Senior Full Stack C# .NET Developer | Commodities Trading Platform - Front office | £110–130k | Hybrid London

Location: City of London

Sector: Global Soft Commodities | Physical Trading | Front Office Technology

A Senior Full Stack C# .NET Developer is required to join a Front Office Commodities Trading technology team building a modern, proprietary trading platform.

This is a Full Stack C# .NET development role focused on replacing legacy ETRM systems with a scalable, event-driven C# .NET Core microservices architecture. The platform supports physical soft commodities trading across coffee, sugar, cocoa and grains markets, handling pricing, logistics, hedging and real-time P&L.

The firm is investing in modern Full Stack C# .NET engineering, combining backend C# .NET Core API development with React or Blazor front-end applications, deployed into a cloud-based Azure environment.

The Role – Senior Full Stack C# .NET Commodities Developer

As a Senior Full Stack C# .NET Developer within a Front Office trading environment, you will:

• Architect and develop C# .NET Core backend services supporting commodities trading workflows
• Build REST APIs and distributed microservices for trade capture, pricing and risk
• Implement event-driven architecture using Kafka or RabbitMQ
• Develop reactive front-end applications using React or Blazor
• Design and optimise SQL Server or PostgreSQL data models
• Work directly with physical commodities traders on basis trading, logistics tracking and hedging tools
• Deploy applications into Azure with modern CI/CD practices

This is a greenfield-heavy Full Stack C# .NET role offering ownership across backend architecture, API development, front-end engineering and cloud deployment.

Core Tech Stack

C#

.NET Core

Full Stack Development

REST APIs

Microservices Architecture

Event-Driven Systems

React or Blazor

SQL Server / PostgreSQL

Kafka / RabbitMQ

Azure

Python (Data Integration)

Required Experience

• Strong commercial experience with C# and .NET Core backend development
• Full Stack development experience (C# APIs + modern front-end frameworks)
• Experience within commodities trading, energy trading or financial trading systems
• Strong SQL and database design capability
• Experience building distributed, high-performance systems
• Exposure to Azure cloud environments

Senior Full Stack C# .NET Developer | Commodities Trading Platform - Front office | £110–130k | Hybrid London