The Challenge
A mid-market trading group had grown by acquisition across South Asia, the Gulf, and the European Union. Each region ran its own order-management tool, banking integration, and compliance spreadsheet. Eleven systems in total, none of which agreed with the others. Closing the books took three weeks, every cross-border shipment required manual sanctions checks, and no executive could answer a simple question — *what is our real-time exposure by counterparty?* — without a week of analyst work.
The fragmentation was not just inconvenient; it was a compliance risk. Manual screening missed updates to sanctions lists, and reconciliation gaps meant settlement discrepancies were discovered weeks after the fact. The group needed a single, auditable execution layer — the problem the Baalvion Operating System was built to solve.
The Solution
We consolidated all eleven systems onto one multi-tenant platform with a single canonical identity, one shared ledger, and a unified compliance engine. Rather than forcing a risky overnight migration, we ran the new platform in parallel with the legacy estate, moving one trade corridor at a time and reconciling both until the numbers matched exactly.
- One identity: every user, organisation, and counterparty modelled once, with role-based access.
- One ledger: a double-entry general ledger that records every state change as a balanced transaction.
- One compliance engine: automated, real-time sanctions and risk screening drawing on our AI compliance scoring capability.
- One API surface: a governed gateway so the group's downstream tools read from a single source of truth.
Architecture
The platform is built as a set of multi-tenant services with strict row-level isolation, so each subsidiary's data stays logically separated while sharing one operational backbone. An event-driven core publishes every change — an order placed, a payment cleared, a shipment milestone reached — onto a durable stream, which the ledger, compliance engine, and reporting layer all consume independently. This is the same scalable approach described in how Baalvion builds scalable software.
Technology Stack
Multi-tenant PostgreSQL with row-level security for tenant isolation, an event-streaming backbone for change propagation, a double-entry ledger service for financial integrity, an API gateway for governed access, and the Baalvion AI compliance engine for real-time screening. Our broader approach is covered in enterprise software and cloud solutions.
Results
Within two quarters the group retired all eleven legacy systems. Reconciliation that once took three weeks now completes in under two days, audit preparation dropped from days to hours, and cross-border clearing accelerated by roughly 40%. Most importantly, leadership gained a live, single view of exposure across every jurisdiction.
Lessons Learned
Consolidating identity first removed most of the downstream integration friction. The double-entry ledger paid for itself the first time a settlement dispute was resolved in minutes instead of days. And the parallel-run cutover, while slower, kept a regulated business safe throughout the transition — a pattern we reuse in every legacy system migration.