Full Stack Developer - London - Energy Trading

Aubay UK; Greater London; On-site; GBP 100,000 - 135,000; Full time

Job summary

Aubay UK is seeking a Senior Full-Stack Developer (AI & Data Platforms) to join a high-performing team building modern, scalable, data-driven applications within a Trading & Supply environment.

This hands-on role requires strong front-end and back-end expertise across React, TypeScript, Azure, Databricks, .NET, and Python, with opportunities to work on Generative AI, LLMs, and AI-assisted software engineering. You will mentor engineers and help set technical standards.

Qualifications

• Experience building production applications using React and TypeScript.
• Strong back-end development with .NET/C# and/or Python.
• Hands-on experience with Microsoft Azure and Databricks.
• Experience with AI-enabled or agentic applications.
• Designing secure REST APIs and enterprise integrations.
• Experience with CI/CD pipelines and automated testing.

Responsibilities

• Design, develop, test, and support modern full-stack applications using React, TypeScript, .NET, and/or Python.
• Build and maintain secure APIs, integrations, and data-driven services leveraging Azure and Databricks.
• Develop AI-enabled capabilities using LLMs, Generative AI, and agentic patterns.
• Collaborate with product owners and engineers to deliver business-focused solutions.
• Drive CI/CD pipelines, automated testing, and cloud deployment.

Skills

React

TypeScript

.NET/C#

Python

Azure

Databricks

OpenAI/LangChain

REST APIs

SQL

CI/CD

GitHub Copilot

Tools

Azure Databricks

Git

Job description

Aubay UK is seeking an experienced Senior Full-Stack Developer (AI & Data Platforms) to join a high-performing application development team responsible for building modern, scalable, data-driven applications within a complex Trading & Supply environment.

This is a hands-on engineering role requiring strong expertise across both front-end and back-end development, with particular focus on React, TypeScript, Azure, Databricks, .NET and/or Python. The successful candidate will work across the full software development lifecycle, from requirements gathering and solution design through to development, deployment, production support, and continuous improvement.

The role also offers the opportunity to work with modern AI technologies, including Generative AI, Large Language Models (LLMs), AI-assisted software engineering, and agentic application patterns. As a senior member of the team, you will contribute to technical strategy, mentor engineers, and help establish best practices across application development, AI engineering, and cloud-native delivery.

Required Skills and Experience:

• Strong commercial experience developing production applications using React and TypeScript
• Strong back-end development experience using .NET/C# and/or Python
• Hands-on experience with Microsoft Azure
• Hands-on experience with Databricks and data platform integrations
• Experience with both .NET and Python development
• Experience building AI-enabled or agentic applications
• Experience with Azure AI Services, OpenAI, LangChain, or similar platforms
• Experience designing and developing secure REST APIs and enterprise integrations
• Strong understanding of SQL, relational databases, and data-intensive applications
• Experience with Git-based development practices, automated testing, and CI/CD pipelines
• Experience using GitHub Copilot or similar AI-assisted development tools
• Understanding of Generative AI, Large Language Models (LLMs), and AI-enabled application patterns
• Experience contributing to technical design, architecture discussions, and production support
• Strong communication, problem-solving, and stakeholder engagement skills

Desired Skills and Experience:

• Experience with Retrieval-Augmented Generation (RAG), vector search, and AI observability
• Experience with microservices, event-driven architectures, or serverless technologies
• Experience with Docker and Kubernetes
• Experience with infrastructure-as-code and cloud automation practices
• Experience within commodities trading, analytics, data, or complex enterprise environments
• Experience mentoring engineers and supporting technical leadership activities
• Experience with GraphQL and modern API design approaches

Roles and Responsibilities:

• Design, develop, test, and support modern full-stack applications using React, TypeScript, .NET, and/or Python
• Build and maintain secure APIs, integrations, and data-driven services leveraging Azure and Databricks
• Develop AI-enabled application capabilities using LLMs, Generative AI, and agentic application patterns where appropriate
• Collaborate with Product Owners, business stakeholders, architects, data engineers, and developers to deliver business-focused solutions
• Translate business requirements into scalable, maintainable, and secure technical designs
• Contribute to application architecture, technical decision-making, and engineering best practices
• Build and maintain CI/CD pipelines, automated testing, and cloud deployment solutions
• Monitor, troubleshoot, and optimise application performance, reliability, and operational supportability
• Promote high standards of code quality, security, documentation, and software engineering practices
• Mentor junior engineers through code reviews, technical guidance, and knowledge sharing
• Drive continuous improvement across application development, cloud engineering, and AI-enabled software delivery

About Aubay UK – Ahead of Innovation!

Aubay UK is a recognised InSourcing Partner for client-side deployment delivered across London. Our team, based in Canary Wharf, specialises in hiring IT professionals within London’s Energy and FinTech sectors, helping our clients to expand their operations with top-tier talent who are experts in their fields. We work exclusively with clients who are globally recognized as Energy Super Majors/Financial Services and innovative FinTech players.

Aubay UK is the most recently started branch of Aubay Group www.aubay.com. Aubay Group is an international Digital Services Company, listed on a Euronext Stock Exchange, who have been operating for 25 years in the European market and working alongside some of the biggest names in the Banking, Finance, Insurance, Energy, IT/Digital, Manufacturing, Transport and Telecoms sectors. With over 7,800 employees across 7 countries and 16 offices in England, France, Belgium, Luxembourg, Italy, Spain, and Portugal, Aubay Group generated revenues of €534 million in 2023.

Our Client

Our client is one of the Super Major global energy companies with around 84,000 employees across 70+ countries who are working to power progress through cleaner energy solutions.

Specialities: Upstream/Downstream, Biofuels, Integrated Gas, New Energies, Chemicals, Energy and Trading.

You will have the opportunity to work in a challenging but rewarding environment that is fast-paced and changing fundamentally and work towards transforming the business of a Super Major energy company to meet the ambition to be a net-zero emissions energy business by 2050 whilst delivering a world-class business case that has a robust societal license to operate. In your role, you will be expected to enact change and deliver value globally across business lines and geographies.