Contract Full Stack Engineer (Commodities) in London
Contract Full Stack Engineer (Commodities)

Contract Full Stack Engineer (Commodities) in London

London Freelance Home office (partial)
X4 Technology

At a Glance

  • Tasks: Develop scalable trading applications and real-time data services for a global commodities firm.
  • Company: Join a leading energy trading company with a focus on innovation.
  • Benefits: Competitive daily rate, hybrid work model, and potential for contract extension.
  • Other info: Dynamic role with opportunities for career growth in a high-performance environment.
  • Why this job: Make an impact in the fast-paced world of commodities trading and analytics.
  • Qualifications: Strong skills in React, Python, and experience with cloud technologies.

Project: Front Office Trading applications

Industry: Energy trading & commodities

Location: London (hybrid 3 days per week)

Contract: 6 month initial contract (multiyear scope)

Rate: £850-900/d (inside IR35)

X4 Technology is partnered with a global commodities trading firm building next-generation trading and market intelligence platforms. They are seeking a Contract Full Stack Engineer to develop scalable front-office trading, analytics and real-time data services.

You will play a key role in the development of a real-time, event-driven position visualisation and P&L reporting platform used across multiple trading desks covering commodities including Power, Natural Gas, LNG, Carbon and Interconnectors. Working closely with traders, middle office and wider business stakeholders, you will help deliver mission-critical analytics that directly support trading and risk decision-making.

The role involves building and enhancing low-latency data pipelines processing events from OpenLink Endur ETRM, leveraging technologies such as Kafka, Azure Databricks, and Apache Pinot. You will design and implement scalable services for data sanitisation, aggregation, and filtering, enabling highly configurable views across Gas Position, P&L, price exposure, FX exposure, and other key trading metrics.

You will also contribute to delivering robust end-to-end testing strategies across systems and ensure functional, non-functional, and data quality requirements are consistently met to the highest standards in a high-performance trading environment.

Requirements for the Contract Full Stack Engineer (Commodities):

  • Strong frontend development experience with React and TypeScript
  • Advanced Python expertise including OOP, async programming, and frameworks such as FastAPI, Flask, or Django
  • Proven experience building and integrating RESTful and GraphQL APIs
  • Understanding of Backend-for-Frontend (BFF) architecture patterns
  • Experience optimising low-latency, high-throughput systems through caching, async I/O, and database tuning
  • Cloud and DevOps experience with Docker, CI/CD pipelines, and AWS or Azure deployments
  • Strong knowledge of distributed systems, microservices, and scalable architecture design

This is an initial 6-month contract supporting a long-term multi-year trading technology programme, offering strong extension potential. X4 Technology has an established relationship with the client and has successfully placed over 150 contractors across the business to date.

Interview slots are being scheduled from the week commencing 11th May, with quick turnaround and immediate start availability preferred. Apply now for immediate consideration.

Contract Full Stack Engineer (Commodities) in London employer: X4 Technology

Join a leading global commodities trading firm in London, where you will be at the forefront of developing innovative trading and market intelligence platforms. With a strong focus on employee growth and a collaborative work culture, this role offers the opportunity to work alongside industry experts while enjoying the benefits of a hybrid working model. The company values your contributions and provides a dynamic environment that fosters creativity and excellence in the fast-paced energy trading sector.
X4 Technology

Contact Detail:

X4 Technology Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Contract Full Stack Engineer (Commodities) in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the commodities and energy trading sectors. Attend industry meetups or webinars, and don’t be shy about introducing yourself. You never know who might have the inside scoop on job openings!

✨Tip Number 2

Prepare for those interviews! Research the company and their trading applications thoroughly. Be ready to discuss how your skills in React, Python, and cloud technologies can directly impact their trading desks. Show them you’re not just another candidate, but the perfect fit!

✨Tip Number 3

Don’t forget to showcase your projects! If you’ve built any relevant applications or systems, make sure to highlight them during your discussions. Real-world examples of your work with low-latency systems or data pipelines can really set you apart from the competition.

✨Tip Number 4

Apply through our website! We’ve got a direct line to the hiring managers, which means your application gets seen faster. Plus, we’re here to support you throughout the process, so don’t hesitate to reach out if you need any help!

We think you need these skills to ace Contract Full Stack Engineer (Commodities) in London

Frontend Development
React
TypeScript
Python
Object-Oriented Programming (OOP)
Asynchronous Programming
FastAPI
Flask
Django
RESTful APIs
GraphQL APIs
Backend-for-Frontend (BFF) Architecture
Low-Latency Systems Optimisation
Caching
Async I/O
Database Tuning
Cloud Experience
DevOps
Docker
CI/CD Pipelines
AWS
Azure
Distributed Systems
Microservices
Scalable Architecture Design

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the role of Contract Full Stack Engineer. Highlight your experience with React, TypeScript, and Python, as well as any relevant projects in energy trading or commodities. We want to see how your skills match what we're looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your background makes you a perfect fit. Don’t forget to mention your experience with low-latency systems and cloud technologies – we love that stuff!

Showcase Your Projects: If you've worked on any relevant projects, make sure to showcase them in your application. Whether it's building APIs or optimising data pipelines, we want to see concrete examples of your work that demonstrate your expertise in the field.

Apply Through Our Website: We encourage you to apply through our website for the best chance of getting noticed. It’s quick and easy, and ensures your application goes straight to the right people. Don’t miss out on this opportunity – hit that apply button!

How to prepare for a job interview at X4 Technology

✨Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, like React, TypeScript, and Python. Brush up on your knowledge of low-latency systems and cloud services, as these will likely come up during technical discussions.

✨Understand the Business Context

Familiarise yourself with the commodities trading industry and the specific challenges traders face. This will help you demonstrate how your skills can directly support trading and risk decision-making, making you a more attractive candidate.

✨Prepare for Scenario-Based Questions

Expect to be asked about real-world scenarios related to building scalable services and optimising performance. Think through examples from your past experience where you’ve successfully tackled similar challenges, and be ready to discuss them in detail.

✨Showcase Your Collaboration Skills

Since you’ll be working closely with traders and other stakeholders, highlight your experience in cross-functional teams. Be prepared to discuss how you’ve effectively communicated technical concepts to non-technical team members in previous roles.

Contract Full Stack Engineer (Commodities) in London
X4 Technology
Location: London

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