Senior Network Engineer - Infra, Data Center & Fabric, Juniper
Astra North Infoteck Inc.Role Overview
Astra North Infoteck Inc. is hiring a Senior Network Engineer - Infra, Data Center & Fabric, Juniper. This is a full-time role in Toronto. Part of Astra North Infoteck Inc.'s Mobile hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
Title: Senior Network Engineer - Data Center & Fabric, Juniper
Skills: Juniper Data Center
Role and Responsibilities
- Monitor and administer enterprise LAN/WAN, data center, and wireless environments (Nexus, Catalyst, ASA/Firepower, SD WAN).
- Triage, troubleshoot, and resolve L1–L3 network incidents and performance issues; escalate to vendors as needed.
- Manage IP addressing, VLANs, trunking, EtherChannel/Port Channel, VPC, and routing adjacencies (OSPF/BGP/EIGRP).
- Maintain and optimize Cisco Nexus switching (e.g., 5K/7K/9K), including VPC, HSRP/VRRP, fabric modules, and FEX.
- Support firewall rule changes, NAT, site to site and remote access VPNs; collaborate with security on policy enforcement.
- Ensure network monitoring, alerting, and logging are operational (e.g., SolarWinds, LogicMonitor, ThousandEyes, NetFlow).
- Provide on call support within a rotation and support scheduled after hours changes.
- Plan and execute network changes (migrations, upgrades, code/firmware updates, new site turn ups).
- Implement redundancy and high availability: VPC/MLAG, routing protocol tuning, first hop redundancy, SD WAN HA.
- Contribute to network segmentation and Zero Trust initiatives (ACLs, VRFs, micro segmentation).
- Participate in cloud connectivity projects (ExpressRoute/Direct Connect, Cloud NAT, VPN to AWS/Azure/GCP).
- Automate routine tasks using Ansible/Python, templating, and configuration standards where appropriate.
- Maintain platform documentation, SOPs, knowledge articles, and architectural diagrams.
Must Have
- Platforms: Cisco Nexus (5K/7K/9K), Catalyst (9K/3K), ASA/FTD, Wireless controllers (optional).
- Tools: CLI (IOS/NX OS), SSH, SNMPv3, NetFlow/sFlow, Syslog, Wireshark, SolarWinds/LogicMonitor/PRTG.
- Security: ACLs, device hardening, VPNs (IPsec/AnyConnect), identity/AAA (TACACS+/RADIUS).
- OS & Infra: Solid understanding of DNS/DHCP/NTP/IPAM; basic Linux/Windows networking.
- Documentation: Visio/draw.io; strong written/runbook skills.
- Data Center & Fabric: VXLAN/EVPN, ACI concepts (tenants, contracts, EPGs), spine leaf design.
- SD WAN: Cisco Viptela or Meraki SD WAN.
- Firewalls & NAC: Cisco Firepower, Palo Alto, Fortinet; Cisco ISE/802.1X.
- Cloud & Hybrid: Azure/AWS/GCP networking, load balancers (F5, AVI/NSX ALB), Private Link/ExpressRoute.
- Automation & Scripting: Ansible, Python, Git, CI/CD for network changes, Infrastructure as Code basics.
- Telecom: MPLS, DIA, circuits management, carrier coordination.
- SRE Practices: SLO/SLI for network services, synthetic monitoring, telemetry.
- Strong analytical and problem-solving abilities.
- Excellent communication skills.
- Ability to lead technical discussions and mentor junior engineers.
- Strong documentation and diagramming skills (Visio, Lucidchart, Draw.io).
Education
- Minimum BS/BA degree or equivalent experience.
- Minimum 10 years of progressive experience in infrastructure/network architecture, implementation, troubleshooting, and support.
· Certifications: CCNA (required or equivalent experience), CCNP Enterprise or CCNP Data Center (strong plus), ITIL Foundation (plus).
Frequently Asked Questions
How do I apply for the Senior Network Engineer - Infra, Data Center & Fabric, Juniper position at Astra North Infoteck Inc.?
Use the Apply button above to submit your application directly to Astra North Infoteck Inc.. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Network Engineer - Infra, Data Center & Fabric, Juniper position at Astra North Infoteck Inc. located?
This position is based in Toronto. Astra North Infoteck Inc. has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Network Engineer - Infra, Data Center & Fabric, Juniper at Astra North Infoteck Inc. earn?
Astra North Infoteck Inc. has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Network Engineer - Infra, Data Center & Fabric, Juniper role at Astra North Infoteck Inc. posted?
This role was posted on April 30, 2026 (50 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Network Engineer - Infra, Data Center & Fabric, Juniper role at Astra North Infoteck Inc. require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Astra North Infoteck Inc. lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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