Back-End Engineer for Cross-Border Payments Platform

Xe.com; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Competitive Salary

23 days annual leave

Birthday day off

4% employer pension

Discounted ESPP

Life Cover

Healthcare

Mental Health & Wellbeing

Volunteer day

Job summary

Xe.com is hiring a mid-level back-end engineer to own problems end-to-end, from API design to production reliability. You’ll build services that move money, manage currencies, and support onboarding, KYC/KYB, and settlement. You’ll work with product, compliance, and operations in a small, fast-moving team, using AI tools daily.

You’ll contribute to the platform rewrite in a modern stack, partnering with architects and team leads on design decisions and production readiness.

Qualifications

• 3 to 6 years building production backend services, end-to-end.
• Strong backend proficiency in C# / .NET preferred; other OOP languages welcome.
• SQL and relational database fundamentals.
• Writing and maintaining tests.
• Daily use of agentic coding tools across the SDLC.
• Production experience with AWS, including SQS, DynamoDB, S3, ECS and Lambda.
• Strong system design fundamentals, distributed systems and async/event-driven patterns.
• Strong written and verbal communication.

Responsibilities

• Build backend services to move money and manage multi-currency balances, covering onboarding, KYC/KYB, payment initiation, FX, and settlement.
• Partner with product, compliance, and operations from problem framing through launch.
• Build and operate partner integrations and settlement infrastructure your services depend on.
• Own your services in production, including reliability, observability, on-call, and incident response.
• Use agentic coding tools daily across the SDLC, and help modernize the platform.

Skills

C#/.NET

SQL

Testing

Copilot/Cursor/Claude Code

AWS

Distributed systems

Communication

Tools

AWS Services

SQS

DynamoDB

S3

ECS

Lambda

CI/CD

Redis

Job description

Xe.com is hiring a mid-level back-end engineer to own problems end-to-end, from API design to production reliability. You’ll build services that move money, manage currencies, and support onboarding, KYC/KYB, and settlement. You’ll work with product, compliance, and operations in a small, fast-moving team, using AI tools daily.

You’ll contribute to the platform rewrite in a modern stack, partnering with architects and team leads on design decisions and production readiness.