Hassen ZEBOUCHI

• Led the decommissioning of physical machines and defined migration paths toward virtualized environments (VM / Private Cloud). • Conducted technical and functional feasibility studies to assess workloads, dependencies, and application constraints. • Designed target architectures that are scalable, secure, and resilient, aligned with business needs and operational requirements. • Provided guidance and support to application teams to adapt, modernize, or refactor applications prior to migration. • Performed risk analysis, defined remediation plans, and proposed technical solutions (network, storage, middleware, security). • Coordinated with operations, network, security, and application teams to ensure smooth and controlled migrations. • Authored architecture documents, technical recommendations, migration roadmaps, and decision-support materials for governance committees. • Implemented standards and best practices for virtualization, resource optimization, and technical debt reduction. • Contributed to infrastructure rationalization, reducing operational costs and improving service availability. Ensured end‑to‑end oversight: design → validation → migration → stabilization.

Operation and Maintenance of: eServGlobal mobile money transactions plat-forms (all my operation action on the platforms are on system Linux ans Solaris solution) on the platforms VAS, VoMS/POS, USSDGW and SMSC. • Check the systems and assure the ascent of the incoherence. • Work with various support teams to identify problems that may impact the customers of Ooredoo Algeria. • Propose solutions to make the system better and ameliorate it. • Troubleshooting and fixing technical issues. • Coordinating with Third Party teams : VOMS, CBIO, and so on. • Ensure continuous and regular support to internal teams. • Interface with internal customers of the company and suppliers. • Ensure the execution of queries and services. • Operating on Oracle Solaris, Redhat servers and also on ODA. • Respond to Subscriber / Agent Claims for Reloads.

• Ensure the filter supervision of SDH and PDH sites as well as the support of Trans MW SDH problems (Alcatel, NERA, Marconi, SOM) & PDH (SOM, NV) and compression or multiplexing equipment (Memotec & Access Gate) . • Generate daily and occasional reports relating to the network situation. • Provide remote corrective actions to correct problems (Swith Mode Manual, Reset, Increase signal level). • Ensure support of AT transmission problems as well as monitoring and escalation. • Provide support for all corrective and preventive interventions on site Transmission point of view and this with the FM, ST, E /// and other as well as the support of the FO team for the problems not identified (loop tests ... etc.) on all the transmission links of the Wataniya network.