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Gesvé EkoveGE

Gesvé Ekove

Security and Network Consultant

€778/day
Cergy-Pontoise, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Gesvé

Network and security consultant, I have evolved through several roles: administrator then system and network engineer, before specializing in cybersecurity. I have carried out various missions ranging from training to solution integration and project management.

More recently, I held the position of senior security and network engineer within an international environment, attached to the Information Systems Security division. My mission was to ensure the maintenance in operational condition of the infrastructure, to deploy new technological solutions, and to continuously strengthen the operational security of the IS.

With over 10 years of experience in cybersecurity, I bring recognized expertise in remediation, compliance, and security rule implementation projects. As guarantor of PSSI compliance, I act as an interface between technical teams, management, clients, and partners, supporting the definition and deployment of architectures adapted to business needs and regulatory constraints. I also supervised security engineers (junior to experienced) within the SOC, ensuring their skill development and operational efficiency.

In parallel, I was responsible for critical service lines (WAF, public DNS, XDR), managing their availability and technological evolution. I took charge of cybersecurity incident management, contributed to remediation plans, and oversaw the integration of new security solutions adapted to the company's context.

In constant interaction with business teams in France and internationally, I participate in the continuous improvement of the IS security posture and the strengthening of its resilience against threats.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Cergy-Pontoise (up to 50km), Saint-Denis (up to 50km)

Experience

  • Air Liquide
    Security and Network Engineer
    May 2017 - Today (9 years and 1 month)
    Courbevoie, France
    Within the cybersecurity team as a referent for technologies, load balancing, public DNS, WAF, and XDR.
    • Deployment of security policies on F5 WAF (ASM), load balancer (LTM), and DNS (GTM) equipment.
    • Deployment of VS (Virtual Servers) on LTM and WAF.
    • Remediation and improvement of security policies for extranets (applications and APIs) deployed on the WAF.
    • Migration of extranets located on F5 4000s ASM/APM chassis in private data centers (on-premise) to AWS EC2 F5 AWAF instances.
    • Migration of DNS zones and DNS configuration located on F5 BIG-IP 2000s GTM chassis to AWS EC2 F5 instances.
    • Migration and replacement of the outgoing DNS infrastructure (forwarding) from Infoblox equipment to F5 GTM.
    • Integration of AWS EC2 F5 GTM instances (forwarding and reverse DNS) in Asia and America.
    • Activation of DNSSEC and deployment of GSLB (High Availability) features.
    • Management and coordination of DNS migration for Air Liquide's public domain names (following subsidiary acquisitions and sales) in collaboration with the intellectual property department and the registrar.
    • Implementation and integration of the Palo Alto Cortex XDR solution on a fleet of 75,000 machines (including workstations and servers).
    • Maintenance of Palo Alto Cortex XDR security policies, including daily analysis of vulnerabilities and blocks in accordance with the company's PSSI.
    • Implementation of automation tasks via API Gateway (AWS) for recurring activities on XDR, WAF, and DNS.
    • Daily handling of network and cybersecurity incidents on F5 solutions (LTM, GTM, and ASM) and Cortex XDR.
    • Analysis and remediation of vulnerabilities identified by Qualys probes.
    • Writing and updating technical documentation for OCD L2/L3 SOC teams.
    F5 DNS F5 LTM F5 ASM AWS Cortex XDR
  • BIGSO
    Network and Security Trainer
    July 2018 - July 2018
    Toulouse, France
    Role Mission Environment
    Network and security trainer, trainer and consultant in information systems architecture
    • F5 Administrator and LTM (load balancer) training F5 NETWORKS, LTM, BIG-IP, REVERSE PROXY, LAN/WAN, HTTPS, WEB, NETWORK AND SECURITY ARCHITECTURE
    F5 BigIP Training F5 LTM
  • Atelcom
    Network and Security Trainer
    August 2017 - September 2017 (1 month)
    Algiers, AL, Algeria
    Role Mission Environment
    Network and security trainer, trainer and consultant in information systems architecture
    • F5 Administrator and LTM (load balancer) training
    • Blue Coat ProxySG (administrator) training
    • Consulting on architecture and perimeter security of the IS
    F5 NETWORKS, LTM, BIG-IP, REVERSE PROXY, SYMANTEC, PROXYSG, WEB PROXY, FORWARD PROXY, URL FILTERING, LAN/WAN, HTTPS, WEB, NETWORK AND SECURITY ARCHITECTURE
    F5 BigIP ProxySG F5 LTM Training

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Education

  • Intensive DevOps Training
    cocadmin (online training)
    Chapitres administrations : Prérequis Linux Gestion de configuration Ansible , conteneurs Docker, AWS cloud administration, Kubernetes, Monitoring et Alerting (Prometeus et Grafana), intégration Conitune / Déploiement Continu (CI/CD - Gitlab CI), Centrlisation des logs avec Elasticsearch | Chapitres avancés : Linux (ligne de commande et scripts Bash), Ansible, Docker, AWS, Kubernetes Speedrun, Automatisation avec Gitlab
  • YAML Training
    Udemy
    Cours sur le langage de sérialisation YAML

Certifications

Skill set

Categories

  • Other