Top Network Engineer Jobs in Toronto

Own and operate low-latency network infrastructure for trading systems, including colocation connectivity, exchange feeds, L2/L3 topology, BGP and OSPF routing, PTP synchronization, firewall policies, automation, packet analysis, documentation, and incident response. The role involves designing infrastructure from scratch, managing vendors, building Python tooling, and participating in on-call support within a small network engineering team.

Design and deploy scalable network architectures in cloud environments, manage hybrid connectivity, optimize performance, and ensure compliance with security standards.

Cygnus Professionals Inc. is hiring .NET Developers and other IT professionals to provide solutions and onsite services to customers.

Cygnus is seeking IT professionals for various roles including development, analysis, project management, and engineering to support their IT Solutions Division.

The Global Network Engineer will design, implement, and support network and cloud infrastructure, ensuring adherence to IT standards and security protocols across global locations.

The Network Engineer administers enterprise network infrastructure across offices, data centers, cloud environments, and construction job sites. Responsibilities include managing Palo Alto firewalls, Zscaler access, Cisco switching, wireless networks, Azure networking, Aruba ClearPass, monitoring, vulnerability remediation, incident response, site onboarding, and network transformation projects. The role also requires maintaining technical documentation and collaborating with systems, cloud, security, and service delivery teams.

Own the design, deployment, security, and lifecycle management of Waabi’s multi-site network infrastructure. Responsibilities include switching, routing, wireless, firewalls, ISP planning, incident response, configuration hardening, IP addressing, segmentation, zero-trust access, vehicle connectivity, developer network support, on-premise compute networking, documentation, and disaster-recovery runbooks.

Design, deploy, and operate enterprise network infrastructure across data centers and cloud (GCP, AWS, Azure). Manage VPCs, VPNs, BGP, F5 BIG-IP, hybrid connectivity, and observability. Build IaC and automation with Terraform, GitLab CI/CD, and Ansible. Maintain monitoring, documentation, and participate in on-call support for critical incidents.

Build and design proxy infrastructure from scratch, implement rotation systems, manage IP reputation, optimize for performance, and develop reverse proxy systems for various proxy types.

Design and architect front-end network fabrics for AI/ML and HPC clusters. Automate deployment of network infrastructure, debug networking issues, and lead technical projects across teams.

Design, automate, and operate hybrid cloud and datacenter networks. Develop and maintain Ansible playbooks and automation, troubleshoot connectivity, implement security, monitor systems, and participate in 24/7 on-call escalation for highly available network architectures.

Assist with creating and deploying networking solutions for AI and cloud infrastructure. Analyze industry trends and technical challenges, contribute to strategic roadmaps, and collaborate with academic and industry professionals. The role focuses on AI infrastructure, HPC and data-center networking, including RDMA, protocol optimization, traffic engineering, congestion control, topology design, resource allocation, networking architectures, software architecture, and distributed systems.

Supports and maintains enterprise campus, data center, and WAN networks, including routing, switching, firewalls, VPNs, wireless, cloud connectivity, monitoring, and automation. Troubleshoots network issues, implements after-hours changes, participates in 24x7 on-call coverage, and supports network projects and designs. Collaborates with stakeholders to define requirements and recommend solutions, provides technical support and user training, and works onsite as needed for campus network environments.

Perform L3 network troubleshooting and RCA on production enterprise networks, review telemetry/logs/configs, label and annotate network behaviors for ML training, and help define schemas and data pipelines to support AI-driven infrastructure.

Design, implement, and operate internal and edge networking infrastructure at global scale across multi-cloud regions. Build services, tools, and automation to expose network functionality, improve routing, failover, and scaling. Lead cross-team initiatives including code and design reviews, ensure operational robustness and security hygiene, and participate in on-call rotation.

The Global Network Engineer will design, implement and support network and cloud infrastructure, providing Level 3 support and ensuring security alignment with IKO's standards.

Design, implement, maintain, monitor, and optimize global LAN, SD-WAN and cloud networks. Lead network projects, security hardening, troubleshooting, L2 support, documentation, and mentor team members to ensure reliable, secure enterprise network operations.

Architect and develop scalable, multi-tenant cloud-native networking and security solutions across public, private, and hybrid clouds. Build high-performance traffic management, security policy orchestration, telemetry, threat detection, observability, and cost-optimization systems. Develop production software in Go and PHP, optimize data-plane performance, integrate NGFW and SASE technologies, and guide teams through architecture and delivery.

Design, develop, and maintain Python-based automation and full-stack solutions to improve operational efficiency, automate security and infrastructure workflows, integrate with REST APIs, support CI/CD, and enhance SRE and security controls while collaborating with stakeholders.

Architect and build highly available control-plane network services for TeraWave’s satellite communications network. Design microservices for subscriber provisioning and session management, develop stateful distributed systems across terrestrial data centers and orbital nodes, and optimize SQL, NoSQL, and time-series databases handling billions of telemetry points. The role also involves cloud-native Kubernetes deployments, service mesh, resiliency patterns, event-driven architecture, and large-scale observability.

The Senior Network Engineer will manage and optimize in-house and cloud-based networks, ensuring security and availability while troubleshooting complex network issues.

Provide Level 2/3 network support and engineering: configure and install network devices, perform maintenance and upgrades, monitor performance and capacity, troubleshoot issues, follow change management, implement security tools and policies, and liaise with vendors and IT staff. Contract role based in Mississauga requiring Juniper experience.

The Network Design Engineer is responsible for designing and implementing network solutions, managing WAN technologies, and ensuring security measures are in place. Requires proficiency in various network protocols and firewall technologies.

Design, deploy, and operate secure, automated cloud infrastructure (primarily AWS) and networking. Troubleshoot production issues, build IaC with Terraform/Azure DevOps, drive automation using AI tools, optimize performance and security, mentor junior engineers, participate in on-call rotation, and collaborate with cross-functional teams to deliver reliable cloud platform solutions.

The Principal Hardware Engineer will lead the design of hardware systems for a satellite communications platform, focusing on power distribution, signal integrity, and PCB design, while ensuring high-reliability and fault tolerance in space environments.