Legacy Modernisation for UK FinTech — FCA COBS Built In
ClickMasters provides Legacy Modernisation for UK FinTech businesses with FCA COBS, FCA PS21/3 compliance from Sprint 1.
Key Highlights
Compliance
+3 more standards
Pricing
Legacy Modernisation for FinTech — UK Specifics
FCA Operational Resilience and Legacy Systems
FCA PS21/3 (Operational Resilience): firms must map Important Business Services (IBS) to their supporting technology and identify single points of failure. Legacy systems are the primary operational resilience risk in UK FinTech — a single-server 2008 Java application serving a critical payment IBS is an unacceptable resilience posture. Legacy modernisation as PS21/3 compliance: modernise systems that support IBSs to: multi-AZ deployment, automated failover, tested DR, and Impact Tolerance targets met.
COBOL and Legacy Mainframe to Cloud Migration
UK banking legacy: IBM zSeries mainframes running COBOL are common in the largest UK banks. ClickMasters approach: Strangler Fig for mainframe migration — new cloud services receive new traffic, legacy mainframe serves existing accounts, gradual account migration to cloud platform. COBOL knowledge transfer: document COBOL business logic (often 30+ years of encoded business rules) before migration. Never migrate COBOL without a comprehensive business logic inventory — the code is the documentation.
PCI-DSS Scope Reduction Through Legacy Migration
Legacy FinTech systems often carry legacy PCI-DSS scope: SAQ-D (all 329 requirements) because card data was processed in the application. Modernisation opportunity: migrate to Stripe Elements or Adyen Drop-In — card data never touches the new system (SAQ-A: 22 requirements). Legacy migration + PCI scope reduction: dual benefit that reduces both operational risk and annual PCI compliance cost (SAQ-D compliance: £15,000–£80,000/year; SAQ-A: £2,000–£8,000/year).
FCA Consumer Duty Debt in Legacy Systems
FCA Consumer Duty (PS22/9) requires: consumer understanding testing evidence, value assessment data, complaint root cause analysis, and vulnerable customer identification. Legacy FinTech systems: often cannot produce these reports without manual extraction. Consumer Duty debt: inability to produce Board-level Consumer Duty reports from automated data is a regulatory risk — FCA expects firms to demonstrate Consumer Duty outcomes. Legacy modernisation to include Consumer Duty reporting as a Day 1 requirement.
Compliance
FCA COBS
FCA PS21/3
Consumer Duty
PCI-DSS
UK GDPR
Cyber Essentials
ISO 27001
Compliance & Regulations
Every solution we build for this industry is designed to meet the following regulatory and standards requirements.
FCA COBS
FCA PS21/3
Consumer Duty
PCI-DSS
UK GDPR
Cyber Essentials
ISO 27001
Investment Options
Flexible engagement models tailored to your fintech project requirements.
£35,000–£200,000
Full engagement
- Industry-specific approach
- UK GDPR compliant
- Dedicated technical lead
£3,500–£8,000
Scoping
- Industry-specific approach
- UK GDPR compliant
- Dedicated technical lead
from £2,000/mo
Ongoing support
- Industry-specific approach
- UK GDPR compliant
- Dedicated technical lead
What Our Clients Say
Success stories from clients in fintech industry.
“ClickMasters transformed our digital infrastructure. Their understanding of UK fintech regulations saved us months of compliance work.”
Sarah Mitchell
CTO, FinTech Solutions Ltd
“The team's expertise in NHS integrations and DTAC compliance was invaluable. They delivered on time and within budget.”
Dr. James Cooper
Medical Director, HealthFirst UK
“Their grasp of FCA requirements and insurance sector nuances helped us launch our platform 40% faster than expected.”
Michael Brooks
CEO, InsureTech Pro
Frequently Asked Questions
Common questions about fintech software development.
How do we prioritise FinTech legacy modernisation for FCA compliance?
FCA priority order for UK FinTech legacy modernisation: (1) Operational resilience (PS21/3): systems supporting Important Business Services with Impact Tolerance risk. (2) Consumer Duty: systems that cannot produce Consumer Duty outcome data — regulatory reporting risk. (3) PCI-DSS scope: systems with unnecessary PCI scope — annual compliance cost reduction. (4) Technical debt: systems slowing feature velocity. ClickMasters scopes FinTech legacy modernisation with FCA compliance as the primary driver.
Can FinTech legacy modernisation be done without downtime?
Yes — for most FinTech legacy systems. ClickMasters Strangler Fig approach: new system receives new traffic from Day 1, legacy system serves existing customers (no migration needed initially), gradual migration of existing customers to new system, legacy decommissioned when last customer migrated. Payment systems: blue-green deployment with traffic shifting — zero-downtime migration. The legacy system runs until it is not needed, then decommissioned safely.
Related fintech Services
FinTech Software Development UK — FCA, Open Banking & Regulated FinTech Builds
Custom Software Development for UK FinTech Companies — FCA Compliant
MVP Development for UK FinTech Companies — FCA Sandbox Compliant
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