In a highly regulated banking environment, a leading European financial institution launched several initiatives to strengthen the security, compliance, and resilience of its system infrastructures. The scope covered a global estate of over 30,000 Windows servers, operating in a 24/7 environment and subject to strict regulatory requirements, including those from the European Central Bank (ECB) and PCI DSS standards. To secure these critical environments and improve operational efficiency, Avaliance provided Level 3 Windows expertise, reinforced automation, and contributed to the industrialization of system administration and cybersecurity practices.

As part of its IT transformation and in response to increasing security requirements related to payment activities, a financial infrastructure player launched an initiative to strengthen governance and resilience of its network environments. Within the scope of PCI DSS compliance, the client engaged Avaliance to conduct a comprehensive audit of its network and security infrastructures across multiple datacenters. The objective was to assess the existing architecture (MPLS, VXLAN, and security devices), identify improvement areas, and recommend solutions to optimize operational management and security governance.

The client initiated the modernization of its application environment dedicated to securitization operations, historically based on a legacy system that had become obsolete. This strategic evolution aimed to meet increasing requirements in terms of performance, reliability, and regulatory compliance, while ensuring continuity of critical financial processes. To secure this transformation and design a robust target solution, the client relied on Avaliance to develop a new application capable of replacing the existing system while aligning with modern technology standards.

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.

The client, a major international banking group, operates a very large Windows server estate requiring high levels of industrialization, security, and monitoring. To meet these requirements, the client launched an initiative to automate operational processes, strengthen compliance, and improve security management across more than 20,000 Windows servers. In this context, the client relies on Avaliance to design automation and monitoring solutions based on modern technologies, combining Python, Flask, MongoDB, and Kibana.

The client, a key player in critical services, must ensure the stability, performance, and availability of its technical platforms. These infrastructures rely on IBM AIX environments and IBM TSM backup systems, which are essential for business continuity. To secure operations, support hardware upgrades, and enhance the reliability of these environments, the client relies on Avaliance to optimize and maintain its system and backup infrastructures.

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.

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.

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.

The client operates a critical trading application supporting its market activities. This platform, used daily by business teams, requires a high level of availability, performance, and reliability. To secure the operation of this application and support its evolution within a controlled framework, the client relies on Avaliance to strengthen DevOps operations and ensure the ongoing stability of the platform.