatically. Suppose root machine (node 1 in the above tree) needs to have the ability to count and print out the total number of machines in the cluster, can you implement the node/machine class and its receiveRequest(fromNodeId, message) method to handle this case? There's no need to implement sendAsyncRequest (toNodeId, message), but you can call this method when needed. | Coding | Senior | 1 | fev. de 2026 |
| Leetcode 271. Encode and Decode StringsDesign a pair of functions to serialize a list of strings into a single string and deserialize it back losslessly, handling arbitrary characters and empty strings so decoding always reproduces the original list. The solution should be stateless, robust to delimiter collisions, and efficient in time/space. | Coding | Mid-level | 1 | fev. de 2026 |
| Disease Spread in Flower GridImplement algorithms to simulate and analyze the spread of disease through flowers arranged in a grid structure. Solve multiple related problems involving infection patterns, timing, and containment strategies. | Coding | Senior | 1 | fev. de 2026 |
| Design Github ActionsDesign a CI/CD platform like GitHub Actions that automatically triggers workflow execution when code is pushed to repositories, with real-time monitoring and observability features. The system should handle 10 million repositories with 10 pushes per second on average, including burst traffic scenarios. | System Design | Senior | 1 | fev. de 2026 |
| Monster GameDesign and implement a monster game system with appropriate data structures and game mechanics. Focus on object-oriented design principles and efficient algorithms for game state management. | Coding | Senior | 1 | jan. de 2026 |
| Why do you want to work at OpenAI? | Behavioral | Senior | 1 | jan. de 2026 |
| In-Memory Database: Implement SQL-Like OperationsBuild an in-memory database that supports basic SQL-like operations including insert, query with WHERE clauses, and ORDER BY functionality. Implement efficient data storage structures, query parsing for condition evaluation, and inverted indexes to optimize search performance. | Coding | Senior | 1 | jan. de 2026 |
| Design a Metrics AggregatorDesign a metrics aggregation system that collects count-based metrics (like user signups, system errors, ad clicks) from services via a client library and displays them as histogram data on a dashboard. The system should support querying aggregated metrics within specific time frames for monitoring and analytics purposes. | System Design | Senior | 1 | dez. de 2025 |
| Advent of Code Day 7 VariationSolve a modified version of Advent of Code Day 7 problem. Implement an algorithm to handle the specific requirements and constraints of this coding challenge. | Coding | Senior | 1 | dez. de 2025 |
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