Transaction & Settlement Systems.
Core transaction and settlement infrastructure for regulated financial institutions. Built for audited operation, high volumes, and unforgiving reconciliation.
Overview
A transaction and settlement system is the ledger of record for every movement of value across an institution.
XVICA designs, builds, and operates that layer for banks, payment processors, asset managers, and insurers. The work covers real-time processing, end-of-day settlement, multi-party reconciliation, multi-currency handling, fraud screening, and regulatory reporting that holds up under examination. Every system is specified against the client’s compliance regime, traffic profile, and counterparty obligations before a line of code is written, so what goes into production is auditable and operable on day one.
Breaks are unacceptable. The standards keep rising.
Transaction failure is not a technical inconvenience. A mis-posting creates a regulatory exposure; an unreconciled break triggers a control finding; a settlement delay erodes counterparty credit. The regimes that govern payment and market infrastructure (DORA, PSR, the FCA’s operational resilience rules, PS21/3, MiFID II transaction reporting, and their peer frameworks in the US, Canada, and Australia) have compressed the acceptable tolerance for error and extended the evidence required to demonstrate compliance.
The institutions that get this right treat the transaction layer as a regulated system in its own right: designed with auditability, monitored continuously, and evidenced on demand. The ones that struggle are running adequate systems for yesterday’s volumes and today’s attention from examiners.
What we build
Components are specified individually and delivered as a single platform. Deployments are tailored to traffic profile, counterparty set, and regulatory regime.
Real-time transaction processing
Sub-100ms end-to-end with idempotent writes, exactly-once semantics, and guaranteed delivery under partial failure.
Immutable audit trail
Cryptographically signed, append-only transaction logs with full lineage and examiner-ready export.
Settlement engine
Automated multi-party reconciliation, exception handling, and break resolution workflows tied to the underlying ledger.
Multi-currency and FX
Native multi-currency ledger with real-time FX integration, currency-aware reconciliation, and cross-border netting.
Fraud and AML screening
Real-time transaction screening against sanctions lists, behavioural models, and rule-based typologies with case management.
Regulatory reporting
Automated production of MiFID II, EMIR, CFTC, and jurisdiction-specific reports from live ledger data, signed at export.
How we build transaction systems
Systems are specified and built for production from the outset. The design assumes independent oversight, audit, and the need to evidence control effectiveness over time rather than once at launch.
Architecture and specification
Detailed analysis of transaction flows, volume projections, compliance obligations, and integration points. Every edge case and counterparty constraint is documented before code is written.
Build with auditability
Logging, monitoring, and reporting infrastructure is built in parallel with core transaction logic. Controls are written as engineering artefacts in their own right, rather than retrospective documentation.
Load testing and certification
Systems are stressed well beyond projected volumes. We work with your compliance and internal audit teams to document controls and obtain necessary certifications ahead of launch.
Production and operation
Gradual migration with reversible cutover. We operate alongside your teams until full handover under Build-Operate-Transfer, or provide ongoing managed operations under Platform Adoption.
Technical standards
99.99% uptime SLA
High availability with automatic failover and regional isolation.
Sub-100ms end-to-end latency
Measured at p99 under peak load, not average under idle.
Immutable audit logs
Append-only, cryptographically signed, queryable by lineage.
SOC 2 Type II aligned
Control framework mapped to SOC 2, ISO 27001, and PCI-DSS from specification.
Multi-region deployment
Data residency and disaster recovery across jurisdictions.
FIPS 140-2 cryptography
HSM-backed key management with documented rotation and recovery.
What these systems look like in production
Three representative deployments. Specific client references are covered under NDA during briefings.
Cross-border card settlement at scale
A payment processor operating across eleven jurisdictions needed real-time authorisation, network integration, merchant settlement, and reconciliation against card networks. The deployed system handles tens of millions of daily transactions with end-to-end auditability and automated reporting to the acquiring banks.
Trade settlement and NAV
An asset manager with multi-strategy funds needed trade capture, settlement against prime brokers, intraday position reconciliation, and daily NAV calculation. Breaks are surfaced during the settlement window with full lineage, reducing the T+1 exception workload by an order of magnitude.
Faster Payments and SEPA Inst
A specialist bank entering real-time payments needed dual-rail connectivity to Faster Payments and SEPA Instant, fraud screening at sub-second latency, and regulatory reporting to the FCA and Central Bank of Ireland. The platform went live with full monitoring and examiner-ready evidence on day one.
Operational discipline
Full observability
Real-time dashboards, alerting, and anomaly detection across every transaction flow.
Security first
Encryption at rest and in transit, defence in depth, and independent penetration testing.
Regulatory ready
Examination-ready documentation, evidence packs, and controls held to institutional audit standards.
Resilience built in
Automatic recovery, graceful degradation, and tested disaster recovery procedures.
Built for complexity
Our transaction infrastructure runs across regulated sectors where precision is non-negotiable.
Financial Institutions
Banks, asset managers, payment processors, and insurers operating under FCA, PRA, and equivalent regimes.
Read onEnterprise
Large corporates with treasury, intercompany settlement, and regulated commercial payment flows.
Read onPublic Sector
Government bodies running benefits, grants, and central-government payment rails.
Read onHealthcare
Health insurers and providers reconciling claims, premiums, and provider disbursements at scale.
Read onTransaction & settlement systems
The questions that come up most often during briefings.
What does a transaction and settlement system from XVICA include?
A typical deployment covers real-time transaction processing, immutable audit trails, a settlement engine with multi-party reconciliation, multi-currency and FX integration, fraud screening, and automated regulatory reporting. Each component is specified against your compliance regime and transaction profile before implementation.
Which regulated environments do you build for?
We build for banks, payment processors, asset managers, and insurers operating under FCA, PRA, DORA, MiFID II, PCI-DSS, and comparable regimes across the UK, US, Canada, and Australia. Every system is specified with examination readiness and control evidence as a first-class requirement.
How do you guarantee reconciliation integrity?
All ledger writes are idempotent, signed, and appended to immutable logs. End-of-day and intraday reconciliation runs against independent counterparty statements and nostro balances. Breaks are surfaced in real time with full transaction lineage for investigation.
What throughput and latency do your systems support?
Reference deployments sustain sub-100ms end-to-end latency at tens of thousands of transactions per second, with horizontal scale to handle peak loads well above projected volume. Specific targets are set against your traffic profile during specification.
Can XVICA operate the system after launch, or do you transfer it?
Both models are supported. Under Platform Adoption or Co-Build + Operate, XVICA runs the platform under SLA. Under Build–Operate–Transfer, we design, build, and operate the system to a specified maturity threshold before handing it over with documentation and runbooks.
Related reading: regulatory & compliance engines, integration fabrics, and our Build–Operate–Transfer engagement model.
Transaction infrastructure for high-volume, regulated operations.
Request a confidential briefing to discuss your transaction system requirements. We assess fit and outline how XVICA can support your objectives.
Talk to sales