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Temporary Network Firewall Engineer Jobs in Toronto, ON

Ellisdon

Network Engineer

Mississauga, ON · On-site

Configure and maintain Palo Alto NGFWs and manage branch and cloud firewall policy through Strata ... network administration or engineering. * Working knowledge of Palo Alto NGFWs and centralized ...

Posted today

Tenstorrent

Sr. Network Engineer

Toronto, ON · Hybrid

CA$100K - CA$500K/yr

Configure, maintain, and troubleshoot switches, routers, firewalls, and high-speed network fabrics ... Collaborate with hardware, platform, DevOps, and infrastructure teams to support new cluster ...

NTT Ltd.

Senior Network Engineer

Toronto, ON · Hybrid

Experience with and an expert understanding of firewalls is a must. The primary goal of the Senior Network Engineer is to ensure the smooth operation of the network infrastructure to provide maximum ...

Definity Financial

Senior Network Engineer

Toronto, ON · Hybrid

CA$69K - CA$119K/yr

This role requires deep expertise in routing, switching, firewalls, SASE, SSE, SD-WAN, VPNs, and ... The successful candidate will be a key member of the Network Engineering team and will participate ...

Aviso Wealth

Senior Systems Engineer

Toronto, ON · Hybrid

Solid networking knowledge, including DNS, DHCP, TCP/IP, routing concepts, firewalls, certificates ... Azure Administrator Associate, Azure Network Engineer Associate, Azure Security Engineer Associate ...

New

Aviso Wealth

Senior Systems Engineer

Toronto, ON · On-site

Solid networking knowledge, including DNS, DHCP, TCP/IP, routing concepts, firewalls, certificates ... Azure Administrator Associate, Azure Network Engineer Associate, Azure Security Engineer Associate ...

New

Ci

Network Security Engineer

Toronto, ON

The Network Security Engineer is responsible for designing, implementing, automating, and managing ... This role also involves monitoring and troubleshooting firewalls, load balancers, wireless systems ...

ECS Resource Group

Network Team Lead

Bolton, ON · Hybrid

£450 - £500/day

... firewall administration and troubleshooting Strong working knowledge of AWS networking, including VPCs, routing, security groups, and hybrid connectivity Proven ability to support and guide engineers ...

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Temporary Network Firewall Engineer information

What does a temporary network firewall engineer do?

A Temporary Network Firewall Engineer is responsible for configuring, managing, and monitoring firewall systems to protect an organization’s network from unauthorized access and cyber threats. They typically work on a short-term basis, often to implement urgent security projects, assist during peak workload periods, or cover for permanent staff absences. Their duties include analyzing network traffic, creating and updating firewall rules, responding to security incidents, and ensuring compliance with security policies. They may also collaborate with other IT staff to support overall network security and provide recommendations for improvements. This role requires up-to-date knowledge of firewall technologies and cybersecurity best practices.

What are the key skills and qualifications needed to thrive as a temporary network firewall engineer?

To thrive as a Temporary Network Firewall Engineer, you need strong expertise in network protocols, firewall configuration, and cybersecurity principles, typically backed by a relevant degree or certifications like Cisco CCNP Security or CompTIA Security+. Proficiency in firewall platforms such as Cisco ASA, Palo Alto, or Fortinet, as well as network monitoring and intrusion detection systems, is commonly required. Analytical thinking, problem-solving, and effective communication are crucial soft skills for diagnosing issues and collaborating with IT teams. These skills are vital to ensure robust network security, minimize downtime, and maintain compliance with organizational policies during temporary assignments.

What are some common challenges faced by temporary network firewall engineers when joining a new organization?

Temporary Network Firewall Engineers often encounter challenges such as quickly adapting to unfamiliar network architectures and security policies. Since they are brought in for specific projects or short-term needs, they must efficiently assess existing firewall configurations, identify vulnerabilities, and implement updates with minimal disruption. Effective communication with permanent IT staff is crucial to understand organizational priorities and ensure seamless integration of security measures. Balancing speed with thoroughness is key to success in this role.

What is the difference between Temporary Network Firewall Engineer vs Network Security Technician?

AspectTemporary Network Firewall EngineerNetwork Security Technician
CertificationsCCNA, CompTIA Security+, Cisco ASACompTIA Security+, Cisco CCNA Security
Work EnvironmentProject-based, short-term contracts, IT departmentsOngoing support, network monitoring, security setup
Employer & Industry UsageIT consulting firms, tech companies, government agenciesCorporate IT teams, managed service providers

Temporary Network Firewall Engineers focus on short-term projects like deploying or upgrading firewalls, while Network Security Technicians handle ongoing security monitoring and maintenance. Both roles require similar certifications and often work within the same environments, but their scope and duration differ.

What are the most commonly searched types of Network Firewall Engineer jobs in Toronto, ON?

The most popular types of Network Firewall Engineer jobs in Toronto, ON are:

Temporary Network Firewall Engineer jobs near you
Infographic showing various Temporary Network Firewall Engineer job openings in Toronto, ON as of August 2026, with employment types broken down into 100% Full Time. Highlights an 50% In-person, and 50% Hybrid job distribution.

Sr. Network Systems Engineer, Firewall

MCKESSON

Mississauga, ON • On-site, Remote

CA$99K - CA$132K/yr

Full-time

Posted yesterday

New

McKesson rating

7.9

Company rating: 7.9 out of 10

Based on 210 frontline employees who took The Breakroom Quiz

47th of 86 rated pharmaceutical

Job description

McKesson is an impact-driven, Fortune 10 company that touches virtually every aspect of healthcare. We are known for delivering insights, products, and services that make quality care more accessible and affordable. Here, we focus on the health, happiness, and well-being of you and those we serve – we care.

What you do at McKesson matters. We foster a culture where you can grow, make an impact, and are empowered to bring new ideas. Together, we thrive as we shape the future of health for patients, our communities, and our people. If you want to be part of tomorrow’s health today, we want to hear from you.

About the Role 

McKesson is seeking a Senior Network Security Engineer to help design, secure, and evolve our global enterprise network infrastructure. This role serves as a strategic technical leader responsible for building resilient, scalable, and secure network architectures that support business growth, regulatory compliance, and digital transformation initiatives. 

The ideal candidate brings deep expertise in network security architecture, Zero Trust principles, firewall technologies, and enterprise networking. You will partner closely with Security, Infrastructure, Cloud, and Enterprise Architecture teams to strengthen McKesson's security posture while enabling reliable connectivity across hybrid environments. 

What You'll Do 

  • Design and implement secure enterprise network architectures across hybrid cloud and on-premises environments. 

  • Develop and lead Zero Trust Architecture initiatives, including network segmentation and micro-segmentation strategies. 

  • Conduct security architecture reviews and provide recommendations that reduce risk and strengthen resilience. 

  • Engineer and optimize firewall and perimeter security solutions, including Palo Alto technologies. 

  • Support secure connectivity through Zscaler, HPE Aruba EdgeConnect, Secure Internet Gateway, and web proxy solutions. 

  • Design and govern secure remote access solutions leveraging ZTNA, VPN, and Network Access Control (NAC). 

  • Monitor, analyze, and improve network security through IDS/IPS technologies, traffic analysis, and security analytics platforms. 

  • Lead troubleshooting, root cause analysis, and remediation efforts for complex network and security incidents. 

Minimum Requirements 

  • 7+ years of professional experience in network engineering, network security, or security architecture roles. 

  • Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or equivalent experience. 

  • Experience designing and implementing enterprise network security architectures. 

  • Expertise with Palo Alto firewalls, policy management, and security controls. 

  • Experience with Zero Trust Architecture, network segmentation, and secure network design. 

  • Strong understanding of routing, switching, TCP/IP, BGP, OSPF, SD-WAN, and enterprise networking technologies. 

  • Experience with VPN technologies, ZTNA, NAC, or secure remote access solutions. 

  • Experience supporting security monitoring tools including IDS/IPS, network traffic analysis, or security analytics platforms. 

Preferred Experience 

  • Experience with Zscaler, HPE Aruba EdgeConnect, SASE, or Secure Internet Gateway technologies. 

  • Experience securing hybrid cloud environments. 

  • Knowledge of regulatory, compliance, and risk management frameworks. 

  • Experience with automation tools such as Ansible, Python, or infrastructure-as-code solutions. 

  • Experience conducting security architecture reviews and risk assessments. 

  • Exposure to large-scale global enterprise environments. 

  • Industry certifications such as PCNSE, CCNP Security, CCIE, CISSP, or equivalent. 

  • Experience collaborating with enterprise architecture and cybersecurity leadership teams. 

Travel, Work Location & Physical Requirements 

  • Limited travel may be required based on business needs. 

  • This role may be remote, hybrid, or office-based depending on business requirements. 

  • Ability to participate in extended periods of computer-based work and virtual collaboration sessions. 

We are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson's pay philosophy, and pay will always be compliant with any applicable regulations. In addition to base pay, other compensation, such as an annual bonus or long-term incentive opportunities may be offered. For more information regarding benefits at McKesson, please click here.

Our Base Pay Range for this position

$99,100 - $132,100

McKesson has become aware of online recruiting-related scams in which individuals who are not affiliated with or authorized by McKesson are using McKesson’s (or affiliated entities, like CoverMyMeds or RxCrossroads) name in fraudulent emails, job postings or social media messages. In light of these scams, please bear the following in mind:
McKesson Talent Advisors will never solicit money or credit card information in connection with a McKesson job application.


McKesson Talent Advisors do not communicate with candidates via online chatrooms or using email accounts such as Gmail or Hotmail. Note that McKesson does rely on a virtual assistant (Gia) for certain recruiting-related communications with candidates.

McKesson job postings are posted on our career site: careers.mckesson.com.

McKesson is an Equal Opportunity Employer

McKesson provides equal employment opportunities to applicants and employees, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age, genetic information, or any other legally protected category. For additional information on McKesson’s full Equal Employment Opportunity policies, visit our Equal Employment Opportunity page.

McKesson is committed to being an Equal Employment Opportunity Employer and offers opportunities to all job seekers including job seekers with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, please contact us by sending an email to (United States) Disability_Accommodation@McKesson.com or (Canada) Accessibility@mckesson.ca. Resumes or CVs submitted to this email box will not be accepted.

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