Backend Engineer: Scalable Payments & AI Platform (Equity)

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

Benefits offered by this job

equity

comprehensive healthcare and dental

cash plan

income protection

life insurance

discounts and perks

Job summary

SpaceXAI is building a revolutionary global payments network serving hundreds of millions of users. The backend team focuses on scalable microservices, secure data handling, and high-performance APIs across platforms.

You will collaborate with cross-functional teams on payments, fraud detection, and compliance, contributing to a high-scale financial products platform in a fast-paced, startup-like environment.

Qualifications

• Experience with distributed, high-scale, low-latency systems.
• 2+ years building large-scale consumer applications.
• Experience as founding engineer in early-mid stage startups (preferred).

Responsibilities

• Develop backend services, APIs and data models for high-volume multi-user environments.
• Collaborate with iOS, Android and Web engineers to ship products.
• Design robust infrastructure and microservices for payments, transactions and growth.
• Build full-stack features including dashboards, content delivery and analytics.
• Lead architecture and reliability decisions for high-concurrency, low-latency systems.
• Ensure testing, monitoring, deployment and secure data handling.

Skills

Distributed systems

Rust

Go

Python

Java

Streaming systems

Job description

SpaceXAI is building a revolutionary global payments network serving hundreds of millions of users. The backend team focuses on scalable microservices, secure data handling, and high-performance APIs across platforms.

You will collaborate with cross-functional teams on payments, fraud detection, and compliance, contributing to a high-scale financial products platform in a fast-paced, startup-like environment.