Network Engineer

OnX; Toronto; Hybrid; CAD 110,000 - 150,000; Full time

Job summary

OnX in Toronto is seeking a Network Engineer to design, deploy and optimize high-capacity DWDM transport networks with ROADM architectures. You will provide engineering-level support and collaborate with architects and product teams to implement scalable network solutions.

The ideal candidate brings 7+ years in optical infrastructure, strong knowledge of routing protocols, and hands-on experience with Ciena platforms and NMS tools.

Qualifications

• Extensive DWDM/ROADM experience in carrier/enterprise environments.
• Hands-on with Ciena platforms and related management tools.
• Experience with Fujitsu FLASHWAVE and related equipment is a plus.
• Strong knowledge of TCP/IP routing protocols and MPLS/LDP.
• Familiarity with EVPN, VPLS and network OS (Cisco/Juniper/Arista/Nokia).
• Proficient in network monitoring, NMS systems and incident handling.
• Experience in 24/7 mission-critical networks is desired.

Responsibilities

• Design, provision and maintain long-haul and metro DWDM networks.
• Perform OSNR and dispersion calculations for link budgets.
• Plan and deploy diverse network technologies (routing, switching, VPNs, SD-WAN).
• Provide engineering-level on-call support for incidents and outages.
• Collaborate with Product and Solution teams for service enhancements.
• Conduct root-cause analysis and contribute to RFOs with NOC teams.
• Document procedures, configs and best practices for operations.

Skills

DWDM/ROADM

Ciena platforms

ISP/Telecom experience

Routing protocols

NMS monitoring

Incident response

OSNR calculations

Tools

Ciena MCP

Netsmart

Virtuora

Splunk

Grafana

LibreNMS

Job description

Our client is looking to add a Network Engineer to their team on a full time basis.

Its a hybrid role like 3 days onsite at their Downtown Toronto Location.

Top Skills:

• 7+ years of experience
• Optical Infrastructure: 5+ years of hands‑on experience in DWDM (top preference), CWDM, OTN (G.709), and SONET/SDH platforms in a carrier or enterprise environment.
• Experience with Ciena tools/technologies
• ISP/Telecom experience - hard to find candidates with this background that haven’t worked with Telecom or for vendors that worked closely with telecom clients.

Position Summary

The Network Engineer is responsible for designing, research, deploying, testing, and optimizing high-capacity DWDM and ROADM transport networks. Provide engineer-level support of network infrastructure.

The Network Engineer will report to the Sr. Manager of Network Engineering and work closely with Network Architects and other teams to design and implement advanced network infrastructure technology while ensuring adherence to operational standards and business requirements in accordance with service quality objectives.

The Network Engineer is tasked with designing, deploying and maintaining stable, robust and scalable network infrastructure to both customers and internal teams/partners. The Network Engineer will have subject matter expertise of network infrastructure research, design and deployment as well as expertise with various network products, network protocols, monitoring tools, and best practices.

Key Responsibilities:

• Design, provision, and maintain long-haul and metro DWDM optical networks utilizing multi-degree ROADM architectures.
• Execute link engineering calculations, including OSNR, chromatic dispersion, polarization mode dispersion, and optical attenuation budget.
• Research, plan, design, implement and support a variety of network technologies, including but not limited to routers/routing protocols, switching, route reflection, GPON/XGSPON, KEA DHCP and DHCPv6, EVPN, upstream peering/transit management, Cloud connectivity, firewalls, SD-WAN, voice systems, IPTV/video, Wireless LAN topologies, SSL and IPSec VPN, network security practices and tools, among others.
• Complete research, planning, design and implementation of network infrastructure or new customer solutions.
• Collaborate with Product teams, Customer Solution Engineers and other teams for ongoing service enhancement & feature development.
• Provide Engineering-level on-call support to NOC and guidance for any incidents, outages, degradation or troubles with infrastructure.
• Perform root‑cause analysis on .physical layer fiber faults, optical card failures, and transport degradation events

Preferred Skills:

• Optical Infrastructure: 7+ years of hands‑on experience in DWDM, CWDM, OTN (G.709), and SONET/SDH platforms in a carrier or enterprise environment.
• Ciena Platforms: Hands‑on operational and commissioning experience with Ciena 6500, 6200, Waveserver, RLS, and Ciena MCP (Manage, Control and Plan).
• Fujitsu Platforms: Demonstrated proficiency with Fujitsu FLASHWAVE series (e.g., 9500, 7120, 7500), Fujitsu 1Finity series (e.g., T300, T310, T700) Muxponders and management software such as Netsmart and Virtuora
• Expert level knowledge and practical experience in some of the following topics: TCP/IP routed protocols; routing protocols such as BGP, OSPF, EIGRP, IS-IS; forwarding techniques like MPLS (and elements of their supporting protocol suites like LDP); failure detection and convergence protocols like BFD, STP and LFA); encapsulation mechanisms like EVPN, EoMPLS and VPLS; and high‑level experience working with Network Operating System like Cisco IOS XE, Cisco IOS XR, Juniper JunOS, Arista EOS and Nokia SROS.
• A high level understanding of network protocols like DHCP, DNS.
• Expertise in infrastructure monitoring concepts, tools and NMS systems (eg: Splunk, Greylog, Cacti, LibreNMS, Grafana, Oxidized, Weathermaps, etc.)
• An analytical problem‑solving mindset, delivery focus and client‑orientation are all critical for this role
• Experience in a 24/7 Mission Critical Network Environment, designing, implementing and supporting network infrastructure.

Other Roles and Responsibilities:

Incident Avoidance, Incident Handling, Root Cause Analysis

• Maintain and execute comprehensive procedures to efficiently respond to escalated network incidents.
• Act as an escalation point throughout the duration of any network incidents, as required.
• Root cause analysis investigations, pattern analysis and RFO compilation with collaboration NOC/technical/customer teams, as required.
• Implement solutions to any potential problem areas.
• Assist other technical teams with root cause analysis of incidents, as required.
• Participate/Contribute with after‑hours/weekend rotation as required to provide Engineering‑level support for infrastructure or advanced customer‑facing issues.

Infrastructure Monitoring and Maintenance

• Use real‑time and historical data to facilitate capacity planning and execute resource management, including but not limited to; Core network capacity, fibre capacity, customer-port capacity, ARIN/IP resources, etc.
• Develop & Maintain Advanced (24/7/365) monitoring systems to empower the Engineering, NOC and technical teams to react and respond to incident efficiently and effectively.
• Coordinate and/or execute advanced networking tasks including migrations, upgrades, maintenance, etc. where handing off an MOP is not appropriate.
• Escalation response/management for any network incidents that require escalation from NOC - fibre cuts, power issues, NPOP health, change in environmental conditions etc.
• Conceptualize, Design, Test and Deploy automated networking and network system solutions in collaboration with Network Architects and other technical groups.

Training, Documentation and Reporting

• Author and update Method of Procedure (MOP) documents for all key technical processes, including the deployment of new network services, device configurations, migrations, and troubleshooting practices, ensuring consistent quality and operational excellence across all projects.
• Develop procedures for identifying and addressing front‑line issues that may arise from the deployment of new services or network configurations, ensuring a smooth transition for both internal and external stakeholders.