Firewall Administrator (Global)

Giesecke & Devrient GmbH; Markham; On-site; CAD 115,000 - 135,000; Full time

Job summary

Giesecke & Devrient GmbH in Markham, Canada, is seeking a seasoned Network Security Specialist to protect and evolve a global enterprise firewall landscape in a dynamic international environment.

You will administer enterprise firewall environments (Palo Alto), plan rollouts, ensure SLA compliance, document changes, and collaborate with global teams to maintain secure, reliable network operations while supporting design and upgrades across sites.

Qualifications

• Proven experience in administering enterprise firewall environments, ideally with Palo Alto Networks firewalls.
• Strong networking knowledge, particularly in Internet technologies, routing protocols, IPv4, and IPv6
• Solid understanding of IT security principles, network security architectures, and best practices
• Familiarity with ITIL-based service management processes is an advantage
• Structured, service-oriented working style with a strong focus on quality and reliability
• Ability to communicate effectively with international stakeholders in a professional environment
• Fluent English, both written and spoken

Responsibilities

• Administration and operation of enterprise firewall environments across global cloud, data center, and branch locations
• Planning, coordination, and execution of firewall rollouts, migrations, and lifecycle activities
• Ensuring SLA compliance, including response and resolution times during ticket handling
• Creation, implementation, and documentation of changes within the scope of the firewall service
• Development, maintenance, and continuous improvement of infrastructure and security documentation
• Configuration and implementation of firewall rules, NAT policies, and routing adjustments
• Regular review of existing firewall rule sets and execution of policy clean-ups to ensure security and performance best practices
• Support in troubleshooting and resolving network connectivity and security-related incidents
• Collaboration with internal teams and international stakeholders to ensure stable and secure network operations
• Participate in design and implementation for business-driven projects
• Assist in planning and deploying new sites, security Zones and upgrades
• Contribute to firewall and segmentation design based on security requirements
• Work with senior engineers/architects on solution design and validation
• Implement and maintain network security controls and best practices
• Work closely with infrastructure, systems, and application teams
• Communicate effectively with stakeholders on incidents and project progress
• Escalate complex issues appropriately while taking ownership of resolution

Skills

Networking fundamentals

IT security principles

Stakeholder communication

International collaboration

Education

University/College degree in technology field

Security/Firewall vendor certification

Tools

Palo Alto Networks

Firewall management tools

Job description

Select how often (in days) to receive an alert:

Compensation: $115,000 - 135,000 plus up to 5% bonus, capped at 150%. This posting is for an existing vacancy.

Job Summary

Join our network security team and take responsibility for protecting and evolving a global enterprise firewall landscape in a dynamic international environment.

Primary Responsibilities

Firewall Operations

• Administration and operation of enterprise firewall environments across global cloud, data center, and branch locations
• Planning, coordination, and execution of firewall rollouts, migrations, and lifecycle activities
• Ensuring compliance with defined SLAs, including response and resolution times during ticket handling
• Creation, implementation, and documentation of changes within the scope of the firewall service
• Development, maintenance, and continuous improvement of infrastructure and security documentation
• Configuration and implementation of firewall rules, NAT policies, and routing adjustments
• Regular review of existing firewall rule sets and execution of policy clean-ups to ensure security and performance best practices
• Support in troubleshooting and resolving network connectivity and security-related incidents
• Collaboration with internal teams and international stakeholders to ensure stable and secure network operations

Project Support & Design

• Participate in design and implementation for business-driven projects
• Assist in planning and deploying new sites, security Zones and upgrades
• Contribute to firewall and segmentation design based on security requirements
• Work with senior engineers/architects on solution design and validation
• Implement and maintain network security controls and best practices

Cross-Functional Collaboration

• Work closely with infrastructure, systems, and application teams
• Communicate effectively with stakeholders on incidents and project progress
• Escalate complex issues appropriately while taking ownership of resolution

Qualifications, Experience and Educational Requirements

Work Experience:

• Proven experience in administering enterprise firewall environments, ideally with Palo Alto Networks firewalls
• Strong networking knowledge, particularly in Internet technologies, routing protocols, IPv4, and IPv6
• Solid understanding of IT security principles, network security architectures, and best practices
• Familiarity with ITIL-based service management processes is an advantage
• Structured, service-oriented working style with a strong focus on quality and reliability
• Ability to communicate effectively with international stakeholders in a professional environment
• Fluent English, both written and spoken

Education:

• University or College Degree in the technology-related field or equivalent work experience
• Certification in Security / Firewall Vendors

Working Conditions

• Safety Shoes/boots are mandatory on the Production/Manufacturing floor;
• Limited travelling is required;
• Providing Level 3 support after-hours;
• Available to work flexible hours and weekends to conduct maintenance and upgrades;

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

We are an equal opportunity employer! We promote diversity in all its forms and create an inclusive work environment, free from prejudice, discrimination and harassment, in which all employees feel a sense of belonging. We warmly welcome all applications regardless of gender, age, race or ethnic origin, social and cultural background, religion, disability and sexual orientation.