Backend Engineer, Global Payments & AI Platform

Xai; Greater London; On-site; GBP 107,000 - 262,000; Full time

Benefits offered by this job

Equity

Healthcare

Dental

Cash plan

Income protection

Life insurance

Discounts

Job summary

SpaceXAI is seeking a talented Software Engineer to join the X Money team, building a global payment network for hundreds of millions of users. You will focus on backend development, designing robust microservices for payments, security, and reliability, while collaborating across cross-functional teams on fraud detection and compliance initiatives.

You will contribute to greenfield projects in a fast-paced startup-like environment, driving innovation at the intersection of AI and finance.

Qualifications

• Proficiency in distributed systems for high-scale, low-latency environments.
• 2+ years of experience working on large scale consumer applications.

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.

Skills

Distributed systems

Rust

Go

Python

Java

High-volume streaming

Experience

Job description

SpaceXAI is seeking a talented Software Engineer to join the X Money team, building a global payment network for hundreds of millions of users. You will focus on backend development, designing robust microservices for payments, security, and reliability, while collaborating across cross-functional teams on fraud detection and compliance initiatives.

You will contribute to greenfield projects in a fast-paced startup-like environment, driving innovation at the intersection of AI and finance.