Core Banking Platform Cloud Migration With 99.99% Uptime

The UK-based digital bank successfully migrated its core banking platform to the cloud. This was with help from a dedicated Javixor Labs team. They achieved an uptime of 99.99% during the migration process as well as every day after.

Trusted, Certified & Recognized
Fintech / Enterprise Dedicated Team 8-Month Engagement
Fintech Cloud Migration
99.99% uptime post-migration
0min unplanned downtime during cutover
35% reduction in infrastructure cost
Achieved zero customer downtime during the full migration of core banking. It sounds impossible, but we've done it.

Our Clients

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Speed vs. Audit-Trail Requirements Are the Key Dilemma

The bank's core platform relied on a co-located data center architecture that was scaling up via hardware rather than architectural re-design. Each deployment was fraught with risk, release cycles slowed down to monthly intervals, and the infrastructure team was spending most of its time maintaining the existing system rather than building new features. The bank's regulatory environment added complexity to the cloud migration project. UK financial regulator required a documented, low-risk migration strategy with full audit trail; no customer-facing downtime was allowed during cutover.
  • Core banking platform running on outdated colocated hardware
  • Release cycles of one per month because of the risk of deployment
  • No disaster recovery or failover solution
  • Compliance requirement for a full documentation of the migration process

The Cost of Doing Nothing

Every month spent on the outdated infrastructure means slower deployment cycles, higher hardware costs, and increased risks of regulatory issues due to lack of an audited failover solution. Just one prolonged outage may result in a full-scale audit by the regulator.

A Phased, Zero-Downtime Migration

A six-person team consisting of platform engineers, security experts, and compliance documenters was embedded into Javixor Labs. Instead of a single cutover process, they created a phased migration process that will run both old and new environments in parallel for eight weeks. Traffic will be moved gradually between them, keeping them in sync at all times. Every phase was well documented for the regulator before its implementation.

Zero-Downtime Migration Approach

Run both the old and new environment in parallel while gradually moving traffic between them, and reconciling data automatically.

Weeks 1-16

Compliant Monitoring and Alerting

Implement monitoring and alerting that meet the regulator documentation requirements for every system handling customer funds.

Weeks 4-20

Automated Compliance Reporting

Automated the audit trail generation process the compliance team used manually for each release.

Ongoing

99.99% Uptime, No Regulatory Issues Found

The bank finished their core migration with no customer downtime and got through their next regulatory inspection with no issues found about the new infrastructure.

99.99%

uptime

Measured continually for eight months since migration ended.

0 min

Unplanned downtime during cutover

Phased approach ensured no downtime for customers during the migration period.

35%

Infrastructure savings

From moving away from co-located hardware to right-sized cloud infrastructure, infrastructure costs dropped by 35%.

We told Javixor Labs we had to avoid customer downtime at all costs in our core banking migration. Not only did they deliver on that, but we didn't find a single issue in the next regulatory inspection.

VP of Engineering

UK-Based Digital Bank

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Fintech Cloud Migration Questions Answered

Common questions clients ask about this engagement.

The team ran the legacy and new systems side-by-side for 16 weeks, gradually transitioning the traffic between them and balancing data between the two.
Each migration phase was properly documented and tested before going live, with the team implementing automated reporting to generate an audit trail as part of the process.
By switching from colocation to right-sized cloud infrastructure, the cost of operating the infrastructure went down by 35%.

Ready for a Zero-Downtime Migration?

Tell us about your current infrastructure and compliance requirements and we'll create a migration plan around them.

No commitment. No pressure. Just a conversation about what's possible.