Re-engineering the digital core of a national telecoms business

The business situation

A major telecoms organisation needed to re-engineer a core business system that had become constrained by legacy technology, fragmented processes, operational workarounds and high service demand. The goal was not merely to replace a platform, but to create a digitally enabled core capable of supporting scale, automation, better customer outcomes and more efficient operations.

Why it was complex

• The core platform was embedded in live operational processes.
• Legacy processes and technology were interdependent, making simple replacement high risk.
• Benefits depended on process change, operating model change and adoption — not only system delivery.
• Senior stakeholders needed a credible path to value while operational risk remained controlled.

What changed

The programme combined core system re-engineering, process redesign, governance, delivery control, business readiness and stakeholder alignment. The transformation was structured to move from legacy complexity towards a more scalable digital platform, with benefits tracking and operational readiness treated as central workstreams.

Commercial and operational impact

The programme released savings and value in excess of £150 million. It created a more digitally enabled business core and demonstrated how technology transformation can unlock major value when it is connected to operating model redesign and disciplined delivery governance.

Delivery moves

• Mapped core business processes and identified where legacy technology was driving cost, complexity and manual effort.
• Structured the programme around platform change, process redesign, readiness and benefits.
• Aligned senior stakeholders around value, operational risk and delivery sequencing.
• Strengthened governance so decisions, dependencies and trade-offs were visible.
• Protected operational continuity while progressing a fundamental change to the business core.

Evidence of value

• Over £150 million in savings and value released.
• Core business system re-engineered into a digitally enabled operating platform.
• Legacy constraints reduced through technology, process and operating model change.
• Delivery approach balanced transformation pace with service continuity and business readiness.

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