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Joyce BayoyJB

Joyce Bayoy

Systems Administrator Win & Debian | Networks | VoIP

€350/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Joyce

Systems & network administrator with 3 years of experience in SME/startup environments.

I work on hybrid infrastructures (Windows / Linux / cloud / VoIP) with a clear objective: to make systems reliable, secure networks, and reduce service interruptions in production.

I am accustomed to managing concrete issues such as:
critical service unavailability,
poorly segmented or unstable networks,
lack of supervision,
security vulnerabilities related to incomplete configurations,
difficult-to-maintain heterogeneous environments.
My approach is operational: on-site diagnosis, root cause correction, implementation of sustainable and documented solutions.

Need my services? Contact me, let's discuss your project.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

Can work on-site
Paris (up to 50km)

Experience

  • Alepia la maison d'orient
    Network and Telecom Systems Technician
    FASHION AND COSMETICS
    March 2023 - June 2023 (3 months)
    Villecresnes, France
    🔹 Support & Operations L1 / L2

    Network, NAS and server technical support

    Resolution of printer incidents and user assistance with their peripherals, Microsoft 365 office software

    🔹 Supervision & Fleet Management

    Deployment and configuration of an IT inventory solution (GLPI)

    Implementation of infrastructure supervision (Nagios Core)

    Proactive monitoring of network equipment and servers

    🔹 Storage & Cloud

    NAS storage administration (Synology)

    Cloud solutions management and administration (Dropbox Business)

    User access and rights management
    ISDN telephony,
    User Assistance Nagios Supervision Customer Support Network Administration Landline Telephony
  • vivalink
    Systems, Networks, and Telecom Technician
    TELECOMMUNICATIONS
    September 2022 - February 2023 (6 months)
    Vélizy-Villacoublay, France
    🔹 IP & VoIP Telephony

    IP telephony solutions administration (3CX, VoiceManager)

    Customer account management and configuration

    Incoming call routing & call scenarios (DDI, queues)

    Implementation of call parking

    Optimization of internal transfers via BLF (reduction of dialing errors)

    Writing technical tutorials & documentation (clients, L1/L2 support)

    🔹 Networks & Security

    Manual configuration of network equipment (TP-Link Routers & Switches)

    Firewall administration and configuration (Fortinet – rules, NAT, VPN)

    Network supervision and service continuity (PRTG)

    Network incident diagnosis and resolution (LAN, VLAN, VoIP)

    🔹 L1 / L2 Technical Support

    Ticket management & incident tracking (Zammad)

    Remote support & takeover (TeamViewer, AnyDesk)

    User assistance (workstations, IP telephony, collaborative tools)

    Resolution of network & printer incidents

    Escalation and coordination with higher technical teams,
    Voice over IP (ToIP) Network Administration IT Support Network Security

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Education

  • MASTER - SYSTEMS NETWORKS AND CLOUD COMPUTING
    ESGI
    🔹 Réseaux & Infrastructures Architectures réseaux opérateurs & nouveaux paradigmes (Next-Gen Networks) Déploiement VxLAN & architectures SD-WAN Traffic Engineering & optimisation des performances réseau Architectures hyperconvergées (HCI) Conception d’infrastructures réseau scalables et résilientes 🔹 Systèmes & Virtualisation Administration de serveurs de messagerie Gestion des systèmes de stockage & solutions de sauvegarde Virtualisation d’infrastructure Clustering & haute disponibilité 🔹 Cybersécurité Préparation certification JNCIA – Juniper Préparation certification PCNSA – Palo Alto Sécurité avancée des systèmes & réseaux Sécurité du Cloud Computing Analyse des risques & définition de politiques de sécurité 🔹 Cloud Computing & Automatisation Infrastructure as Code avec Terraform Automatisation du déploiement d’infrastructures cloud Kubernetes, DevSecOps & OpenStack Solutions Cloud Microsoft Aspects juridiques & contractuels du Cloud 🔹 Management & Gouvernance IT Management d’équipe technique Méthodologie ITIL Stratégie & marketing produit dans les télécoms Pilotage de projets IT Création d’entreprise 🔹 Projets Structurants Projet annuel d’ingénierie 🎯 Compétences en perfectionnement Analyser et concevoir des infrastructures adaptées aux besoins métier Piloter des projets systèmes & réseaux Superviser le déploiement et l’amélioration continue des infrastructures Identifier les risques et définir la politique de sécurité du SI
  • Bachelor of Science in Network Systems and Cloud Computing
    ESGI
    2023
    Conception et modélisation de bases de données relationnelles (SQL, modélisation MERISE/UML) 🔹 Développement Scripting & automatisation (Python) 🔹 Systèmes Administration Linux avancée (LPIC-1 101, Red Hat) Administration systèmes & réseaux (Linux, Windows Server) Administration Windows Server (Active Directory, GPO, services réseau) Supervision & monitoring (Nagios) Gestion de versions pour l’administration système (Git) 🔹 Réseaux Réseaux opérateurs (architectures WAN, routage, switching) Fondamentaux réseaux & préparation certification (Cisco CCNA) 🔹 Virtualisation & Cloud Computing Virtualisation d’infrastructure (VMware vSphere) Panorama des solutions Cloud (IaaS, PaaS, SaaS) Introduction au Cloud Microsoft (Microsoft Azure) 🔹 Management de projet Planification & cadrage de projets SI (MS Project, découpage en lots, gestion planning) 🔹 Communication & Business 🎯 Compétences opérationnelles développées Coordination de projets informatiques (planification, suivi, livrables) Conception d’architectures systèmes & réseaux Réalisation et déploiement de solutions informatiques Administration et maintien en condition opérationnelle des infrastructures

Skill set

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