About the Role
About the Role
The Sandbox service team at SpaceXAI builds and maintains a secure, scalable system that gives our models safe, controlled access to computational environments. This infrastructure powers critical workloads across training and product, enabling models to run code, build software, interact with tools, and even control applications with user interfaces. We provision containers and virtual machines on large-scale clusters, granting models interactive control over these remote environments. Our work spans the full stack: from orchestrating massive jobs and resource scheduling at the cluster level, to fine-tuning filesystem performance on nodes. The Sandbox service enables Grok to safely run and test code in real-time for user queries, and supports reinforcement learning in training, where models interactively explore tools ranging from compilers to productivity apps.
Basic Qualifications
- Expert knowledge of Rust, C++ or Go
- Familiarity with Python
- Deep experience with either Linux or Windows systems (familiarity with both is a strong plus)
- Experience with virtualisation and containerisation technologies (e.g., cgroups, KVM, gVisor, QEMU)
- Solid knowledge of the networking stack
Compensation and Benefits
£107,000 - £262,000 GBP
Base salary is just one part of our total rewards package at SpaceXAI, which also includes equity, comprehensive healthcare and dental coverage, cash plan, income protection, life insurance, and various other discounts and perks.
Requirements
Expert knowledge of Rust
Strong proficiency in Rust is essential for this role.
Familiarity with Python
Basic knowledge of Python is required.
Experience with Linux or Windows
Deep experience with either Linux or Windows systems is necessary.
Virtualisation and containerisation
Experience with technologies like cgroups, KVM, gVisor, and QEMU is important.
Networking stack knowledge
Solid understanding of the networking stack is required.
Nice to Have
Familiarity with C++ or Go is a plus.
Familiarity with both Linux and Windows systems is a strong advantage.
Benefits
Equity
Employees receive equity as part of the compensation package.
Healthcare coverage
Comprehensive healthcare and dental coverage are provided.
Income protection
Income protection is included in the benefits.
Life insurance
Life insurance is part of the total rewards package.