Core architecture
Separate the trading platform, customer systems, execution connectivity, infrastructure and operational tooling into clear domains with documented ownership.
Trading platform layer
Define platform scope, products, account structures, permissions and integration boundaries before connecting downstream applications.
CRM and client cabinet
Map lead management, onboarding, KYC, account provisioning, funding workflows, IB relationships and customer support to explicit systems of record.
Liquidity and execution
Document price sources, routing, execution states, reconciliation and connectivity health. Native MT5 liquidity options can reduce external components in some architectures, while other models may still use gateways, bridges or aggregators.
Risk and operations
Provide exposure visibility, role-based permissions, alerts, incident procedures and auditability for high-impact changes.
Hosting and observability
Design for availability, secure access, dependency monitoring, backups and tested recovery procedures.
Integration governance
Use documented APIs, controlled credentials, versioned contracts, reconciliation and regression tests so the stack can evolve safely.