C++ Network Engineer — High-Performance, Equity Options

SpaceXAI; Palo Alto (CA); On-site; USD 180,000 - 440,000; Full time

Benefits offered by this job

Equity

Medical insurance

Vision coverage

Dental coverage

401(k) retirement plan

Disability insurance

Life insurance

Employee discounts

Job summary

SpaceXAI seeks engineers to develop routing algorithms and real-time software for its Colossus datacenter network, delivering low-latency, high-bandwidth AI training fabric. You will participate in architecture reviews, prototype and validate design decisions, and build cross-functional tooling for deployment and testing.

The role requires strong C/C++ development, experience at scale, and deep knowledge of networking protocols.

Qualifications

• Bachelor’s degree in computer science, engineering, math, or a related technical discipline; OR 2+ years of professional software development experience in lieu of a degree.
• Strong development experience in C or C++.

Responsibilities

• Develop routing and traffic-engineering algorithms for the Colossus high-performance datacenter network.
• Develop highly reliable, real-time software designed to run on the switches that form the backbone of our low-latency, high-bandwidth AI training fabric.
• Participate in and lead architecture, design, and code reviews.
• Develop prototypes and run experiments to validate key design decisions at both small and full-cluster scale.
• Build tools for software development, deployment, data analysis, visualization, and testing across virtualized environments, hardware-in-the-loop setups, and live production clusters.
• Deploy reliable software updates through continuous integration and release systems with rigorous testing and monitoring.

Skills

C/C++ high-performance

Networking protocols

Distributed systems

Real-time systems

Problem solving

Communication skills

Education

Bachelor’s degree or 2+ years experience

Job description

SpaceXAI seeks engineers to develop routing algorithms and real-time software for its Colossus datacenter network, delivering low-latency, high-bandwidth AI training fabric. You will participate in architecture reviews, prototype and validate design decisions, and build cross-functional tooling for deployment and testing.

The role requires strong C/C++ development, experience at scale, and deep knowledge of networking protocols.