Meta Hiring For Software Engineer & Host Networking at Bangalore | Apply Now

Meta Hiring For Software Engineer & Host Networking at Bangalore. This full-time engineering role is part of Meta’s Host Networking team, which plays a critical role in managing millions of Network Interface Cards (NICs) across the company’s infrastructure. These NICs power Meta’s services, applications, and AI accelerators for large-scale training and inference workloads.

If you are passionate about low-level networking, driver development, transport stack design (RDMA), and Linux kernel engineering, this opportunity may be perfect for you.

Meta Hiring For Software Engineer About

The Host Networking Software Engineer will design, develop, and optimize networking software solutions for Meta’s massive AI clusters. These systems demand high-performance, scalable, and reliable transport solutions that handle both general workloads and AI-specific accelerator traffic.

The role requires strong expertise in C/C++, Python, Linux Kernel development, device drivers, and network transport stacks. Candidates will work directly on building drivers, firmware, and networking protocols, enabling fast and secure communication across distributed AI workloads.

Key Responsibilities

As a Software Engineer – Host Networking, your primary responsibilities include:

1. Driver and Firmware Development
   • Design and implement Ethernet adapter drivers and firmware functions.
   • Build and maintain transport stacks for RDMA (RoCEv2).
   • Manage control functions between host and accelerators.
2. CI/CD and Testing
   • Build automated tests for driver and networking stack validation.
   • Contribute to continuous integration and delivery pipelines.
3. Simulation & Emulation
   • Test networking solutions in simulation environments (QEMU, FPGA Emulation) before hardware deployment.
4. Hardware Bringup
   • Work on hardware testing and validation in scaled environments.
   • Debug issues in large-scale distributed systems.

Minimum Qualifications

To be eligible for this role, candidates should meet the following requirements:

• Programming expertise: Proficiency in C, C++, and Python.
• Education: Bachelor’s degree in Computer Science, Computer Engineering, or related technical fields (or equivalent practical experience).
• Linux Kernel experience: Strong background in Linux device drivers and networking stack internals.
• Transport stack knowledge: Experience with RDMA (RoCEv2) transport protocols.
• Debugging skills: Ability to debug issues in large-scale distributed systems.
• Commitment: Candidate must remain in the same team in India for 24 months before being eligible for transfer.

Preferred Qualifications

While not mandatory, the following skills will give candidates an edge:

• Experience with QEMU and FPGA emulation environments.
• Strong knowledge of networking protocols, packet processing, and accelerators.
• Prior experience in scalable system architecture.

Sample Interview Questions for Meta – Host Networking Role

If you are preparing for the interview process, here are some potential technical interview questions aligned with the role’s requirements:

C / C++ Programming Questions

1. Explain memory management differences between malloc/free and new/delete in C++.
2. How would you implement a thread-safe queue in C++?
3. Write a C function to reverse a linked list.
4. What are pointers to functions, and when would you use them?
5. Explain the concept of RAII (Resource Acquisition Is Initialization) in C++.

Python Programming Questions

1. How would you handle concurrency in Python (using threading, multiprocessing, or asyncio)?
2. Write a Python script to monitor network latency and throughput.
3. Explain the GIL (Global Interpreter Lock) and its impact on performance.
4. How do you integrate Python with C/C++ extensions for performance-critical code?

Linux Kernel & Device Driver Questions

1. Explain the difference between user space and kernel space.
2. How would you debug a kernel panic?
3. What is the role of interrupt handlers in device drivers?
4. How does the Linux networking stack handle packet transmission and reception?
5. Explain ioctl system calls in device drivers.

Networking & RDMA Questions

1. What is RDMA, and how does RoCEv2 differ from traditional TCP/IP communication?
2. How do zero-copy networking techniques improve performance?
3. Explain the differences between TCP, UDP, and RDMA transport layers.
4. How would you debug a network packet drop in a distributed system?
5. What is InfiniBand vs. RoCE, and why might a company choose one over the other?

System Design & Debugging Questions

1. Design a scalable transport system for a cluster of AI accelerators.
2. How would you monitor and debug performance bottlenecks in a large-scale networking system?
3. Explain how you would build a fault-tolerant networking layer for distributed training workloads.

👉 Apply Now: Meta Careers – Software Engineer Host Networking (Bangalore)

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