Backend Engineer for Global Payments & AI Platforms

SpaceX Super Intelligence; Greater London; On-site; GBP 107,000 - 262,000; Full time

Benefits offered by this job

Equity

Healthcare

Dental coverage

Cash plan

Income protection

Life insurance

Employee discounts

Job summary

SpaceXSI is hiring a Software Engineer to join the X Money team, building a global payments network for hundreds of millions of users. You will design backend services, microservices, and data models to ensure scalability, security, and reliability, collaborating with cross-functional teams across payments, fraud detection, and compliance in a startup-like environment.

This role offers opportunities to work on greenfield projects at the intersection of AI and finance, with a focus on robust

Qualifications

• Proficiency in distributed systems for high-scale, low-latency environments.
• Experience with Rust, Go, Python and Java in backend contexts.
• Familiarity with high-volume streaming architectures.

Responsibilities

• Develop backend services, APIs, and data models to support high-volume, multi-user environments.
• Collaborate 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 dashboards, personalized experiences, and real-time analytics.
• Lead architecture, scalability, and reliability decisions for high-concurrency, low-latency systems.
• Maintain engineering excellence via testing, monitoring, deployment, and secure data handling.

Skills

Distributed systems

Rust

Go

Python

Java

High-volume streaming

Job description

SpaceXSI is hiring a Software Engineer to join the X Money team, building a global payments network for hundreds of millions of users. You will design backend services, microservices, and data models to ensure scalability, security, and reliability, collaborating with cross-functional teams across payments, fraud detection, and compliance in a startup-like environment.

This role offers opportunities to work on greenfield projects at the intersection of AI and finance, with a focus on robust