Modernise your core. Without rebuilding everything.
Legacy core banking systems are expensive to maintain and slow to change. Techvica runs alongside your existing stack as a composable layer - adding modern payment rails, digital account structures, and APIs while your mainframe does what it does best.
60%
faster time-to-market for new products
0
forced migrations - coexistence model
14+
years average regulatory experience in our team
ISO 20022
native compliance, no conversion needed
The coexistence model. Not rip-and-replace.
Full core replacements fail more often than they succeed. They take years, cost multiples of the original budget, and carry existential risk for the institution.
Techvica operates as a composable layer alongside your existing core. You deploy modern capabilities incrementally - new products, new rails, new digital channels - without touching what currently works.
Architecture overview
Modernisation in phases. No single point of failure.
Phase 1
4–6 weeksAPI gateway layer
Deploy a bridge between your core and the modern world. Start receiving ISO 20022 messages, exposing REST endpoints, and logging all events - without touching your mainframe.
Phase 2
8–12 weeksParallel ledger
Run a second, real-time ledger alongside your existing system. Validate reconciliation in parallel before cutting over. Zero-risk data integrity verification.
Phase 3
12–20 weeksProduct layer migration
Move new products onto Techvica first - digital onboarding, new account types, or new payment rails. Your mainframe handles what it always has.
Phase 4
VariesFull modernisation (optional)
For institutions ready to fully migrate: a structured, validated cutover with full data portability and rollback capability at every stage.
Infrastructure built for institutional requirements.
Core coexistence
Techvica operates alongside your existing core banking system - not instead of it. Gradual modernisation with zero forced migration.
ISO 20022 native
Full compliance with the global financial messaging standard. Accept and emit ISO 20022 messages without re-engineering your internal systems.
Parallel ledger reconciliation
Run Techvica's always-balanced Ledger Core in parallel with your existing records. Validate before committing. No big-bang migrations.
Regulatory reporting
Pre-built reporting frameworks for PRA, ECB, and Federal Reserve submissions. Automated data extraction, structuring, and export.
API bridge
A modern REST API layer over legacy systems. Expose your core's capabilities to internal teams and third-party integrations without touching the mainframe.
Institutional security
SOC 2 and PCI readiness support, documented controls, custom data residency, and a named security contact for your team.
Built for institutions that cannot afford to get it wrong.
Our team includes former regulators, infrastructure engineers from Tier 1 banks, and compliance architects who have navigated FCA, PRA, and ECB scrutiny firsthand.
Meridian Bank
Parallel ledger for new mortgage products
Hartwell Financial
ISO 20022 migration and API bridge
Castleford Mutual
Digital onboarding layer over legacy core
Certifications your board and regulators require.
Techvica is built to support serious security review and governance workflows. Custom data residency across EU, UK, US, Australia, and New Zealand-aligned deployments. Named security contacts. Full audit trail export for regulatory submissions.
View all certificationsConnect bank modernisation to the platform
Core banking platform UK
Review the platform page focused on UK-first core banking evaluation.
Ledger Core
See how parallel financial records and reconciliation can support staged migration.
Security & Compliance
Review governance and assurance information relevant to bank modernisation programmes.