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Homayoun MohseniHM

Homayoun Mohseni

Network Engineer | Security | N2/N3 Support

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Homayoun

Network Engineer – Critical Environments, N2/N3 Support & Technical Projects

Experienced Network Engineer, I am involved in the implementation, optimization, and security of complex network infrastructures in a production environment.

I handle Level 2/3 support, incident management, and actively contribute to technical projects: migration, integration, architecture evolution.

Key Technical Skills:


IP Networks: LAN, WAN, SD-WAN, MPLS, VPN
Network Security:
- Firewalls: Palo Alto, Fortinet, Cisco ASA, Check Point
- Load balancing & reverse proxy: F5 BIG-IP, Netscaler
- Filtering & Proxy: Forcepoint, Zscaler, Barracuda, Cisco Web Security, Cisco Email Security
- Access Control: ACL, network segmentation
Protocols & Services: BGP, OSPF, EIGRP, VLAN, STP, QoS, DHCP, DNS
Monitoring & Tools: Centreon, Wireshark, SolarWinds
ITIL Methodology: incident management, change management, maintenance in operational condition, documentation


I have worked on network and security equipment deployment projects, multi-site migrations, and secure integrations with a constant focus on high availability and performance.

What I offer:
Autonomous technical support for your network & security needs.
A reliable, structured approach focused on resolution & service quality.
The ability to quickly integrate into your teams and drive projects forward.

📞 Let's discuss your network and security challenges. I am available for one-off or medium-term assignments, as support or with complete autonomy.


Sincerely,
MOHSENI Homayoun
  • French

    Native or bilingual

  • English

    Fluent

  • Persian

    Native or bilingual

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

Experience

  • ScaleSquad
    Systems, Network, and Security Engineer
    September 2017 - Today (8 years and 9 months)
    Nanterre, France
    . Analysis and troubleshooting of multi-client networks (Energy leader, public sector, private sector… etc.)
    • Opening of flows: LAN-to-LAN, LAN-to-WAN, LAN-to-Internet, WAN-to-Internet
    • Ordering of digital certificate renewals
    • Installation and updates of certificates on a load balancer
    • Web services implementation: URL configuration
    • VIP creation on the load balancer
    • VPN account creation
    • Configuration of an IPSEC site-to-site / SSL VPN tunnel
    • Whitelist and blacklist on mail and web proxy
    • Modification of public DNS and domain names
    • Configuration of a portal for third-party access requests to company resources
    • Incident management Resolution of P1, P2, P3 incidents (On-call – Off-hours – Standby)

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Education

  • Network and Systems Engineering
    Université Paris-Saclay - UVSQ

Certifications

  • Fortinet NSE7 – Enterprise Firewall
    Fortinet
    Fortigate Fortinet NSE7 – Enterprise Firewall NSE7
  • Fortinet NSE4
    Fortinet
    NS4 Fortinet NSE4

Skill set (15)

Categories