Multi‑Tower Infrastructure & Legacy Systems Transformation for a Global Insurance Provider

A global insurance organisation operating a complex hybrid estate required specialist support across multiple technology towers. With ageing infrastructure, legacy systems, and ongoing transformation programmes, the organisation needed a partner capable of rapid mobilisation and deep cross‑domain expertise.

Challenge: Multi‑Tower Modernisation Under High Operational Pressure

The organisation faced simultaneous transformation demands across infrastructure, security, EUC, and legacy systems.

Network & Infrastructure Modernisation Needs
- Required HLD/LLD, NSX, ISAM/LDAP upgrades, and RHEL migrations
- Architecture validation needed across multiple platforms
Datacentre Exit Complexity
- Multi‑site decommissioning across several UK locations
- Required weekend/overnight engineering and strict chain‑of‑custody
EUC Transformation Requirements
- Large‑scale laptop rollout and deskside support
- Zero‑downtime expectations for end users
Security & Firewall Constraints
- Urgent procurement of Check Point devices with limited availability
Legacy System Risk
- HP‑UX DR environment lacked documentation
- Critical business continuity dependent on successful reconstruction

The organisation needed a partner capable of delivering across all towers without disrupting ongoing operations.

Solution: Integrated Multi‑Tower Engineering & Legacy System Recovery

Simplex delivered coordinated engineering, architecture, and operational support across all transformation streams.

Network Architecture & Design: Delivered HLD/LLD, upgrade planning, and architecture validation and assessed RHEL and platform dependencies.
Datacentre Migration & Decommissioning: : Executed multi‑wave decommissioning across multiple sites and managed shutdown sequencing, cabling validation, and kit removal.
EUC Deployment & Deskside Engineering: Delivered multi‑location laptop rollout and provided imaging, activation, and end‑user readiness support.
Security Infrastructure & Firewall Procurement: Sourced Check Point models across suppliers and validated licensing and compatibility under urgent timelines.
Legacy HP‑UX DR Environment Reconstruction: Rebuilt environment from limited documentation and re‑established network routes, VLANs, firewall rules, and storage mapping.
Specialist SME Advisory: Provided dependency analysis, integration testing, and urgent troubleshooting.

Outcome: A Stabilised, Modernised, and Risk‑Reduced Technology Estate

Successful Multi‑Tower Delivery: Enabled progress across network, security, EUC, and datacentre programmes.
Reduced Operational Risk: Clean datacentre exit and validated DR readiness for legacy HP‑UX systems.
Accelerated Programme Timelines: SME intervention unblocked critical dependencies.
High‑Quality Engineering at Scale: Consistent delivery across planned and reactive workloads.

The organisation now operates with reduced risk, improved resilience, and a modernised technology foundation — supported by Simplex’s cross‑domain engineering capability.

Infrastructure Modernisation