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Administrator, Network Infrastructure

Cogeco Connexion Inc
Montréal, QC

Apply Now

Job details

Full-time

Skills

Jira
Network administration
Data center experience
Computer Science
Load balancing
OSPF
LAN
Visio
Google Cloud Platform
Firewall
Incident response
Bachelor's
SSL
Network protocols
BGP
Routing protocols
Computer networking
DNS
IPsec
MPLS
ServiceNow
Network engineering
High availability
Juniper
Information Technology
VPN

Full job description

Our culture lifts you up—there is no ego in the way. Our common purpose? We all want to win for our customers. We aim to always be evolving, dynamic, and ambitious. We believe in the power of genuine connections. Each employee is a part of what makes us unique on the market: agile and dedicated.

Time Type:

Regular

Job Description :

ADMINISTRATOR, NETWORK INFRASTRUCTURE

POSITION SUMMARY:

The Network Administrator is responsible for the design, operation, and security of complex wired, wireless, and Internet-facing network infrastructures spanning multiple data centers and locations. The role requires expertise across enterprise routing, firewalling, VPNs, DNS, load balancing, security appliances, and large-scale wireless networks.

KEY RESPONSIBILITIES

1. Design, implement, and maintain enterprise network architectures, including LAN, WAN, wireless, data center, and Internet-edge environments.

2. Administer, configure, and troubleshoot FortiGate/Juniper SRX firewalls, including policies, NAT, routing, and VPNs.

3. Configure, maintain, and support Cisco Layer 2 and Layer 3 switching, including VLANs, spanning tree, EtherChannel, and inter-VLAN routing.

4. Deploy, operate, and optimize Cisco / Ruckus wireless networks, including:

• Controller-based and cloud-managed WLAN architectures

• SSID design, RF tuning, roaming optimization, and wireless security

5. Deploy, operate, and support F5 Load Balancers, including LTM (DNS/GTM experience a strong plus).

6. Design, implement, and troubleshoot dynamic routing protocols, including BGP and OSPF.

7. Design, implement, and support IPsec and SSL VPN solutions for site-to-site and remote access connectivity.

8. Operate and troubleshoot DNS services in an Anycast environment.

9. Perform advanced network and wireless troubleshooting across complex, multi-vendor environments.

10. Participate in network design reviews, infrastructure upgrades, and large-scale migrations.

11. Ensure high availability, performance, and security of all network services.

12. Maintain accurate network documentation, diagrams, and operational standards.

13. Collaborate closely with security, systems, cloud, and application teams to support business and technical objectives.

ESSENTIAL QUALIFICATIONS

ACADEMIC TRAINING

Bachelor's degree in Computer Science, Information Technology, or a related field.

WORK EXPERIENCE

4+ years of experience in network administration or network engineering within enterprise or service-provider environments.
Hands-on experience administering and supporting firewalls , Cisco Layer 2 and Layer 3 switching, wireless networks, Load Balancers.
Experience operating enterprise-scale routing, switching, and security infrastructures in complex production environments.
Proven experience designing, implementing, and supporting IPsec and SSL VPN solutions for site-to-site and remote access connectivity.
Experience designing scalable, secure, and highly available wired and wireless network infrastructures.
Demonstrated ability to troubleshoot complex, multi-vendor network issues in mission-critical environments.
Ability to operate effectively in a fast-moving environment with competing priorities and production impact.
Willingness to participate in an on-call rotation for after-hours support and incident response.

SPECIFIC COMPETENCIES

Strong understanding and hands-on experience with routing and network protocols including OSPF/OSPFv3, BGP and MP-BGP, Spanning Tree (STP/RSTP/MST), PIM-SSM, IGMP v2/v3, HSRP, VRRP, and MPLS.
Working knowledge of DNS.
Good understanding of network and application security principles including DDoS attack types, mitigation strategies, Web Application Firewall (WAF) placement, network segmentation, and Internet-edge security design.
Familiarity with large-scale wireless design considerations including RF planning, roaming behavior, and high-density environments.
Understanding of DDoS mitigation technologies and appliances, including inline and out-of-band protection.
Exposure of cloud networking concepts, preferably Google Cloud Platform (GCP),
Familiarity with ITSM and work management tools such as Jira and ServiceNow.
Experience creating and maintaining network diagrams and documentation using tools such as Microsoft Visio or Lucidchart.

You’ll benefit from:

Flexibility: Yes, we think that what you do matters. At work and at home.
Fun: We laugh a lot, it makes every day brighter.
Discounted services: We provide amazing services to our clients, and you’ll get them at home, because you deserve them.
Rewarding Pay: Let's be honest, everybody likes to make a good salary. We offer attractive compensation packages, and it comes with a great culture.
Benefits: We’ve got you covered.
Career Evolution: Join us and we will give you the tools to achieve your career goals!
Technology: You have a passion for technology? Excellent, we do too. Here, you will manage, influence, play, create, fix, and shape the industry.

#LI-KN1

#LI-Hybrid

Location :

Montréal, QC

Company :

Cogeco Connexion Inc

At Cogeco, we know that different backgrounds, perspectives, and beliefs can bring critical value to our business. The strength of this diversity enhances our ability to imagine, innovate, and grow as a company. So, we are committed to doing everything in our power to create a more diverse and inclusive world of belonging.

By creating a culture where all our colleagues can bring their best selves to work, we’re doing our part to build a more equitable workplace and world. From professional development to personal safety, Cogeco constantly strives to create an environment that welcomes and nurtures all. We make the health and well-being of our colleagues one of our highest priorities, for we know engaged and appreciated employees equate to a better overall experience for our customers.

If you need any accommodations to apply or as part of the recruitment process, please contact us confidentially at [email protected]

Apply Now

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