The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Backend Engineer
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Behavioral
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medium
Tell me about a time you disagreed with a senior engineer or architect on a system design choice. How did you resolve it?
#Conflict Resolution
#Communication
Backend Engineer
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Behavioral
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medium
Describe a time you had to deliver a critical backend feature under a very tight deadline. Did you have to cut corners, and if so, how did you manage the technical debt?
#Time Management
#Technical Debt
#Prioritization
Backend Engineer
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Behavioral
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medium
Adobe values being 'Genuine'. Tell me about a time you made a significant mistake in production. How did you handle it and what did you learn?
#Accountability
#Incident Management
Backend Engineer
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Behavioral
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easy
How do you ensure your code is maintainable and scalable when working in a large distributed team, like the ones building Adobe Creative Cloud?
#Clean Code
#Testing
#CI/CD
Backend Engineer
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Behavioral
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medium
Tell me about a time you identified a major bottleneck or security flaw in a production system proactively. What steps did you take to resolve it?
#Proactivity
#System Optimization
#Security
Backend Engineer
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Behavioral
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easy
How do you approach mentoring junior engineers? Give an example of a time you helped a teammate level up their technical skills.
#Mentorship
#Team Building
Backend Engineer
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Behavioral
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medium
Tell me about a time you had a strong disagreement with a Product Manager or a peer regarding a technical decision. How did you resolve it?
#Conflict Resolution
#Communication
#Collaboration
Backend Engineer
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Behavioral
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medium
Adobe's core value is 'Own the Outcome'. Describe a project where you took full ownership from inception to deployment. What challenges did you face?
#Ownership
#Project Management
#Accountability
Backend Engineer
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Behavioral
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medium
Tell me about a time you had to balance technical debt with delivering a feature on a tight deadline. How did you manage it?
#Technical Debt
#Time Management
#Prioritization
Backend Engineer
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Behavioral
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medium
Tell me about a time you identified a performance bottleneck in a production system. How did you find it, and what steps did you take to resolve it?
#Debugging
#Performance Optimization
#Monitoring
Backend Engineer
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Behavioral
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easy
Describe a time you mentored a junior engineer or helped level up your team's engineering practices. What was the outcome?
#Mentorship
#Team Building
#Code Review
Backend Engineer
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Coding
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medium
Design a data structure that implements an LRU (Least Recently Used) Cache. It should support get and put operations in O(1) time complexity. How would you adapt this for caching user session data in Adobe Experience Manager?
#Hash Map
#Doubly Linked List
#Caching
Backend Engineer
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Coding
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medium
Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals. This is often used in Adobe Premiere Pro's backend to calculate total rendered video time on a timeline.
#Arrays
#Sorting
Backend Engineer
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Coding
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medium
Given a string s and a dictionary of strings wordDict, return true if s can be segmented into a space-separated sequence of one or more dictionary words. Consider this in the context of Adobe Acrobat's OCR text extraction.
#Dynamic Programming
#Trie
#Strings
Backend Engineer
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Coding
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hard
Write a function to serialize and deserialize a binary tree. This is similar to how we might serialize a complex DOM tree in Adobe XD for network transmission.
#Trees
#BFS
#DFS
#Serialization
Backend Engineer
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Coding
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medium
Given a 2D grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically.
#Graphs
#DFS
#BFS
Backend Engineer
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Coding
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hard
Given an array of non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining.
#Arrays
#Two Pointers
#Dynamic Programming
Backend Engineer
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Coding
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hard
Design an in-memory file system. Implement commands like ls, mkdir, addContentToFile, and readContentFromFile. This mimics the backend structure of Adobe Cloud storage.
#Trie
#Hash Map
#Object Oriented Design
Backend Engineer
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Coding
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easy
Given a stream of integers, design a class to find the kth largest element in the stream.
#Heap
#Priority Queue
#Data Streams
Backend Engineer
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Coding
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hard
Given two strings s and t, return the minimum window in s which will contain all the characters in t. If there is no such window, return an empty string.
#Sliding Window
#Hash Map
#Strings
Backend Engineer
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Coding
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easy
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution.
#Arrays
#Hash Map
Backend Engineer
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Coding
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hard
Given a binary tree, find the maximum path sum. The path may start and end at any node in the tree.
#Trees
#DFS
#Dynamic Programming
Backend Engineer
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Coding
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medium
Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. How would you implement this to be thread-safe for a high-throughput backend service?
#Hash Table
#Doubly Linked List
#Concurrency
Backend Engineer
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Coding
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medium
Given an array of intervals representing page ranges to extract from a PDF in Adobe Document Cloud, merge all overlapping intervals and return an array of the non-overlapping intervals.
#Arrays
#Sorting
Backend Engineer
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Coding
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medium
Given an integer array of event IDs from Adobe Analytics and an integer k, return the k most frequent elements. You must solve it in better than O(n log n) time complexity.
#Heap
#Hash Table
#Bucket Sort
Backend Engineer
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Coding
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medium
Given a string representing a user's search query on Adobe Stock and a dictionary of valid tags, return true if the string can be segmented into a space-separated sequence of dictionary words.
#Dynamic Programming
#Trie
#Memoization
Backend Engineer
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Coding
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medium
There are a total of numAssets you have to load for an Adobe Premiere Pro project, labeled from 0 to numAssets - 1. You are given an array prerequisites where prerequisites[i] = [a, b] indicates that you must load asset b first if you want to load asset a. Return true if you can finish loading all assets.
#Graph
#Topological Sort
#BFS
#DFS
Backend Engineer
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Coding
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hard
Given an elevation map where the width of each bar is 1, compute how much water it can trap after raining. This is used in our image processing algorithms for histogram analysis.
#Two Pointers
#Dynamic Programming
#Stack
Backend Engineer
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Coding
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hard
Design a multithreaded web crawler to scrape asset metadata from external partner sites. How do you ensure you don't process the same URL twice and respect domain rate limits?
#Concurrency
#Graph Traversal
#Thread Pool
Backend Engineer
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Coding
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hard
Given a sorted dictionary of an alien language, find the order of characters in the language. Return a string of the unique letters sorted in lexicographical order by the rules of this new language.
#Graph
#Topological Sort
#String
Backend Engineer
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Coding
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hard
Given two strings s and t, return the minimum window in s which will contain all the characters in t. If there is no such window, return the empty string.
#Sliding Window
#Hash Table
#Strings
Backend Engineer
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Coding
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hard
Serialize and Deserialize a Binary Tree. Design an algorithm to convert a binary tree into a string and back into the identical tree structure.
#Trees
#DFS
#BFS
#Design
Backend Engineer
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System Design
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hard
Design a system like Adobe Creative Cloud file synchronization. How would you handle syncing large files (e.g., 10GB PSD files) efficiently across multiple devices without consuming excessive bandwidth?
#Distributed Systems
#Chunking
#Delta Sync
#Concurrency
Backend Engineer
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System Design
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medium
Design the backend architecture for Adobe Sign (e-signature workflow). How do you ensure the document state is consistent and legally binding when multiple parties are signing concurrently?
#State Machines
#Database Transactions
#Event Sourcing
Backend Engineer
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System Design
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hard
Design a Rate Limiter for Adobe's API Gateway. It needs to handle millions of requests per second across globally distributed data centers.
#API Gateway
#Redis
#Token Bucket
#Distributed Systems
Backend Engineer
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System Design
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medium
How would you design a highly available, distributed cache for Adobe Experience Manager (AEM) to serve static and dynamic web assets?
#Caching
#CDNs
#Consistency
Backend Engineer
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System Design
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hard
Design a real-time collaborative PDF editing backend (similar to Google Docs, but for Acrobat Web). How do you handle concurrent edits from multiple users?
#WebSockets
#Operational Transformation
#CRDTs
Backend Engineer
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System Design
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medium
Design an async image processing queue for Adobe Photoshop Express. Users upload images, apply filters, and download the result. The system must scale during traffic spikes.
#Message Queues
#Asynchronous Processing
#Auto-scaling
Backend Engineer
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System Design
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medium
Design a notification system for Adobe Behance that alerts users when their portfolio receives a like, comment, or when someone they follow posts new work.
#Pub/Sub
#Push Notifications
#Database Design
Backend Engineer
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System Design
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easy
Design a URL Shortener for Adobe Campaign to track click-through rates on marketing emails. The system must handle billions of URLs and provide analytics.
#Base62 Encoding
#Database Sharding
#Analytics
Backend Engineer
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System Design
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medium
Design a Leaderboard system for Adobe Behance daily challenges. It needs to display the top 100 users globally and a user's specific rank in real-time.
#Redis
#Sorted Sets
#Real-time Systems
Backend Engineer
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System Design
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hard
Design the data ingestion pipeline for Adobe Analytics. The system receives billions of tracking events per day from websites globally. How do you ensure no data is lost?
#Big Data
#Kafka
#Data Ingestion
#Fault Tolerance
Backend Engineer
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System Design
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medium
We are migrating a legacy monolithic Adobe application to microservices. What are the primary challenges you would anticipate, and how would you handle database decomposition?
#Microservices
#Migration
#Database Design
Backend Engineer
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System Design
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hard
Design a system like Adobe Creative Cloud File Sync. Users should be able to upload, download, and sync files across multiple devices seamlessly.
#Distributed Systems
#Chunking
#Conflict Resolution
#WebSockets
Backend Engineer
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System Design
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hard
Design the backend for a real-time collaborative editing tool similar to Adobe Express or Figma. Multiple users can edit the same canvas simultaneously.
#Operational Transformation
#CRDTs
#WebSockets
#Concurrency
Backend Engineer
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System Design
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hard
Design a high-throughput data ingestion pipeline for Adobe Analytics that can handle millions of events per second from global clients without data loss.
#Kafka
#Stream Processing
#Data Partitioning
#High Availability
Backend Engineer
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System Design
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medium
Design a distributed PDF generation service for Adobe Document Cloud. The service receives HTML/Images and converts them to PDF. The process is CPU intensive and can take anywhere from 1 second to 5 minutes.
#Asynchronous Processing
#Message Queues
#Auto-scaling
#Blob Storage
Backend Engineer
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System Design
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medium
Design an API Rate Limiter for Adobe's API Gateway to prevent abuse and enforce tier-based subscription limits (e.g., Free vs Premium users).
#Redis
#Token Bucket
#Sliding Window
#Distributed Caching
Backend Engineer
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System Design
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medium
Design a system to generate and serve personalized feeds for Adobe Behance users. The feed should include projects from followed creators and recommended content.
#Fan-out
#Caching
#Recommendation Systems
Backend Engineer
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System Design
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hard
Design a distributed lock mechanism. What technologies would you use, and how do you handle the case where the client holding the lock crashes?
#Distributed Systems
#Redis
#Zookeeper
#Concurrency
Backend Engineer
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System Design
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medium
Design an asset search system for Adobe Experience Manager (AEM). Users can search millions of images/documents by metadata, tags, and text content with sub-second latency.
#Elasticsearch
#Inverted Index
#Data Synchronization
Backend Engineer
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System Design
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medium
Design a notification system that alerts Creative Cloud users when a collaborator comments on their shared file. It must support email, SMS, and in-app push notifications.
#Pub/Sub
#Microservices
#Third-party Integration
Backend Engineer
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System Design
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hard
Design a globally distributed Leaderboard system for an Adobe-sponsored design contest. Millions of users are voting, and the top 100 designs must be displayed in real-time.
#Redis Sorted Sets
#Data Partitioning
#Eventual Consistency
Backend Engineer
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Technical
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medium
In Java, how does the Garbage Collector work, and how would you tune it for a high-throughput, low-latency backend service processing Adobe Analytics data streams?
#Java
#JVM
#Garbage Collection
#Performance Tuning
Backend Engineer
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Technical
•
medium
Explain the CAP theorem. How does it apply to the design of Adobe Experience Platform's real-time customer profile database?
#CAP Theorem
#NoSQL
#Eventual Consistency
Backend Engineer
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Technical
•
hard
How does Apache Kafka ensure exactly-once processing semantics, and how would you configure it for a billing event pipeline in Adobe Creative Cloud subscriptions?
#Kafka
#Streaming
#Idempotence
Backend Engineer
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Technical
•
medium
You have a slow SQL query that is timing out when fetching a user's asset metadata from a PostgreSQL database with 100 million rows. Walk me through your debugging and optimization steps.
#Database Optimization
#Indexing
#Query Execution Plan
Backend Engineer
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Technical
•
medium
Explain the differences between Optimistic and Pessimistic locking. Which would you use for updating user profile settings vs updating a shared collaborative document?
#Concurrency
#Locking
#Databases
Backend Engineer
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Technical
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medium
Explain how OAuth 2.0 works. How would you implement it to allow third-party applications to access a user's Adobe Creative Cloud files securely?
#OAuth2
#Authentication
#Authorization
#JWT
Backend Engineer
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Technical
•
easy
Design a RESTful API for managing user subscriptions for Adobe Creative Cloud. What endpoints, HTTP methods, and status codes would you use?
#REST
#HTTP
#API Design
Backend Engineer
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Technical
•
medium
Explain the internal workings of a HashMap in Java. How does it handle collisions, and what changes were introduced in Java 8 to improve performance?
#Data Structures
#Hashing
#Java Internals
Backend Engineer
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Technical
•
hard
How does Garbage Collection work in Java? Describe the differences between G1 GC and ZGC, and how you would tune them for a low-latency microservice.
#Garbage Collection
#JVM Tuning
#Memory Management
Backend Engineer
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Technical
•
hard
In a microservices architecture, how do you handle distributed transactions across multiple services? For example, billing a user and provisioning an Adobe Creative Cloud license.
#Microservices
#Saga Pattern
#Eventual Consistency
#Two-Phase Commit
Backend Engineer
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Technical
•
medium
You notice a specific SQL query in your PostgreSQL database is taking 5 seconds to execute, causing API timeouts. Walk me through your exact steps to debug and optimize it.
#Database Optimization
#Indexing
#EXPLAIN ANALYZE
Backend Engineer
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Technical
•
medium
Explain how Kafka ensures high availability and fault tolerance. What happens if a broker goes down while a producer is sending messages?
#Kafka
#Replication
#Leader Election
Backend Engineer
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Technical
•
medium
How do you design an idempotent REST API? Give a concrete example of how you would implement this for a payment processing endpoint.
#REST
#Idempotency
#HTTP Methods
Backend Engineer
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Technical
•
medium
Describe the Spring Boot bean lifecycle. What is the difference between @Component, @Service, and @Bean, and how does Spring manage dependency injection?
#Spring Boot
#Dependency Injection
#IoC
Backend Engineer
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Technical
•
easy
What are the different eviction policies in Redis? If you are using Redis as an LRU cache for user session data, which policy would you choose and why?
#Redis
#Caching
#Memory Management
Backend Engineer
•
Technical
•
medium
Explain the differences between gRPC and REST. In what scenarios within Adobe's microservice ecosystem would you choose gRPC over REST?
#gRPC
#REST
#Protobuf
#Network Protocols
Backend Engineer
•
Technical
•
medium
How do you size a ThreadPoolExecutor in Java? What factors do you consider when choosing between a fixed thread pool and a cached thread pool for I/O bound vs CPU bound tasks?
#Concurrency
#Multithreading
#Performance Tuning
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Think Out Loud
Always explain your thought process before writing code or drawing architecture.