Intermediate to Senior Network Designer to design and evolve IT and OT Cisco network infrastructure
Job in
Calgary, Alberta, T3S, Canada
Listing for:
S.i. Systems
Contract
position
Listed on 2026-06-23
Job specializations:
-
IT/Tech
Systems Engineer, Network Engineer, Cloud Computing: Infrastructure & Operations, Cybersecurity
Job Description & How to Apply Below
Position: Intermediate to Senior Network Designer to design and evolve IT and OT Cisco network infrastructure (21236)
Our large, enterprise Oil & Gas industry client is seeking an Intermediate to Senior Network Designer to design and evolve IT and OT Cisco network infrastructure.
Join a technical team driving modern network design across a major oil & gas organization. This role focuses on scalable, resilient, and secure network architecture supporting enterprise operations and transformation initiatives. The position offers visibility across project teams and architecture stakeholders within a hybrid environment. Candidates will contribute to design leadership for complex, multi-site infrastructure programs.
Duration: 6-month initial contract with a possibility of extension
Working model:
Hybrid in downtown Calgary (3 days onsite/ 2 days remote)
Must Haves
5+ years in Cisco
network design
, network engineering
, or architecture for enterprise-scale environmentsStrong proficiency in routing protocols (BGP, OSPF, EIGRP) and Layer 2/3 technologies such as VLANs
, VXLAN
, and MPLSExperience designing WAN
, SD-WAN
, and data center networking architecturesHands-on or design-level experience with network security including firewalls, segmentation, and access controlExperience working in multi-site, hybrid, or cloud-connected environmentsNice to Haves:
Experience with SDN and intent-based networkingExposure to network observability or telemetry platformsBackground in large enterprise or service provider environmentsCCNP / CCIE certificationFamiliarity with automation and scripting (Python, Ansible)Responsibilities:
Design and develop scalable network solutions across LAN, WAN, and data center environmentsProduce HLD and LLD documentation supporting implementation teamsCollaborate with architecture, project, and operations teams to deliver network initiativesEvaluate and recommend network technologies and vendorsEnsure designs comply with enterprise security and architecture standardsSupport troubleshooting and optimization activities with operations teamsMaintain accurate network diagrams and documentation
Position Requirements
10+ Years
work experience
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