This guide draws on 22 first-hand interview accounts from Nowcoder. Candidates describe about 1 round on average, most often technical interviews, an online assessment and a take-home task.
These 22 writeups cover data, operations, software engineering roles. All of them were posted under a forum handle, so we could not verify the authors’ identities.
New grad. 1 round. Shared by Code_Agent on nowcoder, 1970-01-01
1First roundTechnicalCampus first round centered on designing and operating LLM agent systems in production.Covered: Agent interface contracts, Shipping AI-generated code, Context management for AI coding, Agent system decomposition, Task recovery after worker crash, Agent memory design, Testing with a fake LLM
1First roundTechnicalInternship discussion, Java and Spring transaction questions, an e-commerce payment flow, then a sliding-window coding problem.Covered: Internship workflow, Isolation levels and phantom reads, volatile vs synchronized, Order payment and inventory, Spring transactions, Minimum window substring
AI Backend Engineer (grocery retail)
Not selected
New grad. 2 rounds. Shared by 炒肉多 on nowcoder, 2026-10-01
1First roundTechnicalLong walkthrough of internship agent work plus database questions and a delivery-routing coding task.Covered: Internship agent platform, Java-Python service communication, SSE streaming, Slow SQL tuning, Agent skill design, AI coding tools, Order batching and route greedy algorithm
2Second roundTechnicalAlmost two hours covering project metrics, middleware failure modes, a code review, an AI-coding UI task and a heap/QuickSelect problem.Covered: Agent pipeline design, Distributed locks and caching, Redis deployment, Traffic spikes, Token bucket rate limiting, RocketMQ consumer review, MySQL indexes and EXPLAIN, AI-built order page, Top-K smallest elements
AI Full-Stack Engineer
Outcome not shared
unknown. 2 rounds. Shared by AIGC小白入门记 on nowcoder, 1970-01-01
1AI coding taskTake-homeA two-hour AI-assisted build of a weekly-report system. Unfinished but judged mainly on approach.Covered: Weekly report automation system
2First roundTechnicalFriendly video interview with probing follow-ups on the RAG pipeline and deployment design.Covered: Chunking Markdown without headings, Comparing short queries with long chunks, CI/CD pipeline design, Atomic switchover, Task queues
AI Agent Engineer
Outcome not shared
New grad. 1 round. Shared by 会收到的打工人 on nowcoder, 2026-09-15
1First roundTechnicalLong discussion of an agent project, AI in daily work, transaction systems and stability, plus questions on motivation. Advanced to the second round.Covered: Agent project design, Hallucination control and confidence checks, Context growth in multi-agent systems, LangChain vs LangGraph vs hand-written agents, Knowledge base freshness, Payment flow design, Online stability, AI-assisted development process
AI Backend Engineer
Not selected
New grad. 1 round. Shared by 纯牛马🐮🐴 on nowcoder, 2026-09-15
1First roundTechnicalWalkthrough of a prior AI design task and internships, caching and MySQL questions, then an integer-reversal and a SQL coding task.Covered: AI design take-home walkthrough, Model evaluation with Elo, Agent context compression, Redis caching choices, Cache refresh, MySQL isolation and joins, Integer reversal with overflow, SQL query
Role not stated
Outcome not shared
New grad. 1 round. Shared by kong123456 on nowcoder, 2026-09-15
1Written testOnline assessmentTen multiple-choice questions mostly about AI, one O(n) simulation coding problem and an AI-assisted coding section.Covered: AI multiple choice, Bouncing car simulation, AI coding task
Embedded Systems Software Engineer
Outcome not shared
New grad. 1 round. Shared by 27勇闯秋招ggbong on nowcoder, 2026-09-16
1Written testOnline assessmentTwenty embedded-focused multiple-choice questions and two coding problems, with no AI coding section.Covered: uC/OS tasks, STM32 reset, vi commands, fopen, C output, DMA and ADC, Linux, Count valid empty seats, Forklift collision simulation
Role not stated
Outcome not shared
New grad. 1 round. Shared by 启明_不想秋招版 on nowcoder, 2026-09-16
1First roundTechnical73-minute round heavily critiquing an AI coding workflow, followed by backend fundamentals and a linked-list coding task.Covered: Live-stream project and event tracking, Agent workflow error propagation, Code review of AI output, Spec-driven tooling, MySQL isolation and slow queries, Thread pools, MQ idempotency, Redis atomicity and Lua, Spring transactions, Reverse linked list between positions
AI Backend Engineer
Outcome not shared
New grad. 1 round. Shared by Osborange on nowcoder, 2026-09-18
1First roundTechnicalRoughly 80-minute round with a friendly, low-pressure interviewer. No follow-up after several days.
AI data engineer
Outcome not shared
New grad. 1 round. Shared by AAA野生原子弹批发 on nowcoder, 2026-09-23
1First interviewTechnicalData engineering and internship AI-adoption questions plus lakehouse fundamentals and a small agent skill task.Covered: Data warehouse subject areas, Release validation thresholds, Data skew detection and salting, Spark stage diagnosis, Circuit breaking vs alerting, Hudi and LSM trees, Agent bad-case classification, Hallucination reduction, Iceberg metadata and copy-on-write
AI full-stack engineer
Outcome not shared
New grad. 2 rounds. Shared by 零零幺零零幺 on nowcoder, 2026-09-23
1AI coding take-homeTake-homeTimed AI-assisted build before the interview that the candidate could not fully finish.Covered: Two-hour system build on internal AI coding platform
2Second interviewTechnicalForty-five minutes reviewing the take-home and discussing AI-assisted full-stack work.Covered: Core tables, test cases and state machine of the take-home, AI conversation walkthrough, Internship highlights, AI for frontend vs client, Multi-agent collaboration framework, Location intent
Autonomous driving algorithm engineer
Outcome not shared
New grad, Beijing or Shenzhen. 1 round. Shared by 可恶_别小看我和AI的羁绊啊 on nowcoder, 2026-09-29
1First interviewTechnicalA fifty-five-minute round grilling the internship and RL research, with one coding problem and questions on AI-assisted coding.Covered: Customer-feedback LLM classification internship, Accuracy definitions and label noise, Building high-quality fine-tuning data, Learning sources and ZeRO memory optimization, Reinforcement learning projects with graph and cross attention, Reward design and auxiliary rewards, Evaluation metrics, Maximum drop in an array, AI coding workflow and context loss
Autonomous driving algorithm engineer
Outcome not shared
New grad, Beijing or Shenzhen. 1 round. Shared by 可恶_别小看我和AI的羁绊啊 on nowcoder, 2026-09-29
1Second interviewTechnicalA thirty-minute round on internship data work plus a classic coding problem and a debugging exercise.Covered: Data pipeline cleaning and sample feedback, What makes an SFT dataset high quality, Matching real data distributions, Reasoning supervision from expert rules, Designing a cost function, Merge intervals, Debugging a provided Python snippet
Logistics Operations
Outcome not shared
New grad. 1 round. Shared by 愿offer多多666 on nowcoder, 2026-10-08
1First roundHiring managerOne-on-one business interview that probed the internship, asked how to make routine work more efficient, then described the role in detail.Covered: Internship deep dive, Optimizing standardized tasks, Role overview
Backend Developer
Outcome not shared
New grad. 1 round. Shared by AIGC小白入门记 on nowcoder, 1970-01-01
1Written test and interviews (combined)TechnicalThe author merges the written test and first two rounds into one list of design and coding questions with brief approaches.Covered: Merging multi-device shopping carts, Top-K cities by order amount, Approaching an AI coding task, First non-repeating character in one pass, Token bucket vs leaky bucket, Protecting hot cache keys
AI Application Developer
Outcome not shared
New grad. 1 round. Shared by AIGC小白入门记 on nowcoder, 1970-01-01
1First roundTechnicalAn intense round on agent platform design, planning strategies and tool-call robustness.Covered: Internship agent platform architecture, API vs IM integration, Clarifying questions, End-to-end Q&A pipeline, Intent recognition tree, ReAct vs Plan-and-Execute, Replanning design and limits, Large planner with small executor, Tool timeouts, retries and idempotency, Parsing malformed tool output
Backend Developer
Outcome not shared
New grad. 1 round. Shared by 同尘去 on nowcoder, 1970-01-01
1First roundTechnicalA long, exhausting round spanning two projects, Java internals, OS, networking, MySQL and Redis, ending with a coding problem.Covered: Data-analysis agent internship: MCP, intent recognition, skills, Analyzing a production dump, Recruiting assistant project: channels, scraping and anti-bot, Prompt vs context engineering, Agent architectures and ReAct limits, Recovering from bad plans, Sorting custom objects and lambdas, synchronized on static vs instance methods and lock storage, Dynamic dispatch, execute vs submit, volatile implementation, Strategy vs template method, Memory overcommit, System call flow and context saving, Lost final FIN ACK, Reliable transport over UDP, InnoDB logs and commit ordering, Redis eviction, LRU vs LFU, Container with most water
AI Full-Stack Engineer
Outcome not shared
New grad. 1 round. Shared by 零零幺零零幺 on nowcoder, 2026-09-18
1First roundTechnical50-minute friendly round opening with a coding problem, then internship, database and project questions. Feedback was positive.Covered: Merge intervals, Internship work and performance optimization, Large data export optimization, MySQL index structure and clustered indexes, Index failure handling, RAG pipeline and tree intent recognition, Sharding and aggregate queries, Token bucket rate limiting, Following AI developments
Software Engineer
Outcome not shared
New grad. 1 round. Shared by 又在摸鱼的亚瑟很想去三亚看海 on nowcoder, 2026-09-19
1Written testOnline assessmentTen multiple-choice questions, one hard number theory coding problem and an AI coding task with a weak model.Covered: Operating systems, LLM engineering and principles, Minimizing LCM to GCD ratio, AI coding task
Role not stated
Outcome not shared
New grad. 1 round. Shared by 魔仙堡的小莫仙w on nowcoder, 2026-09-19
1Written testOnline assessmentTen AI-heavy multiple-choice questions, one number theory coding problem and an AI coding task.Covered: Multi-agent shared facts, Transformer-XL long context, Memory partition allocation, Low-resource translation, ZeRO-3 OOM, KMP and binary search comparisons, RLHF and PPO, Subnet calculation, ViT, Maximum divisor count of pairwise products, AI coding task
Full-Stack Developer
Outcome not shared
New grad. 1 round. Shared by 就爱吃点拼好饭 on nowcoder, 2026-09-19
1Written testOnline assessmentTen multiple-choice questions, a skipped coding problem and an AI coding task stuck on four failing cases.Covered: Multiple choice, Reachability within k steps on a grid, AI coding task
This guide draws on 22 first-hand interview accounts from Nowcoder. Candidates describe about 1 round on average, most often technical interviews, an online assessment and a take-home task.
What topics does Meituan test in interviews?
Commonly reported topics include AI coding task, Spring transactions, Token bucket rate limiting, Merge intervals, Agent interface contracts, Shipping AI-generated code.
These guides summarize public, first-hand interview experiences shared by candidates. They describe the shape of each loop and the topics that came up, not a leaked question bank, and every experience links back to its original source. Processes change often. Treat this as directional prep, not a script.
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