Systemic Fragility in a National Fuel Network
Astron Energy's national fuel network ran on a legacy Transaction System (TRACS) that had become a point of systemic fragility. The platform underpinned every fuel transaction across the merchant network, and replacing it required surgical precision.
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Decades of accumulated state. Sensitive customer balances and transaction records spanning years of continuous operation, all requiring validated migration with zero data loss.
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Complex business logic requiring 100% accurate replication. The existing system encoded years of business rules around transaction validation, fuel repricing, and merchant routing. Every rule had to be preserved exactly.
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Critical SAP and banking system integrations. Upstream ERP and downstream banking connections processed real financial data in real time. These integrations could not be disrupted during transition.
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Zero-downtime requirement. Fueling services across the national merchant network could not be interrupted. The switch had to be invisible to every station and every customer.
Deconstruct a rigid, vendor-locked legacy environment and replace it with a modular, maintainable architecture. Bridge high-velocity fueling transactions with the rigour of enterprise financial systems, without a single second of service interruption.
Rebuilt from First Principles on Mendix
Modular Transaction Architecture
High-performance architecture with distinct, independently testable layers for transaction validation, fuel repricing, and merchant routing. Each layer operates with clear contracts, enabling targeted updates without system-wide risk.
Enterprise Integration Layer
Seamless real-time integration with SAP ERP for financial reconciliation and global banking frameworks for payment settlement. Bidirectional data flows maintain consistency across all connected systems.
Proprietary Migration Suite
Purpose-built migration tooling for validated transition of all customer balances and transaction histories. Every record was verified against source data before, during, and after migration.
Zero-Downtime Cutover
Parallel operation strategy allowing the new system to shadow the legacy platform before a controlled, verified switchover. No merchant experienced any service interruption.
Operational Results
Every customer balance migrated and verified across the national network
Continuous fueling operations maintained throughout the migration
Continuous error-free operation from launch to present
Significant reduction in ongoing maintenance overhead versus legacy
Demonstrates that well-architected low-code can power national infrastructure
Platforms & Integrations
Built for What's Next.
Engineering mission-critical systems that operate at national scale.
If your infrastructure demands zero-downtime reliability, let's talk.