Software Engineer– X Core Product

SpaceXAI'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 employees are expected to have strong communication skills.

About the Role

As a Software Engineer for X Product/Platform, you'll join the thirty person team responsible for building and scaling X. You will independently own significant parts of the system end-to-end: from intuitive user interfaces to robust backend services, data infrastructure, and deep AI integrations.

This is an opportunity to build products used by more than 600M users globally.

Responsibilities

• Develop backend services, APIs, and data models to support high-volume, multi-user environments.
• Work with iOS, Android & Web client engineers to ship products.
• Design robust infrastructure and microservices for payments, transactions, growth, monetization, and engagement across platforms.
• Build and maintain fullstack features, including user dashboards, personalized experiences, content delivery, interactive tools, assessments, and real-time analytics.
• Lead architecture, scalability, and reliability decisions for high-concurrency, low-latency systems.
• Uphold engineering excellence via testing, monitoring, deployment, and secure data handling.

Basic Qualifications

• Proficiency in distributed systems for high-scale, low-latency environments.
• Experience with Rust, Go, Python, Java, and high-volume streaming systems.
• 2+ years of experience working on large-scale consumer applications.

Preferred Skills and Experience

• 5+ years of experience working on large-scale consumer applications or startup experience as a founding engineer.
• Experience with rapid prototyping, user-centric design, and AI solutions.

Compensation and Benefits

• $180,000 - $440,000 USD salary range.
• Equity package.
• Medical, vision, and dental coverage.
• 401(k) retirement plan.
• Short and long-term disability insurance.
• Life insurance and additional perks.

SpaceXAI is an equal opportunity employer. For details on data processing, view the Recruitment Privacy Notice.