Senior Software Engineer - Risk & FX

United States Digital Space LLC; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Clear ownership of your domain

Strong platform and product support

Job summary

United States Digital Space LLC is looking for a Senior Software Engineer to join the FX Routing and Aggregation team. In this role, you will be responsible for building and maintaining essential FX trading services that support clients globally. You will utilize a modern technology stack including Java, AWS, Docker, and Kubernetes.

This position offers a hybrid working environment requiring at least three days in the office. Successful candidates will have strong programming experience, ideally with microservices and cloud-native applications, and possess coaching abilities to mentor junior team members.

Qualifications

• 5+ years of software development experience.
• 2+ years of building microservices with Java.
• Experience delivering production-ready code with high quality.

Responsibilities

• Build and maintain FX trading services including pricing engines.
• Lead technical discussions around architecture and design.
• Mentor junior engineers and establish best practices.

Skills

Object-oriented programming in Java (11+)

Microservices with Java

Cloud-native applications on AWS

Experience with Docker and Kubernetes

Relational databases like MySQL

Tools

Docker

Kubernetes

ElasticSearch

Terraform

Job description

Job Description

Currencycloud was acquired by the company in December 2021. Senior Software Engineers are responsible for implementing an industry‑leading API that has processed over 50 billion USD of cross‑border transactions for more than 5 million end users, and remains available to clients 24/7. We are at the forefront of advancing the platform to meet even greater scale.

You will join the FX Routing and Aggregation (FXRA) team, which owns the core FX trading platform powering Currency Cloud’s foreign exchange capabilities. The team manages multiple microservices covering FX pricing, risk management, trade routing, market data integration, and treasury operations.

Our stack runs on AWS as a set of distributed applications using Kubernetes, with microservice‑led architecture. We also use Kafka for streaming and PACT for contract testing.

Responsibilities

• Build and maintain mission‑critical FX trading services including pricing engines, risk management systems, and market data providers.
• Work with real‑time FX market data from providers such as Barclays and JP Morgan using the FIX protocol.
• Design and implement high‑throughput, low‑latency services handling billions in FX transactions.
• Lead technical discussions around hexagonal architecture, event‑driven patterns, 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.

Benefits

• Clear ownership of your domain.
• A clean modern codebase.
• An independent path to production.
• Strong platform and product support.
• The ability to make real changes with real business value.

Technical Stack & Requirements

• Object‑oriented programming in Java (version 11+), ideally using the Spring Boot framework.
• Highly scalable, highly available cloud‑native applications on AWS, written to 12‑factor principles.
• Cloud‑related tools and services such as Docker, Kubernetes, ElasticSearch, log management systems, and Datadog APM.
• API specifications conforming to the OpenAPI (Swagger) standard.
• Large SQL databases (e.g., MySQL) for persistence; familiarity with SQL and complex queries.
• Infrastructure automation via Terraform and Docker, with knowledge of AWS.
• Testing approaches including TDD, BDD, and contract testing with frameworks such as JUnit, RSpec, and Cucumber.
• Able to work in an Agile environment following the Spotify-style Squads and Tribes model.
• Experience delivering production‑ready code with high quality and reliability.

Qualifications

• 5+ years of software development experience.
• 2+ years of building microservices with Java.
• Proficient in additional programming languages, such as Ruby or Scala.
• Working knowledge of relational databases such as MySQL.
• Experience designing event‑based and streaming solutions using Kafka.
• Experience building applications that run in Kubernetes.
• Hands‑on experience delivering high‑quality production code with a focus on testability.
• Ability to manage and work with contractors and outsourced teams.
• Experience building software for the financial domain, especially in risk.
• Agile experience and familiarity with its principles.
• Strong SQL knowledge and ability to write complex queries.
• Hands‑on experience in a DevOps environment or a passion for working in this way.
• Proven delivery of well‑tested, scalable, fault‑tolerant, and performant solutions.
• Pragmatic approach to solutions and delivery of technical projects.
• Comfortable reviewing code of peers and driving change in a distributed environment.

Work Environment

This is a hybrid position. The company requires at least three days in office, with the exact schedule confirmed by your Hiring Manager.

Equal Employment Opportunity

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability, or protected veteran status. The company will also consider qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.