Sr. Software Engineer, Network (C++)

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Sr. Software Engineer, Network (C++) in USA new

xAI
Full time
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USA
11/05/2026
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Palo Alto, CA

Responsibilities

Develop routing and traffic-engineering algorithms for a high-performance datacenter network.
Develop reliable real-time software running on network switches that support the AI training fabric.
Lead or participate in architecture, design, and code reviews.
Prototype and run experiments at small and full-cluster scale.
Build software development, deployment, data analysis, visualization, and testing tools.
Deploy software updates through continuous integration and release systems with rigorous testing and monitoring.

Requirements

Bachelor’s degree in computer science, engineering, math, or another technical discipline, or 5+ years of professional software development experience in lieu of a degree.
Development experience in C or C++.
Preferred: strong professional experience writing high-performance C/C++ in production environments.
Preferred: experience developing, debugging, and deploying software at scale in real-world systems.
Preferred: deep knowledge of UDP, TCP/IP, RDMA, distributed systems, and large-scale datacenter fabrics.
Preferred: background in real-time systems, high-performance computing, low-latency networking, or resource-constrained environments.
Preferred: experience with security considerations in large-scale distributed systems.
Preferred: strong analytical, problem-solving, communication, and engineering skills.

Benefits

Equity and comprehensive medical, vision, and dental coverage.
Access to a 401(k) retirement plan, short- and long-term disability insurance, life insurance, discounts, and other perks.

Salary: $200k - $375k/yr

xAI

xAI builds advanced AI systems designed to deeply understand the universe and support humanity's quest for knowledge. Targeting innovators and thinkers, our platform emphasizes engineering excellence and hands-on collaboration, fostering an environment where curiosity drives results.

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