xAI
Join to apply for the
Senior Backend Engineer - Starfleet
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xAI Join to apply for the
Senior Backend Engineer - Starfleet
role at
xAI Get AI-powered advice on this job and more exclusive features. 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 and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. 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 and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. About the Team The Starfleet team is responsible for creating the tools and systems necessary to drive frontier model performance. We collaborate closely with our research teams and AI tutor teams to develop new solutions that accelerate research progress across model capabilities, evaluation, safety, and alignment.
About the Role
In this role you might:
Design and build robust, scalable backend systems to power our AI-driven tools and platforms.
Develop APIs and distributed systems that handle high-throughput data processing for model training and evaluation.
Create secure, reliable pipelines to support innovative human data generation and agentic workflows.
Optimize infrastructure to leverage cutting-edge GPU resources for maximum performance.
Innovate new approaches that bring us closer to our goal: to develop AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.
Exceptional candidates may have:
Experience building high-performance backend systems in dynamic, fast-paced environments - as a tech lead, former founder, etc.
Expertise in designing scalable distributed systems and APIs with a compiled language like Rust or C++.
Experience optimizing data pipelines for machine learning workloads or real-time applications.
Familiarity with frontend technologies (e.g., TypeScript, React) to collaborate seamlessly with cross-functional teams.
Tech Stack
Typescript, Python, Rust
React, Express, PostgreSQL
Location The role is based in the Bay Area [San Francisco and Palo Alto]. Candidates are expected to be located near the Bay Area or open to relocation.
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 assessment in a language of your choice.
Front end technical interview, in React/Typescript
Systems hands-on: Demonstrate practical skills in a live problem-solving session.
Meet the Team: Present your past exceptional work and your vision with xAI to a small audience.
Our goal is to finish the main process within one week. All interviews will be conducted via Google Meet.
Annual Salary Range $180,000 - $440,000 USD xAI is an equal opportunity employer.
California Consumer Privacy Act (CCPA) Notice
Seniority level
Seniority level Mid-Senior level Employment type
Employment type Full-time Job function
Job function Engineering and Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at xAI by 2x Get notified about new Back End Developer jobs in
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We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr
Senior Backend Engineer - Starfleet
role at
xAI Join to apply for the
Senior Backend Engineer - Starfleet
role at
xAI Get AI-powered advice on this job and more exclusive features. 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 and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. 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 and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. About the Team The Starfleet team is responsible for creating the tools and systems necessary to drive frontier model performance. We collaborate closely with our research teams and AI tutor teams to develop new solutions that accelerate research progress across model capabilities, evaluation, safety, and alignment.
About the Role
In this role you might:
Design and build robust, scalable backend systems to power our AI-driven tools and platforms.
Develop APIs and distributed systems that handle high-throughput data processing for model training and evaluation.
Create secure, reliable pipelines to support innovative human data generation and agentic workflows.
Optimize infrastructure to leverage cutting-edge GPU resources for maximum performance.
Innovate new approaches that bring us closer to our goal: to develop AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.
Exceptional candidates may have:
Experience building high-performance backend systems in dynamic, fast-paced environments - as a tech lead, former founder, etc.
Expertise in designing scalable distributed systems and APIs with a compiled language like Rust or C++.
Experience optimizing data pipelines for machine learning workloads or real-time applications.
Familiarity with frontend technologies (e.g., TypeScript, React) to collaborate seamlessly with cross-functional teams.
Tech Stack
Typescript, Python, Rust
React, Express, PostgreSQL
Location The role is based in the Bay Area [San Francisco and Palo Alto]. Candidates are expected to be located near the Bay Area or open to relocation.
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 assessment in a language of your choice.
Front end technical interview, in React/Typescript
Systems hands-on: Demonstrate practical skills in a live problem-solving session.
Meet the Team: Present your past exceptional work and your vision with xAI to a small audience.
Our goal is to finish the main process within one week. All interviews will be conducted via Google Meet.
Annual Salary Range $180,000 - $440,000 USD xAI is an equal opportunity employer.
California Consumer Privacy Act (CCPA) Notice
Seniority level
Seniority level Mid-Senior level Employment type
Employment type Full-time Job function
Job function Engineering and Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at xAI by 2x Get notified about new Back End Developer jobs in
Palo Alto, CA . Palo Alto, CA $96,000 - $200,000 2 weeks ago Associate Software Engineer, Backend Python
San Jose, CA $142,400 - $190,100 2 weeks ago Full Stack Software Engineer - Post-training
Backend Software Engineer, CloudKitchens - San Francisco/Bay Area, CA
Mountain View, CA $157,000.00 - $202,000.00 2 months ago Sunnyvale, CA $117,000.00 - $234,000.00 1 week ago eCommerce Full Stack Developer (React / Shopify) - On Site
San Jose, CA $130,000.00 - $182,000.00 1 year ago Palo Alto, CA $150,000.00 - $220,000.00 8 hours ago Full Stack Software Engineer (L4), Product Localization Engineering
San Francisco Bay Area $72,800.00 - $110,000.00 3 weeks ago Associate Software Engineer, Backend Java
Backend Software Engineer, Observability
Palo Alto, CA $113,000.00 - $200,000.00 2 weeks ago Full Stack Software Engineer (L5) - Partner Device Lifecycle Apps Team
Software Engineer II (Fullstack/Mobile), Discovery Experience
Sunnyvale, CA $167,000 - $185,500 1 month ago Full Stack Software Engineer - Multimodal
Backend Engineer - Events and Notifications
San Mateo, CA $130,000 - $280,000 4 days ago Full-Stack Engineer (L5), Identity & Security Experiences
We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr