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Achieving Full Microsoft Cloud Autonomy for a Multinational Utility Company

Digital Workplace

During corporate restructuring of a multinational utility organisation, Simplex executed a seamless Microsoft 365 and Azure tenant split for 3,000 users without operational disruption.

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Executing a zero‑disruption Microsoft cloud separation for 3,000 users during corporate restructuring of a multinational utility organisation.

  • Delivered a full Microsoft 365 and Azure tenant split
  • Preserved email, files, Teams history, and collaboration artefacts end‑to‑end
  • Re‑established identity, routing, and governance for the new entity
  • Migrated Power Apps, flows, connectors, and Planner data without breakage
  • Ensured secure, compliant data transfer using Proofpoint and Egress
  • Achieved full cloud autonomy with uninterrupted business operations
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Modernising Network Infrastructure Across a Geographically Complex Public Sector Estate

Field Force

A vast, geographically dispersed public sector estate required large scale network modernisation across 200–400+ sites. Simplex delivered end to end field engineering, LAN/WAN/Wi Fi upgrades, and island based logistics — enabling reliable connectivity across one of the UK’s most challenging regions.

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Delivering a multi site network transformation across remote islands, rural communities, and 200+ schools.

  • Modernised LAN/WAN/Wi Fi across 400+ sites
  • Completed 218 school wireless upgrade ahead of schedule
  • Delivered onsite cabling, switching, routing, and firewall deployments
  • Conducted pre install, validation, and post install wireless surveys
  • Provided CRB approved engineers for sensitive school environments
  • Established a long term field engineering capability in the Highlands
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Modernising Wireless Infrastructure Across a Multi-Country Estate for a Global Energy Technology Leader

Field Force

A multi-country wireless transformation required consistent onsite engineering, surveys, and installation across 40+ global locations. Simplex delivered end-to-end field execution that improved coverage, strengthened security, and accelerated programme delivery.

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Enabling a global wireless modernisation programme for a global energy technology leader through multi‑region surveys, installations, and hyper‑care execution.

  • Delivered wireless surveys and installations across 40+ global sites
  • Executed physical installs, patching, validation, and hands‑and‑feet support
  • Conducted predictive and onsite heatmapping surveys
  • Provided pre‑ and post‑installation wireless validation
  • Mobilised engineers across Europe, APAC, LATAM, and North America
  • Ensured consistent reporting, dashboards, and governance
  • Supported pilot and POC phases across eight countries

Enabled secure, standardised wireless architecture at global scale

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Nationwide SD-WAN Modernisation for a well renowned retail chain

Field Force

Simplex delivered industrialised SD-WAN rollout across hundreds of retail sites, improving network resilience and operational consistency.

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Modernising network connectivity across a national retail estate through industrialised SDWAN rollout and nationwide engineering execution.

  • Delivered nationwide SDWAN rollout across hundreds of retail sites  
  • Executed onsite migrations, cutovers, validation, and legacy kit removal  
  • Managed secure storage, preconfiguration, labelling, and insurance for all devices  
  • Standardised playbooks and engineering templates for predictable delivery  
  • Stabilised field operations with nationwide engineering coverage  
  • Resolved power, cabling, rack, and hardwarereadiness issues at scale  
  • Ensured transparent commercial governance through structured change control  
  • Strengthened delivery partnership and unlocked future programme opportunities  

 

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Transforming DevOps, Cloud, and CI/CD for a UK Justice Organisation

Infrastructure Modernisation

Legacy DevOps tooling, slow release cycles, and an inefficient vendor model were constraining a major digital reform programme. Simplex modernised CI/CD pipelines, stabilised operations, and enabled a lean, high performing DevOps function.

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Modernising DevOps, accelerating delivery, and enabling cloud transformation for a national justice organisation.

  • Re‑engineered CI/CD pipelines using Terraform, Ansible, Jenkins, Git, Docker
  • Delivered Infrastructure as Code for Azure resources
  • Automated builds, deployments, and environment provisioning
  • Stabilised BAU operations and resolved critical platform issues
  • Supported migration from UKCloud to Azure
  • Reduced team size from 14 to 9 while increasing output
  • Achieved £1m+ annual cost savings
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Stabilising Operations and Improving Delivery Velocity of a UK Retail Bank

Infrastructure Modernisation

Simplex stabilised a high-risk technology function during an accelerated transition of a UK retail bank to an offshore delivery model, maintaining—and improving—delivery performance.

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Stabilising a high‑risk technology function and accelerating delivery during an operating‑model overhaul.

  • Transitioned to a fully managed offshore model in under three months
  • Deployed senior engineers to close capability gaps and stabilise operations
  • Preserved — then improved — delivery velocity quarter‑on‑quarter
  • Avoided ~£1.2M per quarter in regulatory penalties
  • Enabled new commercial lending and mortgage propositions
  • Introduced DevOps‑driven automation and reduced manual effort by 5 FTE
  • Eliminated key‑person risk through documentation and knowledge transfer
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Application Estate Modernisation & Data Centre Exit for a Global Investment Manager

Infrastructure Modernisation

Simplex supported a financial services firm in modernising ~200 applications and exiting four data centres, reducing risk and operational overhead.

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Modernising a complex application estate and exiting four data centres with predictable, scalable delivery.

  • Assessed ~200 applications across diverse technologies and dependencies
  • Defined repeatable migration and upgrade patterns for Azure
  • Executed phased migration waves with controlled business testing
  • Upgraded legacy applications to supported versions
  • Established secure, governed landing zones for cloud deployment
  • Reduced infrastructure complexity and contributed to ~£13M programme efficiencies
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Modernising Core Technology for a Global Insurance Leader

Infrastructure Modernisation

Simplex modernised a century-old insurer’s fragmented technology estate, delivering a secure, scalable cloud foundation that improved resilience and operational performance.

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Rebuilding a century-old global insurer’s technology core for resilience, security, and cloud-scale growth.

  • Modernised a fragmented, ageing estate into a secure, cloud-ready platform
  • Migrated 600+ VMs to Azure VMware Solution with minimal downtime
  • Consolidated 12 AD domains and unified identity governance
  • Delivered <5ms storage latency with Azure NetApp Files
  • Achieved 100% endpoint protection across 1,500 devices
  • Automated migration of 1M+ emails and attachments
  • Reduced datacentre footprint by 30% and operational overhead by 25%
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Driving Post Acquisition Integration and Global Technology Modernisation for a Leading Asset Manager

Mergers & Acquisitions

Following a major acquisition, the global asset management firm operated with fragmented platforms, identities, and support models across regions. Simplex delivered a multi year programme that unified collaboration, modernised infrastructure, and established a future ready operating model for global growth.

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Executing a multi‑year post‑acquisition integration and technology modernisation programme across global operations.

  • Unified Microsoft 365, identity, and collaboration for 700+ users
  • Consolidated Active Directory and established a global identity model
  • Delivered network integration and global connectivity uplift
  • Migrated data centres, decommissioned legacy platforms, and enabled cloud adoption
  • Standardised service management and integrated ServiceNow
  • Established a future‑ready operating model for ongoing M&A activity
  • Delivered measurable operational, security, and collaboration improvements
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