Site Reliability Engineer (SRE)

xAI; City Of London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A technology company in London is seeking a skilled engineer for backend services. The role demands expert knowledge of Kubernetes and deployment systems, as well as a strong work ethic. You'll work on highly scalable services that handle extensive queries. Experience with monitoring tech and infrastructure code is essential. This position involves in-person work with occasional remote flexibility.

Benefits

Equity

Comprehensive medical coverage

Vision coverage

Dental coverage

Access to pension plan

Disability insurance

Life insurance

Qualifications

• Expert knowledge of Kubernetes.
• Familiarity with Buildkite and ArgoCD for continuous deployment.
• Experience with Prometheus, Grafana, and PagerDuty.
• Working knowledge of Pulumi or Terraform.
• Experience with nginx and envoy.

Responsibilities

• Work on backend services for products like grok.com.
• Write and maintain scalable and reliable services.
• Process tens of thousands of queries per second.

Skills

Kubernetes

Continuous deployment systems

Monitoring technologies

Infrastructure as code technologies

Traffic management and HTTP proxies

Job description

xAI’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 engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

About the team

You will work on the team that is responsible for the backend services that power our products such as grok.com and the API. We focus on writing and maintaining highly scalable and reliable services that can efficiently process tens of thousands of queries per second. The services are hosted on a number of Kubernetes clusters (on‑prem & cloud).

About the role

An ideal candidate meets at least the following requirements:

• Expert knowledge of Kubernetes
• Expert knowledge of continuous deployment systems such as Buildkite and ArgoCD
• Expert knowledge of monitoring technologies such as Prometheus, Grafana, and PagerDuty
• Expert knowledge of infrastructure as code technologies such as Pulumi or Terraform
• Experience with traffic management and HTTP proxies such as nginx and envoy

Location

This position is in‑person in London, UK. 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 once a week to coordinate with the rest of our team in Palo Alto.

After submitting your application, the team reviews your statement of exceptional work and CV. 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 technical questions. If you clear the initial phone interview, you will enter the main process, which consists of at least two technical interviews.

All interviews will be conducted via Google Meet.

Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to our Aviva pension plan, short & long‑term disability insurance, life insurance, and various other discounts and perks.