Meta Production Engineering New Grad Interview Preparation Notes

Job Posting

https://www.metacareers.com/jobs/477195844990625

Interview Process Overview

Pre-screening

• Online Assessment: Linux 20-question multiple choice test covering basic Linux fundamentals to kernel internals

Screening (Phone Screen)

• PE Basics: Operating systems, Linux, troubleshooting, system design, and networking concepts
• PE Coding: File handling and scripting problems similar to LeetCode

Onsite (Loop)

• Behavioural: Experience-based questions about teamwork and problem-solving approach
• Systems Internals: Deep dive into systems concepts, OS internals, and debugging/troubleshooting scenarios
• SWE Coding: Standard software engineering coding round (data structures, algorithms)

Key Resources

Main Study Materials

• System Design Fundamentals (ByteByteGo): Comprehensive system design video series
• Meta Variant Compilation: LeetCode problem variants specific to Meta
• sadservers: Practice troubleshooting on linux

Study Materials

LeetCode Problems

Comprehensive collection of Meta-specific coding problems and solutions:

• Meta 50 Problems: Curated list of frequently asked problems
• Topic-wise Playlists: Hashmaps, Intervals, Parentheses, Design Data Structures, Math, Binary Search, Strings & Arrays, Sliding Windows, Stacks, 2-Pointer, Linked Lists, Graphs, Trees
• System Design Questions: Common topics like Ad Click Aggregator, Memcache, Top K Heavy Hitters, Botnets/Web Crawler, Online Chess, Design Coding Contest Platform, FB Privacy Settings, FB Live, DropBox, Newsfeed, Eventbrite

System Design

System design concepts and examples:

• System Design Fundamentals: Core concepts and principles
• Practical Examples: Multiplayer Battle Royale game design
• Visual Diagrams: Excalidraw diagrams for whiteboarding

Linux

Linux fundamentals and advanced concepts:

• Core Concepts: Kernel vs OS, userspace, file permissions, redirection, pipes
• Boot Process: Detailed Linux boot sequence with visual diagrams
• Troubleshooting: Performance analysis and debugging techniques
• Commands: Essential Linux commands and their usage

Operating Systems

Operating system concepts and internals:

• Process Management: Programs vs processes, Process Control Block (PCB)
• Memory Management: Memory allocation and management strategies
• File Management: File system concepts and operations
• Device Management: Hardware interaction and device drivers

Networking

Network protocols and concepts:

• HTTP/HTTPS: Request/response cycle, status codes, HTTP versions
• TCP/UDP: Connection-oriented vs connectionless protocols
• DNS: Domain name resolution process
• OSI Model: 7-layer network architecture
• Load Balancers: Layer 4 vs Layer 7, algorithms, types
• Containers & VMs: Virtualization concepts
• WebSockets: Real-time communication protocols

File Handling

Practical file handling and scripting problems:

• Connect to 100 Hosts: Network connectivity scripting
• API Data Processing: JSON parsing and manipulation
• CSV Operations: Data processing with CSV files
• Dinosaur CSV Problem: Complex data analysis scenarios
• Facebook Campaign: Campaign data analysis
• Email Address Extraction: Text processing and pattern matching
• Memory Usage Analysis: System resource monitoring
• IP Address Analysis: Network traffic analysis
• Instagram Engagement: Social media data processing
• Practice Problems: Additional file handling exercises

Interview Tips

1. Practice Whiteboarding: Use the Excalidraw diagrams for system design practice
2. Focus on File Handling: Meta PE heavily emphasizes file processing and scripting
3. Understand Linux Internals: Be comfortable with kernel concepts and troubleshooting
4. System Design Fundamentals: Practice common scenarios like load balancers, caching, and distributed systems
5. Coding Practice: Solve problems from the Meta 50 list and practice with the file handling exercises

Repository Structure

meta-production-engineering-new-grad/
├── README.md                 # This file - comprehensive overview
├── Leetcode/                 # Coding problems and solutions
├── SystemDesign/            # System design concepts and examples
├── Linux/                   # Linux fundamentals and troubleshooting
├── operatingsystems/        # OS concepts and internals
├── Networking/              # Network protocols and concepts
└── filehandling/           # some Practical file handling problems
    ├── a_connectto100hosts/
    ├── b_readfromAPIcalljson/
    ├── c_2params1tbfilereadupdown/
    ├── d_dinosaurcsvproblem/
    ├── e_facebookcampaign/
    ├── f_findemailaddress/
    ├── g_topmemoryusers/
    ├── h_mostfrequentIP/
    ├── i_instagramengagement/
    └── practise/

Getting Started

1. Review the Interview Process: Understand the different rounds and their focus areas
2. Start with Fundamentals: Begin with Linux and OS concepts for a strong foundation
3. Practice Coding: Work through the LeetCode problems and file handling exercises
4. Study System Design: Use the visual diagrams and practice whiteboarding
5. Network Concepts: Understand HTTP, TCP, DNS, and load balancing concepts