About the team

The xAI London team is a team of software engineers with a focus on large-scale, highly-reliable distributed systems. We work on many different levels of the stack ranging from build systems, to production backend infrastructure, and frontend development. For example, we built large parts of the Grok production stack. We focus on building high-quality software and aren’t afraid to delve into technically complex topics to solve problems the right way.

About the role

We’re looking for an experienced and versatile software engineer who can thrive in a dynamic start-up environment. An ideal candidate meets at least the following requirements:

Expert in at least one programming language that compiles to machine code such as Rust, C++, or Go. Rust or C++ experience is preferred,
Expert in Python and writing Python bindings in a compiled language such as C (using the Python API), C++ (pybind11, SWIG, CLIF), or Rust (pyo3),
Experience in designing reliable and horizontally scalable distributed systems,
Experience in API design.

Additionally, experience in any of the following technologies may help a candidate stand out:

TypeScript and React or Angular
gRPC
Kubernetes
JAX
CUDA
MLIR
Triton
XLA

Location

The role is based in our London office close to Piccadilly Circus underground station. We usually work from the office 5 days a week but allow for work-from-home days when required. Candidates must be willing to attend late meetings at least twice a week to coordinate with the rest of our team, which is based in California. This role includes semi-regular business trips to California.

Interview process

After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes this stage, you will be invited to a 15 minute interview (“phone interview”) during which a member of our team will ask some basic questions. If you clear the initial phone interview, you will enter the main process, which consists of four technical interviews:

Coding interview in Rust, C++ or Go,
Coding interview in Python,
Distributed systems design interview,
Meet the wider team and give a 20 minute presentation about the most difficult technical problems you have solved.

Our goal is to finish the process within one week. We don’t rely on recruiters for assessments. Every application is reviewed by a member of our technical team. All interviews will be conducted via Google Meet.

Benefits

Competitive cash-based compensation
xAI equity
Private health and dental insurance
Unlimited time off subject to prior approval

California Consumer Privacy Act (CCPA) Notice

Apply for this Job

* Required

First Name *

Last Name *

Email *

Phone

Resume/CV *

Dropbox Google Drive

(File types: pdf, doc, docx, txt, rtf)

What exceptional work have you done? *

Tell us about a piece of work that you are most proud about.

Current company

If you are currently employed in the field, please tell us the name of your employer.

Current title

If you are currently employed in the field, please tell us your role including your seniority level (e.g. Software Engineer II).

LinkedIn Profile

If you have a public LinkedIn profile, please provide its URL.

X Profile

If you have a public X profile, please provide its URL.

Google Scholar

If you have a Google Scholar page, please provide its URL.

Enter the verification code sent to to confirm you are not a robot, then submit your application.

Security Code *

This application was flagged as potential bot traffic. To resubmit your application, turn off any VPNs, clear the browser's cache and cookies, or try another browser. If you still can't submit it, contact our support team through the help center.

Software Engineer (Backend & Data processing)

Apply for this Job