Service Migrations

Modernise legacy estates with zero-downtime migrations and lasting enablement

WEBSAR guides you through the entire migration lifecycle—from assessments and architecture design to automated cutovers and post-launch optimisation—so you can move faster without putting customers or compliance at risk.

Migration framework

Assess & align

Collaborative workshops, system audits, and risk analysis to define the migration approach, success metrics, and stakeholder responsibilities.

  • Current-state mapping
  • Risk & compliance analysis
  • Executive playbook creation

Modernise & migrate

Incremental migration using strangler patterns, automation, and parallel run strategies to ensure continuity for users and dependent services.

  • Automation-led refactoring
  • Event-driven integration
  • Parallel cutover rehearsals

Enable & evolve

Knowledge transfer, hypercare, and continuous optimisation to embed new capabilities, reduce technical debt, and keep momentum post-launch.

  • Hypercare & support pods
  • Enablement & documentation
  • Continuous improvement sprints

Built for regulated, high-scale environments

We specialise in migrations where availability, security, and compliance are non-negotiable. Our teams bring reusable artefacts, automated guardrails, and a proven change management approach to keep every stakeholder confident.

  • Compliance in motion: Policy-as-code, automated evidence, and audit-ready documentation from day zero.
  • Stakeholder alignment: Executive dashboards, cadence meetings, and clear handoff plans keep business, technology, and change teams in sync.
  • Future-ready platforms: We modernise architecture while reducing technical debt—setting you up for rapid feature delivery after migration completes.

Proven results

We’ve moved complex estates for fintech, national infrastructure, and retail leaders without service disruption.

  • Latency reduced by 27%

    Migrated national infrastructure services to micro-frontend architecture with automated failover and observability.

  • 14 services in 12 weeks

    Replatformed critical fintech capabilities to a regulated cloud environment with zero downtime and automated compliance.

  • SOC 2 readiness achieved

    Established evidence pipelines, change controls, and monitoring to satisfy auditors during and after migration.

Let’s build the next chapter

Book a 30-minute strategy session with our leadership team

We’ll identify quick wins, surface hidden risks, and outline a tailored roadmap to accelerate your digital initiative.

Book consultation

Average response time < 24 hours