Embedded Software Engineer - Networking drivers, ENA team

Job ID: 10375571 | Annapurna Labs Ltd.

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Join AWS's ENA (Elastic Network Adapter) drivers team and build the networking software that powers millions of cloud instances worldwide. We develop high-performance kernel and user-space drivers for multiple operating systems running on the virtual machines that deliver exceptional bandwidth, low latency, and optimal performance across AWS's global infrastructure.

As an embedded Software Engineer, you'll work on drivers running across Linux, Windows, DPDK, FreeBSD and other operating systems. Your code will impact AWS customers globally through both proprietary AWS technologies and open-source contributions. You'll collaborate with multiple teams, contribute to upstream projects, and solve challenging performance problems at a massive scale.

Key job responsibilities

- Design and implement networking drivers for AWS Nitro controllers powering millions of servers

- Optimize network performance: improve bandwidth utilization, packets-per-second (PPS), cycles-per-packet and reduce latency

- Develop and maintain kernel and user-space drivers across multiple operating systems (Linux, Windows, DPDK, FreeBSD, MacOS and other operating systems)

- Contribute to open-source repositories including the Linux kernel and upstream projects

- Debug complex networking issues in production environments with customer-facing impact

- Collaborate with multiple teams, kernel maintainers, AWS service teams and AWS customers

- Monitor driver performance metrics and maintain code quality standards

- Build monitoring and automation tools to enhance driver testing for functionality, reliability, and performance

Basic Qualifications

• - Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent work experience
• - 3+ years of professional software development experience with strong C/C++14 programming skills
• - Experience with systems programming (kernel-space or user-space development)
• - Understanding of networking concepts: TCP/IP stack, network protocols or network driver development
• - Familiarity with at least one of: Linux, Windows or FreeBSD operating systems

Preferred Qualifications

• - Contributions to open-source projects or upstream kernel work
• - Performance profiling and optimization experience
• - Knowledge of BPF/eBPF programming
• - Experience with Windows Hardware Lab Kit (HLK) certification
• - Experience with DPDK kernel bypass, SR-IOV, or hardware offload technologies
• - Understanding of PCIe, DMA, or hardware-software interfaces
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Job details

• ISR, Haifa
• Software Development

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