Frontend Engineer

xAI; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading AI technology company in London is seeking a frontend engineer to work on their production systems. The role requires expertise in React, TypeScript, and Tailwind, with a strong focus on performance and usability. Ideal candidates will have experience in Docker and Kubernetes, along with a familiarity of backend engineering concepts. The company offers a comprehensive benefits package including equity and medical coverage.

Benefits

Equity

Comprehensive medical coverage

Pension plan

Short & long-term disability insurance

Life insurance

Qualifications

• Good understanding of how complex frontend projects are implemented.
• Focus on performance and usability when building UIs.
• Experience with backend engineering (Rust is a plus).

Responsibilities

• Work on xAI's production systems that power grok.com and the API.
• Set up code bases with long-term maintainability in mind.

Skills

Expert knowledge React

Expert knowledge of TypeScript

Expert knowledge of Tailwind

Export knowledge of NextJS

Good understanding of the HTTP protocol

Tools

Docker

Kubernetes

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

In this role you will work on xAI's production systems that power grok.com and the API. The actual team matching will happen at the offer stage.

About the role

As an ideal candidate you have a good understanding of how complex frontend projects are implemented. You know how to set up code bases with long-term maintainability in mind. When building UIs, you focus on performance and usability. Ideally, you also bring the following:

• Expert knowledge React, TypeScript, and Tailwind
• Export knowledge of NextJS
• Good understanding of the HTTP protocol

Additionally, any of the below points will help a candidate stand out:

• Experience with Docker, Kubernetes, and containerized applications
• Experience with backend engineering (Rust is a plus)
• Expert knowledge of gRPC (unary, response streaming, bi-directional streaming, REST mapping),
• Hands-on experience with LLM APIs, embeddings, or RAG patterns
• Track record of delivering user-facing software at scale

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:

• React coding interview
• HTML/CSS/Tailwind coding interview

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 a pension plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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