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Senior Firewall Administrator

Location:  Markham
Stellen-ID:  13441

In a fast changing world, it takes pioneering spirit to create trustworthy technology. We enable secure connectivity and payment solutions for billions of people around the globe. At G+D Mobile Security, you will play a key role in realizing the digital transformation.

Job Summary:
The Senior Firewall Administrator monitors and manages network & firewall infrastructure solutions, including virtual systems in the cloud. This includes collaboration, planning and coordination of network and security projects. Responsibility for applying and optimizing methods to defend against attacks. Participation in the creation and updating of security concepts for stable network operation and support during IT audits. Creation and maintenance of network plans and documentation



  • Ensure logical security requirements are met based on standards such as enterprise, VISA, MasterCard and PCI.
  • Monitor network activity and promptly resolve high level alerts.
  • Install, configure, and manage network devices such as firewalls, switches, and routers (ideally from Palo Alto Networks, Juniper Networks, and/or Check Point vendors).
  • Architect network infrastructure based on business requirements and standards.
  • Perform vulnerability and penetration assessments for the network
  • Centralized protocol management for all network devices
  • Establish VPN, trunk and IPSEC tunnels with customers.
  • Manage network devices to ensure security and performance
  • Troubleshooting network-related issues
  • Supporting cloud networks (virtual private networks)
  • Perform appropriate change management process for network devices
  • Manage and monitor the intrusion prevention system
  • Manage the centralized cloud-based Proxy solution
  • Documenting and maintaining network diagrams and configuration changes
  • Implementing new solutions and maintaining an up-to-date network infrastructure
  • Collaborate with the global IT team
  • Perform monthly maintenance (on weekends)

Secondary Responsibilities: 

  • Provide on-call support
  • Assist Help Desk and Server Administrators 
  • Participate in Logical Security 


Qualifications, Experience and Educational Requirements:

  • University Degree in the field of Computer Science
  • Certification in Networking and Firewalls
  • 3 years or more experience in administrating Juniper, Palo Alto and Check Point Firewall
  • 3 years or more experience in administering Cisco Network switches and routers
  • Working experience in STRM, PRTG and IDP monitoring systems
  • Experience in secure tools such as Tripwire, Nessus, NetMRI, Qualys and Nagios
  • Good verbal and written communication skill in English
  • Experience in setting up secure Wi-Fi network
  • Experience in change management
  • Proven interpersonal, analytical, presentation and problem solving and troubleshooting skills
  • Ability to multi-task, organize and prioritize with attention to details
  • Self-motivated team player with ability to interact in a collaborate manner
  • Demonstrated ability to work well under pressure in meeting tight deadlines
  • Experience and knowledge on Cyber Security
  • Experience in common client applications such as MS Office, Lotus Notes, IE, PGP and SharePoint
  • Ability to work in a team environment
  • Responsible to maintain confidentiality 


Working Conditions

  • Safety Shoes/Boots mandatory on Production/Manufacturing Floor
  • Limited travel required 
  • Provide Level 3 support after hours 

Physical Requirements

  • Available to work flexible hours and weekends to conduct maintenance and upgrades
  • Able to rack servers and networking devices
  • Able to manage network cabling for the servers 


Additional Information
This job description is not intended to be all inclusive.  The candidate hired will also perform other reasonable related business duties as assigned by the supervisor.  The company reserves the right to 
revise or change job duties as needed.  This job description does not constitute a written or implied contract of employment.

By applying to this position you are confirming you possess either a Canadian citizenship, permanent resident status or valid work permit.

Please note:  Reference Checks and Credit, Criminal Background Checks will be administered on suitably qualified candidates. Your application will be kept on file for up to two years.  



Giesecke + Devrient Mobile Security Canada Inc. is an equal opportunity employer and values diversity in its workforce, encouraging applications from all qualified individuals. Accommodations are available on request for candidates taking part in all aspects of the selection process. If you would like to contact us, please contact Human Resources at careers.gdsci@gi-de.com 

We are looking forward to receiving your application!

Giesecke+Devrient Mobile Security Canada Inc.
Markham, Ontario
My team is shaping the future of IoT security.
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