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Assistant 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 ... EllisDon uses AI tools to assist in screening and assessing applicants for this position.

New

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 ...

ECS Resource Group

Network Team Lead

Bolton, ON · Hybrid

£450 - £500/day

The role leads a small team of engineers while actively contributing across BAU support, project ... Operational Delivery Support and maintain LAN, WAN, WiFi, and firewall infrastructure across all ...

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

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 ...

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Assistant Network Firewall Engineer information

What does an assistant network firewall engineer do?

An Assistant Network Firewall Engineer supports the management and maintenance of network firewall systems to protect an organization's data and infrastructure. They assist in configuring, monitoring, and troubleshooting firewalls, ensuring that only authorized traffic is allowed. Their responsibilities often include updating firewall rules, analyzing security logs, and responding to security incidents under the guidance of senior engineers. This role is vital for maintaining strong network security and preventing unauthorized access.

What are the key skills and qualifications needed to thrive as an assistant network firewall engineer, and why are they important?

To thrive as an Assistant Network Firewall Engineer, you need a solid understanding of network protocols, firewall concepts, and a background in computer science or related fields. Familiarity with firewall management tools (such as Cisco ASA, Palo Alto, or Fortinet), network monitoring systems, and relevant certifications like CompTIA Network+ or Cisco CCNA Security is usually expected. Strong analytical thinking, attention to detail, and effective communication are important soft skills for troubleshooting and collaborating with IT teams. These skills and qualifications are crucial for maintaining secure, efficient network operations and protecting organizational data from cyber threats.

What are some common challenges faced by assistant network firewall engineers when managing security policies?

Assistant Network Firewall Engineers often encounter challenges such as balancing strict security measures with the need to maintain smooth network performance. Ensuring firewall rules do not inadvertently block legitimate traffic or cause downtime requires careful attention to detail and thorough testing. Additionally, staying updated on emerging threats and adapting firewall configurations to address new vulnerabilities is an ongoing task. Collaborating with IT teams and end-users to understand business needs and troubleshoot access issues is also a key part of the role.

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

AspectAssistant Network Firewall EngineerNetwork Security Technician
CertificationsCCNA, CompTIA Security+CompTIA Security+, Cisco CCNA Security
Work EnvironmentDesign, implement, and maintain firewall solutionsMonitor, troubleshoot, and support security systems
Industry UsageIT departments, cybersecurity teamsNetwork operations, security support teams

The Assistant Network Firewall Engineer focuses on configuring and maintaining firewalls, while the Network Security Technician primarily monitors and troubleshoots security systems. Both roles require similar certifications and work within cybersecurity teams, but their daily tasks differ in scope and responsibilities.

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:

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

Sr. Network Systems Engineer, Firewall

McKesson

Mississauga, ON • On-site, Remote

CA$99K - CA$132K/yr

Full-time

Posted 3 days ago

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, pleaseclick 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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