Case 01 / 03 · Completed outcome

Global network migration

Led network migration delivery spanning 4,000+ client connections across 11 data centres, with zero unscheduled downtime.

London Stock Exchange Group2023–2026

Reported outcome4,000+

client connections migrated

My role

Led migration delivery, dependency closure, readiness reviews and coordination across technical teams and cutover windows.

Result / state

More than 4,000 client connections migrated with zero unscheduled downtime. Standardised trackers, governance, reporting and execution improved delivery velocity by about 30%.

Operating context

The programme covered Layer 2 server connectivity, Layer 3 services, external clients, application teams, security, operations, release calendars and physical site readiness.

Case record / four parts

How the work moved

01 / Situation

The network had to move while the business kept operating.

The work crossed technical services, external clients, global sites, support teams and fixed release windows.

02 / Decision

Use one delivery record for every change window.

Services, owners, dependencies, blockers, support and verification were made visible before execution.

03 / Change

Keep delivery control close to the technical constraint.

Readiness reviews, sequencing, issue clearing, escalation and cutover support ran across global regions.

04 / Proof

Verify the result before closing the record.

More than 4,000 client connections moved with zero unscheduled downtime.

Sanitised readiness sequence

A cutover needs owners, dependencies and verification in view.

This public version keeps the operating structure and removes proprietary implementation detail.

Scope

List services, owners, sites and constraints.

Mapped

Resolve

Clear dependencies and align release support.

Ready

Change

Run the sequence with a named escalation path.

Controlled

Verify

Check service health and capture acceptance.

Accepted

Evidence and responsibility

Supported by the evidence

4,000+ client connections migrated.
Zero unscheduled downtime across that migration outcome.
About 30% improvement in delivery velocity after standardising trackers, governance, reporting and execution.
Work across 11 global data centres, including Dubai.

My responsibility

Migration execution, dependency tracking, cutover support and delivery governance.
Cross-team readiness, sequencing, issue clearing and release coordination.

Scope boundary

Network engineers owned architecture and device configuration.
The public case omits client names and proprietary implementation detail.

Source status / Verified resume evidence and user-confirmed site footprint · public abstraction · 2026