Solutions
Legacy System Modernization
Legacy system modernization for UK teams—upgrade without disruption and keep delivery predictable.
Who It's For
Perfect for
Companies with outdated technology stacks
Businesses facing performance and scalability issues
Organizations with high maintenance costs
Companies needing to integrate modern features
Businesses with security and compliance concerns
Use Cases
Built for these scenarios
Deliverables
Everything you receive
Timeline
Typical timeline
Discovery
System audit, migration planning, risk assessment, and architecture design
Build
Incremental migration, parallel systems, testing, and validation
Launch & Stabilize
Cutover, monitoring, optimization, and decommissioning legacy systems
Metrics
Success metrics
Performance improvement: 2-5x faster response times
Cost reduction: 30-50% lower infrastructure costs
Uptime: Improved availability and reliability
Developer productivity: 40-60% faster feature development
Security: Enhanced security posture and compliance
Considerations
Risks & assumptions
Data migration complexity requires careful planning
Business continuity must be maintained during migration
Legacy system knowledge may be limited
Integration with existing systems can be complex
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FAQ
Frequently asked questions
We use incremental migration strategies, parallel systems, feature flags, and gradual cutover. We migrate in phases, test thoroughly, and maintain rollback capabilities.
Yes. We build new systems in parallel, migrate data incrementally, and use feature flags to gradually shift traffic. This ensures business continuity throughout migration.
We migrate all data to new systems with validation and testing. We maintain data integrity, handle data transformations, and ensure no data loss during migration.
Timeline depends on system complexity. Simple migrations take 12-16 weeks, while complex enterprise systems can take 24-32 weeks. We provide detailed timelines during discovery.
Yes. We provide documentation, training sessions, and knowledge transfer. We ensure your team understands the new system and can maintain it independently.
Regional
Delivery considerations for your region
Compliance & Data (UK/EU)
For UK teams, we default to GDPR-first thinking: data minimisation, purpose-limited storage, and clear access boundaries.
We can work under a DPA (template available on request) and implement practical retention/deletion flows when needed.
- GDPR-first patterns (minimise, restrict, document)
- DPA template available on request
- Retention/deletion and export flows where required
- Least-privilege access and secure session handling
- PII-safe logging + secure-by-default configuration
- NDA available for early-stage discussions
Timezone & Collaboration (UK/EU)
We align to UK time and EU overlap (GMT/BST with CET-friendly windows) for fast feedback cycles.
We keep the process lightweight: async updates, clear priorities, and written decisions to avoid ambiguity.
- UK/EU overlap with GMT/BST windows
- Async-first delivery with documented scope
- Weekly milestones and structured demos
- Clear escalation path for blockers
- Tight change control with clear sign-offs
Engagement & Procurement (UK)
We support typical UK procurement flows with clear scopes, change control, and invoice cadence.
If you prefer a discovery-first engagement, we can run a short paid discovery to lock requirements before build.
- GBP-based engagements and invoicing options
- Discovery-first option to reduce delivery risk
- Milestone-based billing when appropriate
- Transparent change control and sign-offs
- Vendor onboarding pack on request
Security & Quality (UK/EU)
We build for reliability and maintainability: clean PRs, tight review loops, and test coverage that matches risk.
Performance budgets and release checklists keep launches predictable—especially when multiple stakeholders review changes.
- CI-friendly testing: unit + integration + smoke tests
- Performance budgets + bundle checks (Core Web Vitals-minded)
- Structured release notes and rollback-safe deployments
- Security checklist for auth, roles, and data flows
- Observability hooks (logs + error tracking) ready for production
Want to scope this properly?
Share your current stack and constraints and we’ll map a phased modernization plan without disrupting operations. GBP-based engagements.
Reply within 2 hours. No-pressure consultation.