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# Principal Software Engineer (Networking Systems)

- **Company:** Microsoft
- **Location:** New York, NY, United States (Remote available)
- **Experience:** Expert
- **Salary:** $139,900 - $274,800
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Microsoft Azure, Microsoft Online Services, C Sharp (Programming Language), C++ (Programming Language), Cloud Computing, Computer Networks, Data Centers, Distributed Systems, Ethernet, Network Interface Controllers, InfiniBand, Python (Programming Language), Network Architecture, Network Virtualization, Network Protocols, Performance Tuning, Remote Direct Memory Access, Reliability Engineering, TCP/IP, AI Infrastructure, Rust (Programming Language), Computer Networking Systems, AI Platforms, Information Technology, Machine Learning Operations, Front End Software Development
- **Published:** November 8, 2026
- **Apply:** https://www.juju.com/job/28_25303_04cb7a2a0637c09577a427d3e47d8b29

## About the Role

* Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
 * 5+ years of experience in network engineering, with expertise in transport, datacenter, or host networking.
 * 5+ years of experience in networking protocols (TCP/IP, RDMA, Ethernet, InfiniBand) and cloud technologies.
 * 5+ years of experience with large-scale distributed systems and AI infrastructure., * PhD Degree in Computer Science or related technical field.
 * Experience with AI/ML workloads and their networking requirements.
 * Familiarity with datacenter hardware (switches, NICs, DPUs, accelerators).
 * Advanced knowledge of SDN, network virtualization, and automation frameworks.
 * Demonstrated ability to drive technical initiatives and mentor engineers.
 * Solid programming skills in C, C++, Python, Rust, or similar languages.
 * Proven ability to collaborate and communicate across teams., * Ability to meet Microsoft, customer and/or government security screening requirements. This includes the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter.

## Description

Are you passionate about designing the next generation of networking solutions for AI-driven and Azure datacenters? Join our team to architect and implement transport and other networking solutions that power Microsoft's cloud-scale AI and Azure infrastructure. As a Network Engineer at L65, you will collaborate across hardware, software, and business teams to deliver robust, scalable, and innovative networking solutions., * Design and implement transport networking architectures to support high-performance AI workloads and distributed systems.

 * Develop and optimize frontend datacenter networking solutions, ensuring seamless connectivity, reliability, and scalability for cloud and AI services.
 * Engineer host networking frameworks that enable efficient communication between compute nodes, storage, and accelerators.
 * Collaborate with cross-functional teams (hardware, software, product, and business) to define requirements and deliver integrated solutions.
 * Drive adoption of best practices in network observability, diagnostics, and performance optimization.
 * Participate in incident response and root cause analysis to ensure live site reliability and continuous improvement.
 * Contribute to technical strategy and innovation in AI networking and datacenter connectivity.