
WITH
12-month Post-Merger Integration to consolidate technological & data systems, processes, & governance for a major Telco player
A fast-growing Telco fiber player had 12 months to achieve PMI, focused on Tech systems (9 build-
ups to integrate), process & governance
Context
Phase I: Target system architecture with associated transformation plan
Phase II: Transformation launch, with PMO steering, main tech streams delivery, & change management / reversibility plan
Scope & Deliverables
- Formalized current (« as-is ») and target (« to-be ») architectures and produced a prioritized 12-month roadmap
- Piloted the transformation program (governance, planning, PMO)
- Delivered core tech streams: data interfaces & platform, ERP migrations, CRM implementation, OSS rollout
- Managed vendor relationships and oversee all major migrations
- Ensured change management, reversibility and sustainable governance (CIO org, data office, end-to-end processes)
Team
Lead by
With
Senior Data Engineering & ERP Convergence Consultant
Led the ERP convergence and data platform build
Former analytics engineer and data architect across scale-up environments
Constellations Impact
- AS-IS & TO-BE architecture + associated roadmap & transformation plan
- New CRM & automations, unified data platform, tracked operational KPIs, 5 ERPs migrated, new network & OSS platform launched
We chose Constellations because the promise was compelling and beyond the promise, we genuinely succeeded in what we built together.
Pierre Cassier
CEO, Eurofiber


