Member of Technical Staff - Sandbox Service
SpaceXAI · On-site
MeritLog read this listing from SpaceXAI's Greenhouse job board and last checked it on September 12, 2026.
Source: the employer's Greenhouse job board. Open the original listing for current details.
Job details
- Work model
- On-site
- Salary
- £107,000 – £262,000
- Location
- London, England, United Kingdom
Hiring context
How this role compares at SpaceXAI
SpaceXAI has 255 live roles in MeritLog’s catalog across 9 job families, and 110 of them are in data & analytics. 3 of those listings publish a pay range, a disclosure rate of 1%.
SpaceXAI concentrates this hiring in:
Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.
What the role asks for
What they're asking for
- Expert knowledge of Rust, C++ or GoSkill
- Familiarity with PythonSkill
- Deep experience with either Linux or Windows systems (familiarity with both is a strong plus)Skill
- Experience with virtualisation and containerisation technologies (e.g., cgroups, KVM, gVisor, QEMU)Skill
- Solid knowledge of the networking stackSkill
Parsed by MeritLog from the employer’s own posting. The full description follows below.
Job description
SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. 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. SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.
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