Senior FX Risk & Trading Systems Engineer

Visa; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Visa in London is seeking a Senior Software Engineer to join the FX Routing and Aggregation team. You will build and operate core FX trading services, leverage real-time data and design for scale in a microservices architecture across AWS and Kubernetes.

The role emphasizes ownership, collaboration with Treasury/Trading/Platform teams, and mentoring peers. A strong background in Java and distributed systems is required, with experience in finance considered beneficial.

Qualifications

• 5+ years of experience in software development.
• 2+ years building microservices with Java.
• Proficient in other programming languages; comfortable reading Ruby or Scala.
• Experience with MySQL or relational databases.
• Experience designing event-based and streaming solutions using Kafka.
• Experience running applications in Kubernetes.
• Hands-on experience delivering high-quality production code.
• Experience managing contractors/outsource teams.
• Experience in financial software domain is beneficial.
• Experience working with Agile/DevOps practices.
• Proficient in multiple languages; Java focus.

Responsibilities

• Build and maintain FX trading services including pricing engines, risk management systems, and market data providers.
• Work with real-time FX market data from providers using FIX protocol.
• Design and implement high-throughput, low-latency services handling billions in FX transactions.
• Lead technical discussions around hexagonal architecture and distributed systems design.
• Mentor junior engineers and establish best practices for the team.
• Own your domain end-to-end with clear service boundaries and independent deployment paths.
• Collaborate with Treasury, Trading, and Platform teams across the organization.

Skills

Java

Microservices

Kubernetes

SQL

Kafka

AWS

Ruby/Scala familiarity

Tools

Docker

OpenAPI

JUnit

Terraform

Datadog

Job description

Visa in London is seeking a Senior Software Engineer to join the FX Routing and Aggregation team. You will build and operate core FX trading services, leverage real-time data and design for scale in a microservices architecture across AWS and Kubernetes.

The role emphasizes ownership, collaboration with Treasury/Trading/Platform teams, and mentoring peers. A strong background in Java and distributed systems is required, with experience in finance considered beneficial.