Context
The client, a leading industrial player, launched a workplace modernization initiative. This program aims to migrate workstations and servers to newer versions of Windows while ensuring service continuity and compatibility with business applications. To support this strategic transformation, the client relies on Avaliance to ensure technical leadership and overall coordination of the migration program.
Challenges
The client needed to ensure a seamless transition to new Windows environments without disrupting services for end users.
The challenges also included meeting project milestones, minimizing post-migration incidents, maintaining application compatibility, and strengthening coordination between technical teams and users in a Digital Workplace transformation context.

Achievements
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technical leadership of the Windows migration program for both workstations and servers
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coordination of technical teams involved in the migration
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validation and securing of business application compatibility with new Windows versions
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operational monitoring of deployments and proactive risk management
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user support to minimize the impact of change
Technologies & Frameworks
Results
Context
The client, a leading industrial player, launched a workplace modernization initiative aimed at migrating to newer versions of Windows. This strategic initiative is part of a broader IT modernization effort, while being constrained by strong requirements for service continuity and application compatibility. To support this critical transition, the client relies on Avaliance to ensure technical leadership, team coordination, and secure execution of the project.
Challenges
The client needed to ensure a smooth migration of workstations without service disruption for end users, while maintaining compatibility with existing business applications.
The challenges also included strict adherence to project timelines, minimizing post-migration incidents, and ensuring effective coordination between multiple technical stakeholders in a high-stakes digital transformation context.

Achievements
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definition and management of the Windows workstation migration plan
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coordination of technical teams involved in the project
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validation and securing of business application compatibility with new Windows versions
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operational monitoring of deployments and proactive risk management
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support for teams during the transition to minimize user impact
Technologies & Keywords
Results
Context
In a context of securing and industrializing Cloud environments, the client, a major international banking group, launched an initiative to standardize the Cloud images used across its IT projects. This initiative is part of a broader effort to strengthen compliance with the group’s security requirements while enabling the adoption of industrialized DevOps practices across project teams. To support this strategic initiative, the client relies on Avaliance to define, maintain, and deploy a set of standardized and secure Cloud images usable at scale across the organization.
Challenges
The client needed to ensure that all Cloud images used across IT projects comply with internal standards, incorporate the group’s security requirements, and are scalable across environments.
The challenges also included centralizing and industrializing the image management process to ensure reliability, consistency, and continuous updates in a demanding regulatory and technical environment.

Achievements
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definition and standardization of Cloud images aligned with the group’s security and governance requirements
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integration of hardening rules, security patches, and access configurations into image templates
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implementation of a centralized process for image management, updates, and documentation
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support for project teams in adopting and integrating standardized images
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contribution to the roadmap for industrializing Cloud usage across new scopes
Technologies & Security
Results
Context
As part of its global digital transformation program, the client initiated a strategy to progressively migrate its infrastructure and applications to the Cloud. This transformation, carried out in an international and multi-cloud environment (Azure, AWS, GCP), aims to modernize the information system while ensuring security, performance, and service continuity. To manage and coordinate this strategic initiative, the client relies on Avaliance to oversee planning, governance, and operational tracking of Cloud migration projects across the group.
Challenges
The client set ambitious and phased Cloud migration targets, with clearly defined multi-year milestones.
Key challenges included meeting deadlines and migration roadmaps in a multi-cloud, multi-region environment, controlling costs and risks, and ensuring high levels of quality, security, and performance of deployed solutions. It was also critical to ensure effective coordination between technical teams, business units, and regional stakeholders.

Achievements
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end-to-end planning and supervision of Cloud migration projects
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management of migrations to public and hybrid Cloud environments
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coordination of technical, business, and security teams within a unified framework
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implementation of reporting and communication mechanisms for stakeholders
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monitoring of performance, quality, and risks associated with Cloud services
Technologies & Frameworks
Results
Context
As part of its global Cloud transformation program, the client initiated a governance structuring effort to effectively manage Cloud initiatives at an international scale. To ensure consistency of actions, budget tracking, and coordination of Cloud activities across all regions, the client relies on Avaliance to implement a cross-functional governance framework focused on visibility, steering, and communication.
Challenges
The client needed a unified and reliable view of all its Cloud projects while ensuring full traceability of actions and precise monitoring of migrations and costs.
The challenges also included strengthening the reliability of tracking processes, improving consistency across regions, and streamlining communication around Cloud activities through shared KPIs and clear dashboards.

Achievements
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implementation of a global steering framework for Cloud initiatives at an international level
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definition and monitoring of key performance indicators (KPIs) through shared dashboards
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management of Cloud projects, budgets, and resources within a common framework
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facilitation of governance processes and coordination of stakeholders across different regions
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structuring of communication around program progress and Cloud-related challenges
Governance & Steering
Results
Context
The client initiated a Cloud strategy aimed at accelerating the adoption of best practices and industrializing Azure deployments across the organization. As part of this initiative, the client implemented a Cloud libraries platform designed to provide a standardized catalog of Azure services in the form of Infrastructure as Code. To support this strategic initiative, the client relies on Avaliance to contribute to the design and industrialization of this shared technical foundation.
Challenges
The client needed to accelerate the adoption of Cloud practices while ensuring reusability, compliance, and consistency of Azure deployments.
The challenges included providing a reliable and industrialized technical foundation to facilitate Cloud project automation, reduce discrepancies between environments, and increase the maturity of internal teams in Infrastructure as Code practices.

Achievements
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contribution to the design and enhancement of an Azure service catalog based on Infrastructure as Code
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standardization of Cloud technical components to ensure consistent and compliant deployments
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automation of Azure environment deployment and configuration
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integration of Cloud best practices and security standards from the service design phase
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support for internal teams in adopting and using the Cloud Shared Libraries platform
Technologies & Methods
Results
Context
The client, a large international insurance group, initiated an initiative to harmonize and modernize the Cloud architectures across its various entities. This approach relies on both private and public Cloud environments and aims to strengthen the consistency, security, and performance of solutions deployed at the group level. To support this structural transformation, the client relies on Avaliance to define common Cloud architectures and support technical and business teams in their implementation.
Challenges
The client needed to ensure the consistency of Cloud architectures in a multi-entity and multi-environment context, while maintaining a high level of security, performance, and portability of solutions.
The challenges also included defining shared architecture frameworks, optimizing support for technical teams, and enabling the progressive scaling of Cloud infrastructures across the group.

Achievements
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support for technical teams in defining Cloud architectures across private and public environments
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formalization of architecture principles and standards shared across the group
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integration of security, performance, and portability requirements from the design phase
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support for business and technical teams in adopting the defined architecture models
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alignment of technical solutions with scaling objectives and industrialization of Cloud usage
Technologies & Frameworks
Results
Context
The client initiated a Cloud transformation at an international scale to modernize its practices, tools, and ways of working. To ensure the success of this transformation beyond technical aspects alone, the client relies on Avaliance to structure a change management approach, raise employee awareness, and support the Cloud team responsible for the overall coordination of this strategic initiative.
Challenges
The client needed to ensure team adoption of the Cloud transition by overcoming cultural barriers and encouraging ownership of new practices.
The challenges included large-scale employee training, fostering a sustainable Cloud culture across the organization, and amplifying the impact of the transformation through targeted communication and the activation of local champions within different entities.

Achievements
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design and deployment of a Cloud adoption strategy tailored to an international context
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awareness-building and upskilling of employees on Cloud challenges, use cases, and benefits
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definition and implementation of a targeted, multi-channel communication plan
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support for the Cloud team in managing and coordinating the overall transformation
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activation and facilitation of local champions to ensure long-term adoption across entities
Key Focus Areas
Results
Context
The client, a large international insurance group, initiated a modernization program of its IT infrastructure as part of its Cloud migration. This strategic initiative aims to redesign the storage architecture to meet security, performance, and resilience requirements, while supporting the transition to hybrid and Cloud environments. To successfully deliver this transformation, the client relies on Avaliance, in collaboration with NetApp, to design and deploy Cloud storage solutions aligned with business needs and group standards.
Challenges
The client needed a reliable, secure, and resilient Cloud storage infrastructure capable of supporting the gradual migration of data to hybrid or full Cloud environments.
The challenges included ensuring full service continuity, protecting sensitive data, improving data access performance, and implementing a scalable architecture enabling long-term cost optimization.

Achievements
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design of secure, high-performance, and scalable Cloud storage architectures
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integration of NetApp solutions tailored to hybrid and Cloud environments
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support for data migration within a secure and controlled framework
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optimization of data availability, resilience, and performance
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coordination with technical teams to ensure overall architectural consistency
Technologies Used
Results
Context
The client, a large international banking group, initiated the modernization of its storage infrastructure to address performance, scalability, and governance challenges. As part of this initiative, the client launched the implementation of an object storage solution based on Scality technology, with the objective of providing an S3 service accessible via API to the group’s various entities. To support this strategic initiative, the client relies on Avaliance to design, deploy, and operate an object storage platform aligned with group standards.
Challenges
The client needed a scalable, secure, and highly available object storage platform capable of integrating seamlessly with internal applications.
The challenges also included structuring a storage offering delivered as a service, industrialized, compliant with internal standards, and easily usable by consuming teams, while ensuring a high level of automation and reliability.

Achievements
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design and deployment of an object storage platform based on S3-compatible technology
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provision of an API-accessible object storage service for all group entities
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automation and securing of operational and administrative processes
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ensuring operational stability and maintenance of the object storage infrastructure
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alignment of the solution with internal technical, security, and governance standards