API Platform Engineer — Scalable Backend (Rust/C++)

london, england, United-Kingdom • Posted May 21, 2026

Job Type: Full-time
Location: london, england
Posted: May 21, 2026
Category: IT & Technology
Application Deadline: June 30, 2026

Role Description

x.ai in Greater London is seeking a backend infrastructure engineer to build the xAI API for developers worldwide. Ideal candidates will have expert knowledge of Rust or C++, experience in designing and maintaining distributed systems, and a strong understanding of observability and reliability. Responsibilities include building high-throughput API infrastructure and managing system scalability. This role requires hands-on initiative and excellent communication skills in a collaborative environment.
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