Legacy App Modernization in London, UK
ZTABS delivers professional legacy app modernization for London businesses — including incremental modernization, business logic preservation, data migration. Serving Finance & Fintech, Media & Entertainment, HealthTech companies in London, UK.
ZTABS provides legacy app modernization services in London, UK — including incremental modernization, business logic preservation, data migration, and more. We work with London businesses across Finance & Fintech, Media & Entertainment, HealthTech using technologies like Next.js, React, Node.js.Get a free consultation →
Legacy App Modernization Capabilities for London
Our legacy app modernization team delivers a full range of capabilities tailored to London's Finance & Fintech and Media & Entertainment sectors:
- ✓Incremental Modernization
Modernize one module at a time — reducing risk, delivering value early, and keeping the business running throughout.
- ✓Business Logic Preservation
We extract and document the business rules embedded in legacy code so nothing gets lost in the new system.
- ✓Data Migration
Migrate from legacy databases (Access, FoxPro, SQL Server) to modern PostgreSQL or cloud-managed databases.
- ✓API Layer Design
Build modern REST or GraphQL APIs that let the new system talk to legacy components during the transition period.
- ✓Automated Testing
Create comprehensive test suites that verify the new system behaves identically to the old one for every critical workflow.
- ✓Cloud Deployment
Deploy the modernized application on AWS, Azure, or Vercel with CI/CD pipelines, monitoring, and auto-scaling.
Our Legacy App Modernization Process
Each phase includes clear deliverables and London stakeholder reviews. See our full process →
Tech Stack for London Legacy App Modernization Projects
Why London Businesses Choose ZTABS for Legacy App Modernization
London (the fintech capital of Europe, population 9 million) is home to thriving Finance & Fintech, Media & Entertainment, HealthTech sectors — each with distinctlegacy app modernization needs. Financial institutions require complex regulatory-compliant systems, real-time trading platforms, and secure payment infrastructure. Media and entertainment companies need streaming platforms, content management systems, and audience analytics. HealthTech companies need HIPCC-compliant solutions and integration with NHS systems. E-commerce businesses require scalable marketplaces and omnichannel retail technology.
London is Europe's undisputed fintech capital, hosting over 2,500 fintech companies and major hubs for global banks like HSBC, Barclays, and Lloyds. The city attracts more tech investment than any other European city, with strength in financial services innovation, AI, and enterprise software. Tech City and Canary Wharf anchor a diverse ecosystem spanning finance, media, and health technology.
Access to Europe's largest financial services sector, world-class universities (Imperial, UCL, LSE), and a regulatory environment that has supported fintech innovation. Brexit has reshaped some dynamics, but London remains the gateway for US and Asian companies entering European markets. The government's tech visa schemes continue to attract global talent.
Legacy App Modernization for London's Key Industries
Each of London's core sectors has specific legacy app modernization requirements. We build solutions tailored to these industry needs:
Finance & Fintech
London's finance & fintech companies need specialized legacy app modernization that addresses sector-specific compliance, integrations, and workflow requirements.
Legacy App Modernization for Finance →Media & Entertainment
London's media & entertainment companies need specialized legacy app modernization that addresses sector-specific compliance, integrations, and workflow requirements.
HealthTech
London's healthtech companies need specialized legacy app modernization that addresses sector-specific compliance, integrations, and workflow requirements.
E-commerce
London's e-commerce companies need specialized legacy app modernization that addresses sector-specific compliance, integrations, and workflow requirements.
Legacy App Modernization for E-commerce →How We Work With London Businesses
Our distributed engineering team delivers the same quality and responsiveness as a local partner. Access to Europe's largest financial services sector, world-class universities (Imperial, UCL, LSE), and a regulatory environment that has supported fintech innovation. Brexit has reshaped some dynamics, but London remains the gateway for US and Asian companies entering European markets. The government's tech visa schemes continue to attract global talent.
Timezone-Aligned Availability
Our team schedules overlap with London's your local time business hours for real-time standups, reviews, and demos.
Dedicated Project Manager
A single point of contact who understands your business context and London's market.
Transparent Communication
Daily async updates, weekly video calls, and shared project boards keep you informed at every stage.
Built for London's Industries
We understand London's key sectors — Finance & Fintech, Media & Entertainment, HealthTech — and build solutions tailored to their requirements.
Frequently Asked Questions
Common questions about legacy app modernization in London
We offer end-to-end legacy app modernization for London businesses: incremental modernization, business logic preservation, data migration, api layer design. We use technologies like Next.js, React, Node.js to build solutions tailored to London's key industries — Finance & Fintech, Media & Entertainment, HealthTech.
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Legacy App ModernizationLearn more about our legacy app modernization services nationwide.
Next.jsNext.js transforms web applications into high-performance, SEO-friendly platforms that drive user engagement and boost conversion rates. Leverage its capabilities to streamline your development process and accelerate time-to-market, ensuring your business stays ahead of the competition.
ReactHarness the power of React to accelerate your development process, enhance user experiences, and drive ROI. With its component-based architecture, React allows businesses to build dynamic applications that are both scalable and maintainable, ensuring long-term success in a competitive landscape.
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Legacy App Modernization Project?
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