Outsource Job opportunity at Network International: basic salary + allowances + yearly KPI's bonus Job PurposeWe are seeking a highly skilled Systems Support & Application Delivery Senior Engineer to join our IT team. The ideal candidate will play a key role in delivering and supporting critical infrastructure modernization initiatives while ensuring systems remain secure, compliant, and highly available. This role combines project-based migration work with operational responsibilities, including patching, security vulnerability remediation, and system hardening. Job AccountabilitiesAdminister and optimize Windows Server environments, ensuring stability, performance, and security.Implement, manage, and monitor Windows patching processes for servers and VDI environments, ensuring timely deployment of security and critical updates.Identify, assess, and remediate operating system and infrastructure vulnerabilities based on security advisories, vulnerability scans, and best practices.Administer and maintain Active Directory services, including users, groups, computers, GPOs, delegation, and directory structure design.Manage Active Directory health, replication, DNS integration, and access control to ensure a secure and reliable identity platform.Plan and perform VDI migration from Windows 10 to Windows 11, including validation, optimization, and user readiness.Execute and administer Windows Server upgrades from 2016 to 2022, including ongoing operational support.Perform Microsoft SQL Server upgrades to SQL Server 2025, including installation, configuration, administration, backup, recovery, and performance tuning.Design, implement, and maintain Exchange Edge and implement high availability and business continuity.Provide troubleshooting and root cause analysis for infrastructure-related incidents.Collaborate with security, application, and operations teams to align upgrades and patching activities with business requirements.Create and maintain technical documentation, patching schedules, and architecture diagrams. -Min Education level accepted University graduate, from an accredited and recognized University -Min Years and type of Experience accepted 3+ years of experience in relevant field, within multinational Companies’. Strong hands-on experience with Windows Server administration (2016 / 2022).Proven experience with Windows OS patching, update management, and lifecycle maintenance.Solid knowledge of vulnerability remediation, system hardening, and security best practices in enterprise environments.Experience working with VDI environments and Windows 10 to Windows 11 migrations.Strong expertise in Microsoft SQL Server administration and upgrade projects.Experience with file server migrations and SharePoint.Good understanding of high availability, redundancy, backup, and disaster recovery concepts.Strong analytical and troubleshooting skills with the ability to resolve complex infrastructure issues.Ability to manage multiple tasks, projects, and priorities effectively.Detailed knowledge of PCI DSS requirements.Experience with a Tier 1 or 2 management consulting.-Additional skills - Suitable Level of English language [min intermediate level- British council]. - Cloud Administration experience- Citrix administration knowledge or hands-on experience.