Transaction & settlement for financial institutions.

Real-time processing, settlement, and reconciliation built for examination. Deployed in banks, payment processors, asset managers, and insurers.

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Overview

Transaction & settlement infrastructure for financial institutions, built to the standard institutions in this sector are required to operate.

XVICA designs, builds, and operates this layer for financial institutions clients in the UK, US, Canada, and Australia. The work is specified against the regulatory regime, the operational profile, and the examination expectations of this sector before any code is written.

01Why it matters

What financial institutions cannot get wrong here.

A mis-posting creates a regulatory exposure before it creates a customer complaint.
Unreconciled breaks at the cut-off become control findings by the next examination cycle.
Payment rail SLAs — Faster Payments, CHAPS, SEPA Instant, FedNow — leave no room for latency drift.
DORA and PS21/3 raise the bar for evidence, not just for uptime.

02Regulatory posture

Named regimes, mapped controls

Regulatory requirements are translated into explicit control requirements, then mapped to tests and evidence collection. Nothing is implied.

UK & EU

FCA operational resilience (PS21/3, SS1/21), PRA SS2/21, DORA ICT risk framework, MiFID II and EMIR transaction reporting, PSR APP reimbursement rules.

United States

SR 11-7 model risk, OFAC screening, FinCEN BSA/AML, FedNow technical requirements, NYDFS Part 500 cybersecurity.

Commonwealth

APRA CPS 230 operational risk, OSFI E-21 operational resilience, FINTRAC reporting.

03Reference architecture

Design decisions distinctive to this intersection

Components and design choices that recur across our work for this sector. Each deployment is specified individually.

Event-sourced ledger of record

Append-only, cryptographically signed log. Every balance is derived; no destructive updates.

Idempotent writes, exactly-once semantics

Client-supplied idempotency keys with replay protection across retries and partial failures.

Dual-rail connectivity

Primary and secondary rails per payment corridor, with automatic failover and evidenced parity testing.

Real-time reconciliation

Continuous matching against counterparty statements and nostro balances. Breaks surfaced inside the settlement window, not overnight.

Examination evidence at export

Signed packs by date range, rule family, and jurisdiction. Produced on demand, not assembled retrospectively.

04XVICA's approach

How we work in financial institutions.

For financial institutions, the transaction layer is the regulated system of record. We specify it that way from the first meeting. Before architecture, we establish three things: the exact rails and counterparties in scope, the regulatory regime's evidence expectations, and the traffic profile at peak rather than average. Every subsequent decision — ledger model, reconciliation cadence, retention window, recovery point objective — is traceable back to one of those three. The result is a system where the regulator's question and the engineer's log query return the same answer, and where a mis-posting is detected by the platform before it reaches a reconciler's desk. That discipline is the difference between a transaction system and a transaction system an examiner accepts.

05Engagement