Private cloud transformation for government: migrating 4,500 applications

4,500 applications to migrate. A deeply modernized IT infrastructure. Non-negotiable requirements for security, sovereignty, and cost control.

This was the challenge faced by a government ministry when it called upon Sofrecom’s expertise to design and deploy its private cloud platform.

This project perfectly illustrates the complexity of cloud transformation in the public sector: it is not simply about selecting a technology, but about building a coherent, secure, and scalable architecture while ensuring the continuity of public services and preparing internal teams for autonomous and sustainable operations.

A ministry facing structural cloud transformation challenges

Modernizing IT infrastructure in the public sector involves specific constraints that are not always present in the private sector: data sovereignty requirements, strict regulatory frameworks, heterogeneous application landscapes, rigid budget cycles, and the need to ensure uninterrupted service delivery.

The ministry had to simultaneously address several critical challenges:

• Modernizing a legacy IT infrastructure to improve agility, scalability, and resilience
• Orchestrating the migration of 4,500 applications to a new cloud platform while ensuring service continuity
• Deploying a hybrid private cloud platform integrating IaaS (Infrastructure as a Service) and CaaS (Container as a Service)
• Ensuring interoperability between the new platform and existing systems for a smooth transition
• Identifying the most suitable vendors and solutions in terms of performance, security, and total cost of ownership
• Defining an operational roadmap for migration and ongoing infrastructure management

These challenges reflect a common reality in public administrations: cloud transformation cannot be improvised. It requires rigorous methodology, strong technical expertise, and structured change management.

Sofrecom’s methodology: from audit to knowledge transfer in 8 steps

Sofrecom’s cloud experts deployed a structured eight-step approach designed to minimize risks, optimize investments, and ensure long-term operational autonomy.

1. Infrastructure audit

Comprehensive analysis of the existing application landscape, network architecture, and information systems to identify dependencies and priorities.

2. Requirements definition

Formalization of technical, functional, and security requirements, including regulatory constraints such as data protection and cybersecurity.

3. Cloud market benchmarking

Comparative evaluation of leading cloud solutions based on performance, security, interoperability, and cost.

4. Vendor selection

Objective assessment of technical and commercial proposals to select the most suitable partners.

5. Prototype design (IaaS & CaaS)

Validation of use cases through prototypes to test compatibility and reduce migration risks.

6. Migration roadmap design

Definition of migration phases, prioritization of applications, and planning of key milestones.

7. Deployment and migration support

Operational support during platform deployment and progressive migration of applications while ensuring service continuity.

8. Training and knowledge transfer

Structured training programs to ensure full autonomy of internal teams in managing the cloud platform.

Results: a sovereign, scalable, and resilient cloud platform

Sofrecom’s support enabled the ministry to achieve a modern and operational cloud infrastructure with tangible benefits:

 

Beyond technical delivery, the project marked a strategic shift from a rigid infrastructure to an agile, scalable, and sovereign cloud environment supporting long-term public sector modernization.

Sofrecom, a trusted cloud transformation partner for the public sector

For over 50 years, Sofrecom has supported public organizations and telecom operators in their most complex digital transformations. Its cloud practice brings together experts in architecture, cybersecurity, migration strategy, and change management.

Are you leading a cloud transformation project for your administration or ministry? Our experts can help design a tailored approach from assessment to full operational transfer, discuss your project with us to explore your digital transformation needs