Backend Engineering Specialist, xAI

Salary not provided

Compensation is $45/hour - $100/hour

SQL

React

MongoDB

Docker

TypeScript

JavaScript

Python

GraphQL

Java

Redis

Node.js

Postgres

C++

MySQL

Rust

REST API

Senior and Expert level

San Francisco Bay Area

Remote from US

More information about location

Building artificial intelligence

Be an early applicant

Building artificial intelligence

1001+ employees

B2CB2BArtificial IntelligenceDeep TechMachine Learning

Be an early applicant

Salary not provided

Compensation is $45/hour - $100/hour

SQL

React

MongoDB

Docker

TypeScript

JavaScript

Python

GraphQL

Java

Redis

Node.js

Postgres

C++

MySQL

Rust

REST API

Senior and Expert level

San Francisco Bay Area

Remote from US

More information about location

1001+ employees

B2CB2BArtificial IntelligenceDeep TechMachine Learning

Company mission

To build AI systems that can help humanity understand the world better.

Job

Company

Role

Who you are

5+ years of professional back-end development experience
Proficient in multiple server-side languages (Python, Node.js)
Strong experience designing and implementing RESTful APIs and GraphQL endpoints
Hands-on experience with both relational (PostgreSQL, MySQL) and non-relational (MongoDB, Redis) databases
Understanding of database optimization, indexing strategies and query performance
Deep understanding of web security principles, including authentication, authorization and data protection
Experience with asynchronous processing and background job systems
Experience with testing frameworks for unit, integration and end-to-end testing

Desirable

The ideal candidate for this role is adaptable, possesses strong logical reasoning skills, is detail-oriented, and thrives in a fast-paced work environment
Experience with containerization technologies (Docker)
Familiarity with front-end technologies (TypeScript, React) to enable effective cross-functional collaboration

What the job involves

AI model training initiatives by curating code examples, offering precise solutions, and meticulous corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust and Go. The Back-End Specialist will focus on any and all Enterprise aspects, as listed in ‘Required Qualifications’ section
Evaluate and refine AI-generated code, ensuring it adheres to industry standards for efficiency, scalability, and reliability
Collaborate with cross-functional teams to enhance AI-driven coding solutions, ensuring they meet enterprise-level quality and performance benchmarks

Application process

After submitting your application, our team will review your CV and statement of exceptional work. If your application advances, you will be invited to a 15-minute phone interview to discuss basic qualifications. Successful candidates will proceed to the main process, which includes:
Technical deep-dive: Discussing your legal and compliance expertise and data annotation experience
A take-home challenge focused on legal or compliance data labeling or analysis
A meet-and-greet with the wider team
Our goal is to complete the main interview process within one week

Our take

xAI is Elon Musk's venture into the world of artificial intelligence, and like all things Musk, it's going big. Its setting out to build AI that helps humanity understand the universe and its starting with Grok, its conversational AI chatbot already integrated into X (formerly Twitter). With access to real-time data and a powerful ecosystem of Musk-led companies, xAI is certainly pushing towards artificial general intelligence at serious scale.

Like all bold ventures, xAI has faced its share of controversy, from questions about regulation to the overlap across Musk's businesses. But fans are still seeing the bigger picture: an interconnected tech ecosystem where AI, social media, and space exploration feed into one another.

Recently, the company made headlines with its massive "Colossus" supercomputer project, powered by tens of thousands of Nvidia GPUs. While the data center's temporary power setup has faced environmental scrutiny, the scale of ambition is certainly undeniable. From launching tap-to-pay features on X to building one of the most powerful AI training systems on Earth, xAI is moving fast.

Steph

Company Specialist at Welcome to the Jungle

Company

Funding (last 2 of 4 rounds)

Jul 2025

$5bn

GROWTH EQUITY VC

Dec 2024

$6bn

SERIES C

Total funding: $17.1bn

Company benefits

Health and wellness: Comprehensive health insurance including medical, dental, vision, and disability coverage
Life and family: Life and AD&D insurance and fertility benefits to ensure our team’s well-being and peace of mind
Flexible vacation: We work hard but avoid burn out. Take time off when you need it
Visa sponsorship: We support international talent with visa sponsorship to join our team
401(k) plan: Retirement savings plan to secure your financial future

Company HQ

Downtown, Burlingame, CA

Leadership

Elon Musk

(Founder)

Founder, Chairman, CEO, and CTO of SpaceX. CEO and Product Architect of Tesla. Chairman and CTO of X Corp, founder of the Boring Company, co-founder of Neuralink and OpenAI, and president of the Musk Foundation.

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