Senior Backend Engineer – Platform Modernisation (Java/.NET)

The London Metal Exchange; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

The London Metal Exchange in London is seeking a Senior Engineer to join the new technology team supporting the SPM program, delivering production-grade services and APIs.

You will design, build, and optimize backend services, collaborate with product, operations and vendors, and champion automated testing, CI/CD and observability to ensure reliable, scalable platform delivery. This critical role requires strong Java/.NET skills and experience in financial services environments.

Qualifications

• Bachelor's degree in Computer Science or related field, or equivalent practical experience.
• Significant hands-on experience delivering production-grade applications.
• Strong Java application engineering experience, ideally with modern enterprise Java frameworks.
• Experience in financial services or regulated environments.
• Proven ability to lead in agile, cross-functional teams.

Responsibilities

• Design, build, and improve modern application services that support a strategic business platform, focusing on quality, maintainability, and performance.
• Develop backend services and APIs supporting evolution of core business capabilities from established platforms into modern services.
• Contribute to modern internal and customer-facing user experiences, delivering intuitive, secure, browser-based solutions.
• Partner with product teams, operations, and business stakeholders to translate requirements into robust engineering solutions.
• Apply strong engineering practices including automated testing, peer review, continuous integration and deployment, and high-quality technical documentation.
• Help ensure services are observable, supportable, and reliable in production through effective logging, monitoring, and operational diagnostics.
• Work closely with platform and vendor teams to align engineering delivery with enterprise standards and runtime patterns.
• Contribute to continuous improvement of engineering practices, platform capability, and team effectiveness.

Skills

Java

.NET

Python

API design

CI/CD

Linux

Agile

Leadership

Education

Bachelor's degree in Computer Science or related field

Equivalent practical experience

Tools

Docker

Kubernetes

Terraform

Helm

Git

Prometheus

Job description

The London Metal Exchange in London is seeking a Senior Engineer to join the new technology team supporting the SPM program, delivering production-grade services and APIs.

You will design, build, and optimize backend services, collaborate with product, operations and vendors, and champion automated testing, CI/CD and observability to ensure reliable, scalable platform delivery. This critical role requires strong Java/.NET skills and experience in financial services environments.