Jörg Britten

Fortinet SME at a public authority

March 2026 - Current | full-time freelance

• Administration of Firewall Systems of the Vendor Fortinet and Genua
• Integration, maintenance & patching of FortiGates, FortiManager
• Creating and updating of Documentation
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Fortigate Firewalls, FortiManager

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Fortinet SME at an Internet Service Provider

Nov 2023 - Feb 2026 | full-time freelance

• Administration of Firewall Systems of the Vendor Fortinet, Sophos and Linux iptables with Shorewall
• Integration, maintenance & patching of FortiGates, FortiManager, FortiAnalyzer and FortiAuthenticator
• Migration of Sophos and Shorewall to Fortigate Firewalls
• Creating and updating of Documentation
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Fortigate Firewalls, FortiManager, FortiAnalyzer, FortiAuthenticator, Sophos Firewalls, Shorewall Firewalls

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Check Point & Fortinet SME at an IT-Managed Service Provider

Jul 2022 - Oct 2023 | full-time freelance

• Administration of Firewall Systems of the Vendor Check Point and Fortinet
• Constant implementation of Firewall rules and change requests
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Check Point R80 – R81 Firwalls, Check Point Secuity Management Server, Fortinet Firewalls, FortiManager, Splunk, Cisco ACI

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Fortinet SME within Steel Industry

Jul 2022 - Dec 2023 | part-time freelance

• Administration of Firewall Systems of the Vendor Fortinet and Check Point
• Implementation of explicit FortiProxy incl. Kerberos authentication
• Implementation of FortiClient EMS Server for FortiClient Management
• Constant implementation of Firewall rules and change requests
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Fortigate Firewalls, explict FortiProxy, FortiManager, FortiAnalyzer, FortiClient with EMS, Check Point R81 Firwalls

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Check Point & Fortinet SME within Financial Industry

April 2022 - Jun 2022 | full-time freelance

• Administration of Firewall Systems of the Vendor of Check Point and Fortinet
• Constant implementation of Firewall rules and change requests
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Check Point R80 – R81 Firwalls, Check Point Multi-Domain Security Management, Check Point Secuity Management Server, Fortgate Firewalls, FortiManager, Splunk, HPNA

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Check Point SME within Pharma Industry

Jan 2022 - Jun 2022 | part-time freelance

Jan 2020 - Dec 2021 | full-time freelance

• Deplyoment (roll out) of Check Point NG Firewalls around the world as a replacement for Cisco ASA and Lancom Firewalls
• Site survey of the existing Infrastructure and take over of the Firewall configuration including adapting to new defined company standards

Used Technologies:
Check Point, Cisco ASA, Lancom, VeloCloud, Solarwinds, Cisco Switches, HP Switches

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Administrator Security within retail industry

Apr 2022 - Jun 2022 | part-time freelance

Jan 2022 - Mar 2022 | full-time freelance

Sep 2021 - Dec 2021 | part-time freelance

Sep 2017 - Sep 2019 | full-time freelance

• Administration of Firewall Systems, Web-Proxy, Authentication Services (RADIUS), WLAN Infrastructure, VPN (SSL/IPsec), PKI
• Constant implementation of Firewall rules and change requests
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Cisco ASA (CSM), Cisco Firepower (FMC), Cisco Prime, Cisco ISE, Cisco Wireless Lan Controller, Cisco Iron Port, Check Point, BlueCat Adress Manager (IPAM), Bluecoat Advanced Secure Gateway Proxy, RSA, LinTOP, YubiKey

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Network and Security Administrator within financial industry in Luxembourg

Jan 2008 - Sep 2017 | full-time employed

• Administration of the whole Network infrastructure as router and switches, Firewalls, VPN (SSL/IPsec), Web Proxy, Linux Mail gateways and Web server, Windows server and their services
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Cisco ASA, Fortigate, Cisco Catalyst Switches, Cisco ISR Router, Cisco Prime, Cisco ISE, RSA, Postfix Mail Gateway, Amavis, Spamassassin, VMWare ESX, Linux Red Hat, Apache Web server, SSL certificates, Microsoft AD, DNS and Exchange Server, McAfee, NetApp SAN, Brocade

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Network and System Administrator within financial industry in Luxembourg

Jul 1999 - Dez 2007 | full-time employed

• Administration of the whole Network infrastructure and Windows Server
• Troubleshooting and remedy of issues in the Network and Firewall environment
• 2nd and 3rd level Support within the responsible area

Used Technologies:
Nortel Networks switches, Postfix Mail Gateway, Amavis, Spamassassin, Microsoft AD, DNS und Exchange Server, McAfee, EMC SAN, Brocade

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Technician at a computer retailer in Germany

Oct 1997 - Jun 1999 | full-time employed

• Installation and configuration of Windows Server and Client systems and related services
• installation and configuration of small Networks
• 1st to 3rd level support of customers

Used Technologies:
Windows Client and Server systems

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re-Education as IT business specialist

May 1995 - Jul 1997 | school