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X4 Technology

Contract Rapid Application Developer (Energy)

Hybrid

London, United kingdom

Freelance

14-09-2025

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Skills

Adaptability Python C# SQL Docker Architecture angular Asp.Net SQL Server Azure Agile Pandas .NET FastAPI Terraform PostGres

Job Specifications

Role: Rapid Application Developer (RAD)

Domain: Commodities trading

Tech stack: .NET, Python, Angular, Azure

Day rate: PS950/d (inside IR35)

Location: London (hybrid - 3 days per week)

Contract: 6 months (strong extension scope)

X4 Technology are partnered with a global energy trading firm in London, offering the opportunity for a Rapid Application Developer to join one of their trading desks on a day-rate contract basis.

The RAD Developer, embedded with the desk team working closely with traders and quants, will predominantly develop in Python (position P&L tools, pricing spreadsheets), C#.NET(service development, real-time data processing, SDK implementation) and Angular (UI solutions).

The desk team has many further exciting projects in the pipeline too, focused on event-based architecture, Azure services and containerisation, so adaptability across multiple technologies is essential.

Requirements for the RAD Developer:

Front Office RAD Developer experience
Background working with commodity trading teams (physical or financial)
C#: ASP.NET Core Web API, event-based architecture
Python: FastAPI, Pandas, Numphy
Angular
Azure: Bicep / Terraform, Web App, Functions, Service Bus / Event Hubs, StorageAccount
Docker, Containerisation, K8s, Pipelines
Data: SQL Server, Postgres, Cosmos
Agile and adaptable to the fast-paced needs of a front office trading team, with the ability to quickly develop code and deliver pragmatic solutions at speed.

This is a unique opportunity to join a high-profile energy trading player, supporting a global energy portfolio. You'll play a key role in helping the desk to capture trading opportunities, optimise portfolios and create value, with significant scope for long-term extension.

First stage interviews are being scheduled for W/C 15th September, so please apply online for immediate consideration.

About the Company

X4 Technology focus on helping you succeed by connecting the right people and providing the data and insights to help execute your strategic priorities. Our consultants will help you align your people strategy to your business objectives, and guide you with simplicity through the process. Core industries: Consumer Markets, Financial Services, Healthcare, Life Sciences & Technology Get in touch to find out more: Contact@x4-technology.com United Kingdom: T: +44 2078 127 700 United States: T: (718) 360-0570 Germany: T... Know more