Overview

Leading global trading firm seeks a Senior C# Developer to join its technology team in London. The role involves working on front-office trading systems that support physical and financial commodity desks across global markets. You will design and develop scalable, high-performance applications used daily by traders, quants, and risk analysts. The team functions in a highly agile environment, and you will contribute to both technical direction and hands-on development across critical systems.

Responsibilities

• Design, develop, and maintain enterprise-level trading applications using C#/.NET
• Build and enhance tools used by front-office trading desks across commodities markets
• Partner with traders, analysts, and other developers to gather requirements and deliver robust software solutions
• Ensure system reliability, performance, and scalability in a high-volume environment
• Contribute to architecture and design decisions, and mentor junior developers where appropriate
• Integrate with internal and external data feeds, APIs, and trading platforms
• Support modern development practices, including CI/CD and automated testing

What we\'re looking for

• 7+ years of experience in C#/.NET software development
• Experience working in a front-office or trading environment, ideally within financial services or commodities
• Strong understanding of object-oriented programming, multithreading, and performance optimisation
• Solid experience with SQL Server and messaging systems such as RabbitMQ or Kafka
• Comfortable working in a fast-paced, agile environment and engaging directly with business users
• Familiar with version control, CI/CD pipelines, and modern software development practices

Desirable Experience

• Exposure to energy or commodities markets
• Knowledge of cloud services (preferably Azure)
• Experience with scripting languages such as Python

Why Apply?

This is a fantastic opportunity to join a technology-led organisation where software development is central to business success. You’ll work alongside highly skilled professionals on complex challenges, using the latest technologies in an environment that values innovation and collaboration.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

Industries

• Software Development
• IT Services and IT Consulting
• Financial Services