Freelancer profile translated to English.
Back to original languageAbout Rajaonah
Ensure the availability and resilience of your IT infrastructure.
With several years of experience in managing critical infrastructures, I support companies in the administration, security, and sustainability of their systems. My expertise focuses on operational maintenance (MCO) and the implementation of robust backup strategies.
Why entrust me with your projects?
- Virtualization Mastery: Expert in VMware vSphere environments, I ensure the management and optimization of your clusters for maximum performance.
- Disaster Recovery Specialist: Design and deployment of Business Continuity Plans (BCP) via Veeam, Nakivo, and PPDM, ensuring rapid data recovery in case of major incidents.
- Automation & Efficiency: Intensive use of PowerShell and Python to automate administrative tasks and reduce the risk of human error.
- Network Expertise: Concrete experience in managing complex protocols (OSPF, Core Stacking) for fluid and redundant connectivity.
My typical interventions:
- Backup Audit and Redesign: Analysis of your current processes and migration to high-availability solutions.
- Infrastructure Migration: Update and deployment of complex systems without service interruption.
- Daily Administration: Management of your servers (Windows/Linux) and Level 3 support.
Rigorous and results-oriented, I adapt to your business constraints to transform your IT into a secure growth lever.
French
Native or bilingual
English
Conversational
Malagasy
Native or bilingual
Remote only
Primarily works remotely
Experience
- Groupe BASANSystems & DevOps EngineerAGRICULTUREJuly 2024 - Today (1 year and 11 months)Antananarivo, MadagascarManagement and optimization of a hybrid park of ~240 servers (150 in production) on VMware and OVH to ensure high availability. Management of the Kubernetes cluster lifecycle: deployment, scalability, and monitoring of containerized applications. Automation of deployment processes via CI/CD pipelines (Jenkins, GitLab). Implementation and monitoring of backup and business continuity plans (BCP). Performance monitoring and operational maintenance (MCO) of systems.
- Groupe NextHopeIT EngineerCONSULTING AND AUDITSDecember 2023 - May 2024 (5 months)Antananarivo, MadagascarDesign and deployment of secure IT infrastructures for various clients, based on virtualization (VMware vSphere) and networking (Cisco). Automation of deployments (CI/CD, GitOps) with Jenkins and ArgoCD on Kubernetes for Moozik and TicketPlace platforms, resulting in increased performance. Operational maintenance (MCO) of client infrastructures and internal vSphere clusters, with proactive incident resolution to minimize downtime. Writing project technical documentation (technical and general architecture documents).
- Groupe NextHopeIT Engineer InternJune 2023 - November 2023 (5 months)Antananarivo, MadagascarSkill development in containerization (VMware Tanzu) and security of virtualized networks (NSX-T, SDN). Participation in the design of a client network architecture including an OSPF routing protocol migration.
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Education
- Oracle Cloud Infrastructure 2025 Certified Foundations AssociateOracle2025Oracle Cloud Infrastructure 2025 Certified Foundations Associate
- Vmware Tanzu Kubernetes Grid 2.0National School of Computer Science2021Vmware Tanzu Kubernetes Grid 2.0