Context
As part of a broader IT transformation and organizational restructuring, the client launched an initiative to improve the operational efficiency of its Digital Workplace scope. This involved managing day-to-day activities, overseeing service management providers both onshore and offshore, and monitoring ongoing projects in an environment requiring strong coordination, responsiveness, and service quality. To secure this transition and structure operational governance, the client relied on Avaliance to organize activities, optimize processes, and ensure overall performance.
Challenges
The client needed to strengthen the reliability of its Digital Workplace operations while improving coordination with service providers and internal teams.
Key challenges included structuring processes, improving prioritization, controlling operational flows, ensuring rigorous project management, and maintaining a high level of service quality for end users.

Achievements
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organization and management of Digital Workplace activities and operational workflows
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supervision of service management providers, including offshore teams (L1, L2, L3)
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project management with tracking of budgets, resources, risks, and timelines
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improvement of prioritization mechanisms and coordination of internal and external stakeholders
Core Focus Areas
Results
Context
The client launched a strategic program to structure its data capabilities at a group level and establish the foundations of a data-centric organization. This initiative involves coordinating several key entities — including the Cloud Center of Excellence, Data Management Department, and DataLab — to align practices, architectures, and governance. To drive this transformation and ensure the successful deployment of an Azure-based Enterprise Data Platform, the client relies on Avaliance to organize initiatives, define standards, and support teams in increasing their maturity.
Challenges
The client needed to structure Data Management at scale while deploying a modern data platform capable of supporting business and analytical use cases.
Key challenges included unifying Data and Cloud practices, defining core architectural patterns (ingestion, modeling, governance, serving), establishing a robust data governance framework, aligning teams under a common agile framework, and successfully launching the group-wide data platform.

Achievements
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structuring Data Management activities and defining governance roles, responsibilities, and processes
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implementing and supporting teams on the SAFe framework to industrialize delivery
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designing Azure-based data architecture patterns for ingestion, modeling, and exposure
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defining the Enterprise Data Platform scope including roadmap, MVP, and target architecture
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coordinating business, IT, and support teams and overseeing overall program governance
Technologies & Frameworks
Results
Context
The client launched several strategic application projects aimed at modernizing internal tools and improving the performance of business processes. These initiatives included redesigning user interfaces to enhance internal user experience, as well as evolving backend components to optimize inter-application exchanges and processing reliability. To support these projects and secure delivery within a demanding environment, the client relied on Avaliance to design, develop, and integrate both front-end and back-end application components.
Challenges
The client needed to accelerate the modernization of its internal applications while ensuring strong technical consistency between front-end and back-end layers.
Key challenges included ensuring the quality and reliability of Angular components, the robustness of Java-based services, seamless integration with existing systems, adherence to delivery timelines, and securing deployments within a regulated environment.

Achievements
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design and development of Angular front-end components integrated into existing interfaces
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development of Java-based REST web services for inter-application communication
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implementation of Spring batch processes for backend operations and processing reliability
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simultaneous evolution of front-end and back-end layers to ensure application consistency
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optimization of code quality and technical coordination to secure the integration of new features
Technologies & Tools
Results
Context
The client initiated the modernization of its Initial Margin application, a critical solution used for calculating and monitoring collateral margins in financial operations. This program aims to transition the existing environment to a Microsoft Azure-based Cloud architecture, while ensuring continuity of Collateral operations and stability of processing. To secure this transformation and ensure consistency between legacy and Cloud environments, the client relies on Avaliance to support application maintenance, manage progressive migration, and integrate new technical components.
Challenges
The client needed to carry out a sensitive application transformation within a demanding financial environment, while maintaining a consistent level of service for a critical margin management application.
Key challenges included managing the coexistence of legacy and Cloud platforms, progressively integrating Azure components, preserving calculation performance, and securing data flows related to collateral operations.

Achievements
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ensuring operational continuity of the Initial Margin application within its legacy environment
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progressive migration toward a Microsoft Azure Cloud architecture and component integration
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adaptation of application components to ensure interoperability between legacy and Cloud systems
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optimization of performance related to margin calculation processes
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securing data flows and stabilizing exchanges across the Collateral system components
Technologies & Frameworks
Results
Context
The client launched a program to modernize and industrialize its internal application environments in order to improve security, performance, and service reliability. This initiative is part of a broader strategy aimed at strengthening authentication mechanisms, modernizing application infrastructures, and automating technical operations. To deliver this transformation across a critical scope and structure technical evolutions, the client relied on Avaliance to design target architectures, manage deployments, and secure operations.
Challenges
The client needed to ensure secure and high-performance access to business applications for all internal users and partners.
Key challenges included modernizing sensitive application infrastructures, securing authentication mechanisms, automating deployments, and improving operational reliability in a demanding environment.

Achievements
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modernization of critical application infrastructure and migration to a performant target platform
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automation of technical deployments through industrialization and orchestration tools
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implementation of a centralized authentication architecture integrating SSO and MFA
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securing user access, application data flows, and structuring operational processes
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production of documentation and formalization of operational standards
Technologies & Security
Results
Context
The client delivers large-scale network programs requiring rigorous coordination of technical stakeholders, vendors, and internal teams. These projects include the modernization of critical infrastructures, replacement of core network equipment, and redesign of LAN and Wi-Fi architectures across hundreds of sites per organization. To secure pre-sales phases, structure project governance, and ensure successful large-scale execution, the client relies on Avaliance to define requirements, manage programs, and oversee delivery.
Challenges
The client needed to manage multiple complex network projects simultaneously while meeting strict constraints in terms of timelines, quality, and profitability.
Key challenges included structuring pre-sales phases, planning multi-site deployments, managing the replacement of critical equipment, coordinating technical stakeholders, and controlling operational risks.

Achievements
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scoping client requirements and estimating services during pre-sales phases
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defining project governance and comprehensive multi-site deployment plans
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end-to-end management of projects from initiation to go-live across hundreds of sites
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budget tracking, margin management, and operational risk control
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coordination of technical teams and supervision of core network equipment replacement
Technologies & Domains
Results
Context
The client delivers large-scale real estate projects requiring the integration of reliable, secure, and standards-compliant IT infrastructures. These projects include the setup of technical facilities, deployment of full network architectures, and coordination of multiple stakeholders under tight timelines. To ensure technical consistency, secure major relocation operations, and structure project governance, the client relies on Avaliance to define IT requirements, manage deployments, and coordinate all stakeholders through to go-live.
Challenges
The client needed to successfully deliver critical real estate projects while ensuring IT infrastructure compliance, service continuity during transitions, and adherence to tight deadlines.
Key challenges included accurately defining technical requirements, coordinating multiple stakeholders, managing several parallel projects, establishing effective governance, and securing complex operations such as large-scale relocations.

Achievements
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definition of technical requirements, specifications, and design of LAN, MAN, WAN, and Wi-Fi architectures
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budget management, planning, and governance (project and steering committees)
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coordination of vendors, operators, and system integrators and operational monitoring of deployments
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change management support and communication with operational teams during major transitions
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management of complex multi-site relocations and technical validation of deliverables
Technologies & Domains
Results
Context
As part of its global digital transformation, the client launched a strategic initiative to migrate all its infrastructures to Azure and accelerate Cloud adoption at an international scale. This global program includes the definition of a group-wide Cloud strategy, large-scale migration of existing environments, the establishment of a Cloud Center of Excellence (CCoE), and support for executives and local teams across more than 70 countries. To manage this complex transformation and ensure successful execution, the client relies on Avaliance to define the strategy, coordinate international teams, and lead large-scale migration programs.
Challenges
The client needed to execute a global Cloud migration while ensuring security, compliance, performance, and governance across environments.
Key challenges included defining a global Cloud strategy, coordinating multiple international stakeholders, industrializing Cloud practices, reducing transformation risks, and accelerating Azure adoption within a controlled framework.

Achievements
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definition of a group-wide Cloud strategy (Cloud First and Cloud by Design)
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management of an Azure migration program for 2,400 servers (IaaS/PaaS) across 70 countries
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structuring and leadership of the Cloud Center of Excellence (CCoE)
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implementation of executive dashboards to track consumption, performance, and $20M program budget
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deployment of global Cloud adoption initiatives, technical assessments, and Azure training
Technologies & Frameworks
Results
Context
The client, a major railway transportation operator, deploys critical technical infrastructures across numerous operational sites. These projects cover a wide range of environments, including networks, telephony, Wi-Fi, control stations, and communication systems, all requiring high levels of availability, compliance, and service continuity. To secure these deployments and structure multi-site project management, the client relies on Avaliance to define requirements, coordinate stakeholders, and manage operations through to go-live.
Challenges
The client needed to ensure reliable deployment of critical technical infrastructures while controlling timelines, costs, and risks.
Key challenges included coordinating internal and external stakeholders, ensuring compliance of on-site installations, maintaining service continuity during infrastructure changes, optimizing project management processes, and managing multiple simultaneous multi-site deployments.

Achievements
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definition of technical and resource requirements and validation of deployment solutions
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management of tenders, cost estimation, and comprehensive project planning
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coordination of technical teams, vendors, and telecom operators throughout the lifecycle
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operational monitoring of multi-site deployments through to go-live (Wi-Fi, networks, telephony)
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optimization of project management processes and securing of critical operations
Infrastructure & Domains
Results
Context
In the context of a global Cloud transformation, the client established a Cloud Center of Excellence (CCoE) to structure Cloud adoption and harmonize technical practices across its various entities. This initiative aims to define a common governance framework, establish global technical standards, and support Business Units in designing their Azure architectures. To drive this strategic initiative and ensure consistency of the Cloud model, the client relies on Avaliance to structure the governance framework, guide teams, and accelerate project delivery.
Challenges
The client needed to implement a unified Cloud governance model based on a global hybrid framework while defining common standards applicable across all entities.
Key challenges included designing robust and compliant Azure architectures, creating shared Cloud components, upskilling teams, harmonizing practices across Business Units, and coordinating IT stakeholders in a complex international environment.

Achievements
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definition of a global Cloud governance model and associated responsibilities (RACI)
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implementation of shared standards (naming conventions, tagging, Azure Policies)
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operational leadership of the CCoE and coordination of technical and business teams
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design of scalable, resilient, and compliant Azure architectures
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development of shared components (Data Lake, API Management, shared services) and support for Business Units