Backend Software Engineer, xAI

• This organization is for individuals who appreciate challenging themselves and thrive on curiosity
• All engineers and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates
• Experience: 5+ years in backend or systems engineering, with experience in high-scale platforms
• Expert in distributed systems: You’ve built and maintained systems with high concurrency, fault tolerance, and uptime
• Builder mentality: You thrive in fast-paced, high-impact environments and are excited by solving zero-to-one problems
• Strong communicator: You articulate complex technical ideas clearly, advocate for simple solutions, and avoid over-engineering
• Revenue-minded: You understand the importance of building systems that drive business outcomes and user satisfaction

Desirable

• Our team is small, highly motivated, and focused on engineering excellence
• We’re looking for an exceptional backend software engineer to join the Monetization Team at X, a high-impact group responsible for driving significant revenue through three key products: X Premium, X Verified Organizations, and the Creator Revenue Sharing Program
• These products serve millions of users and businesses daily, powering subscriptions, growth, and creator monetization on one of the world’s largest platforms
• As a backend engineer, you’ll design and build scalable, high-performance systems that power subscriptions infrastructure, new monetized products, user growth, and creator monetization
• You’ll work on mission-critical infrastructure that processes millions of transactions, optimizes user acquisition and retention, and enables creators to earn a living through their content
• This is a unique opportunity to make a large-scale revenue impact while creating products that users and businesses love
• Design and build robust subscriptions infrastructure, handling payments and SKU technology across devices and platforms for millions of daily users
• Develop growth systems to acquire, activate, and retain users, maximizing lifetime value and revenue
• Create innovative products for X’s users and businesses, driving subscription adoption and engagement
• Build algorithms and systems to support creators, enabling them to monetize high-quality content effectively
• Lead technical decisions on architecture, scalability, and reliability for high-concurrency, low-latency systems
• Collaborate with product, infrastructure, and compliance teams to deliver end-to-end functionality
• Uphold engineering excellence through rigorous testing, monitoring, and continuous deployment practices

• 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 30-minute phone interview with technical questions
• If you clear the phone interview, you will proceed to:
• Coding assessment in a language of your choice
• Systems design: Translate high-level requirements into a scalable, fault-tolerant service
• Project deep-dive: Present your past exceptional work to a small audience
• Meet and greet with the wider team
• Our goal is to complete the main process within one week