Frontend Engineer

Pantera Capital; Remote; GBP 60,000 - 80,000; Full time

Job summary

A leading technology firm in Greater London is seeking a candidate with strong frontend development skills, especially in React and TypeScript. The role involves working on production systems for the company’s API, emphasizing maintainability and user experience. Successful applicants will participate in technical interviews focused on coding skills. The position offers comprehensive benefits including equity and medical coverage, supporting a diverse workforce.

Benefits

Equity

Comprehensive medical coverage

Access to a pension plan

Qualifications

• Strong understanding of frontend project implementation and long-term maintainability.
• Focus on performance and usability when building UIs.
• Experience delivering user-facing software at scale.

Responsibilities

• Work on xAI's production systems for grok.com and API.
• Participate in code base setup with maintainability in mind.

Skills

Expert knowledge React, TypeScript, and Tailwind

Export knowledge of NextJS

Good understanding of the HTTP protocol

Experience with Docker

Experience with backend engineering

Expert knowledge of gRPC

Hands-on experience with LLM APIs

Job description

About xAI

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
• An eye for good user interface design
• 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

Interview process

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:

1. React coding interview
2. HTML/CSS/Tailwind coding interview

Benefits

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.

xAI is an equal opportunity employer.