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Energy Trading

Mercury — CFP Energy

Mercury is CFP Energy's (www.cfp.energy) modern trading platform, built from scratch to replace their internal trading tools. Based in London, CFP Energy needed a robust, enterprise-grade application that could handle real-time commodity trading with seamless integration into existing systems like Molecule. The platform combines an Angular 19+ frontend with AG Grid for advanced trade management, real-time communication channels, batch trade processing, and SSO authentication via Azure Entra ID. Built with Kubernetes-ready deployment architecture, Mercury represents a complete modernization of CFP Energy's trading infrastructure.

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Key Outcome

Modern trading platform replacing legacy tools with real-time trade capture, batch processing, and seamless Molecule integration

Technologies Used

Frontend

Angular 19+TypeScriptAG Grid (custom components)Angular MaterialTailwind CSSNGXSMSAL Angular / Azure Entra ID SSOReal-time communicationProgressive Web App support

Backend

.NET 9ASP.NET CoreBackend-for-Frontend architectureClean Architecture / Onion ArchitecturexUnit

Integration & Messaging

Kafka / Confluent KafkaCloudEvents-style messagingSignalR notificationsMolecule REST API adapter

Data & Infrastructure

PostgreSQL.NET Aspire AppHostDocker containersKubernetes DeploymentsAzure Kubernetes ServiceAzure Database for PostgreSQLAzure Cache for RedisGitHub Actions

Developer Experience

Aspire dashboardRuntime JSON configurationFeature flagsLocal HTTPS development certificatesDocker Compose

The Challenge

CFP Energy's existing trading tools had become fragmented and inefficient. They needed a complete replacement built from scratch — a platform that could handle high-volume commodity trading with real-time updates, integrate seamlessly with Molecule (eu.molecule.io), support multiple concurrent trades with validation in AG Grid, enable batch trade submission, and maintain enterprise-grade security with Azure Entra ID SSO — all while being thoroughly tested and production-ready on Kubernetes.

Our Solution

We built Mercury from the ground up as an Angular 19+ single-page application with AG Grid at its core for advanced trade management and validation. The platform features custom AG Grid components for real-time trade capture and editing, batch trade submission capabilities, and seamless integration with CFP Energy's existing Molecule trading infrastructure. Real-time WebSocket communication keeps all traders synchronized, while Azure Entra ID provides enterprise SSO. The entire stack is containerized and deployed on Kubernetes, with comprehensive unit and E2E test coverage using Playwright to ensure reliability.

Key Features

Built from scratch specifically for CFP Energy's trading workflows

Advanced AG Grid implementation with custom components for trade capture and validation

Real-time communication — traders see updates instantly across all sessions

Multi-trade capture and validation — handle multiple trades simultaneously with inline AG Grid validation

Batch trade submission — submit multiple validated trades in one operation

Seamless Molecule integration — connect directly with CFP Energy's existing Molecule (eu.molecule.io) infrastructure

Azure Entra ID SSO authentication — secure, single sign-on access for all traders

Comprehensive test coverage — unit tests and Playwright E2E tests ensure reliability

Kubernetes-ready deployment architecture for scalable, cloud-native operation

NGXS state management for predictable application state

.NET Backend-for-Frontend for clean API abstraction

Kafka event pipeline for asynchronous trade processing and audit trails

Benefits

Complete replacement of legacy trading tools — more efficient, transparent, and flexible

Real-time collaboration — all traders work with live, synchronized data

Significantly faster trade entry and submission with AG Grid's high-performance interface

Reduced errors through inline validation before trades reach downstream systems

Batch operations save time when managing multiple trades

Seamless integration with existing Molecule infrastructure — no disruption to established workflows

Enterprise security with Azure Entra ID SSO

High confidence in production stability through comprehensive test coverage

Cloud-native architecture ready for horizontal scaling on Kubernetes

💛 What We Love About This Project

✦

Building a complete trading platform from scratch — greenfield projects are rare in enterprise finance, and this was an opportunity to do it right from the start.

✦

The custom AG Grid components we built — they handle complex commodity trading workflows that would be impossible with off-the-shelf components.

✦

Real-time collaboration working flawlessly — watching multiple traders work on trades simultaneously with instant synchronization.

✦

The comprehensive test suite — unit tests and E2E coverage with Playwright give everyone confidence in production deployments.

✦

Seamless Molecule integration — traders don't even realize they're working with two systems; it just feels like one cohesive platform.

✦

Angular 19+ features — the latest Angular gave us incredible performance and developer experience improvements.

✦

How Kubernetes deployment architecture was built-in from day one, not retrofitted later.

✦

The trust CFP Energy placed in us to replace critical trading infrastructure.

🤝 What We Appreciate About Our Client

♥

Their clear vision for what modern trading should feel like — they knew exactly what pain points needed solving.

♥

Willingness to invest in quality — comprehensive testing and proper architecture weren't negotiable, which led to a much better product.

♥

The collaborative relationship — traders and stakeholders were available for feedback, making iteration fast and focused.

♥

Trust in technical decisions — they let us choose the right tools and patterns without micromanaging implementation details.

♥

Commitment to thorough testing and reliability — in trading applications, this isn't optional, and they understood that from day one.

Challenges We Faced

Building from scratch to replace established trading tools

CFP Energy's traders relied on existing internal tools for daily operations. We needed to build a complete replacement that not only matched but exceeded the functionality of the legacy systems — all while maintaining business continuity and gaining trader trust.

Seamless Molecule integration

Connecting with Molecule (eu.molecule.io), CFP Energy's existing trading infrastructure, required deep understanding of their API contracts and careful adapter design. The integration needed to be reliable enough for production trading while keeping Mercury's core logic independent.

Custom AG Grid components for complex trade workflows

Standard AG Grid components weren't sufficient for CFP Energy's specialized trading workflows. We built custom cell editors, validators, and renderers that handle commodity-specific data types, complex validation rules, and real-time updates — all while maintaining AG Grid's performance at scale.

Real-time multi-user synchronization

Multiple traders needed to see trade updates instantly without conflicts or data loss. We implemented WebSocket-based real-time communication with optimistic UI updates, conflict resolution, and graceful degradation when connections drop.

Validating multiple trades simultaneously in AG Grid

Traders often work with dozens of trades at once. Each trade needs independent validation (price bounds, counterparty checks, settlement dates) while maintaining AG Grid's responsiveness. We built a validation pipeline that runs asynchronously without blocking the UI.

Batch trade submission with rollback capability

Submitting multiple trades as a single atomic operation required careful transaction management. If any trade in a batch fails validation or submission, the entire batch needs to roll back cleanly with clear feedback about which trades caused the failure.

Azure Entra ID SSO integration

Enterprise SSO with Azure Entra ID needed to work seamlessly in both local development and production Kubernetes environments. We implemented MSAL Angular with proper token management, silent refresh, and graceful handling of authentication failures.

Comprehensive test coverage for mission-critical trading

Trading applications demand extremely high reliability. We built extensive unit test suites with Jest and full E2E test coverage with Playwright, including critical user journeys like multi-trade capture, validation failure scenarios, and Molecule integration flows.

Kubernetes deployment architecture

The application needed to be production-ready on Kubernetes from day one. We designed the deployment architecture with health checks, rolling updates, secrets management, and horizontal pod autoscaling — all while keeping local development practical with .NET Aspire.

Photo Gallery

Mercury Trading Platform

Adding Share to Trade

Debug Tools

Trading Demo View

Add Share Error Validation

Error Message Display

Progressive Web App

Trades List View

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