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Network Security Engineer
Network Security EngineerAstra North Infoteck Inc. • Toronto, ON, ca
Network Security Engineer

Network Security Engineer

Astra North Infoteck Inc. • Toronto, ON, ca
8 days ago
Job type
  • Full-time
Job description

Work Type: Hybrid (3 days)

Experience Level: 5-9 Years

Top 3 Required Skills:
1. Cloud Network Engineer
2. Terraform Knowledge
3. CI/CD pipeline

Job Description:
Design, implement, secure, and operate cloud networking (VPC/VNet, hybrid connectivity, routing, firewalls, private access, load balancing) with a strong focus on Infrastructure as Code (IaC) using Terraform. Ensure high availability, compliance, observability, and cost efficiency across environments (Dev → Prod).
________________________________________
Core Responsibilities
1) Cloud Network Architecture & Design
• Design VPC/VNet topologies: CIDR planning, subnets, route tables, NAT/IGW/ER/Direct Connect, DNS (public/private).
• Define hybrid connectivity: Site to Site VPN, ExpressRoute/Direct Connect, Transit architectures, SD WAN integration.
• Architect resilient and secure network paths (multi AZ/region, hub and spoke, segmentation/micro segmentation).
• Produce HLD/LLD, network diagrams, decision logs, and reference patterns aligned to enterprise standards.
2) Implementation & Configuration (Azure / AWS)
• Build and configure:
o Azure: VNets, Subnets, NSGs, UDRs, Azure Firewall, Application Gateway/WAF, Private Endpoints, Route Server.
o AWS: VPCs, Subnets, Route Tables, IGW/NAT, Security Groups/NACLs, ALB/NLB, Transit Gateway, PrivateLink.
o (GCP as applicable: VPCs, firewall rules, Cloud Router, Cloud NAT, load balancing)
• Implement DNS (Azure DNS/Route 53/Cloud DNS), IPAM hygiene, and name resolution across hybrid.
3) Security & Compliance by Design
• Enforce least privilege and network segmentation, zero trust patterns, and WAF/DDoS protections.
• Implement private access patterns (Private Link/Private Endpoints/Service Endpoints) to avoid public exposure.
• Partner with security/GRC for threat modeling, control mapping, evidence collection, and remediation.
4) Operations, Monitoring & Troubleshooting
• Enable observability: VPC Flow Logs / NSG Flow Logs, Network Watcher, CloudWatch/CloudTrail, Log Analytics; build dashboards and alerts.
• Troubleshoot latency, packet loss, asymmetric routing, MTU/MSS, and TLS/WAF issues.
• Participate in incident, problem, and change management with clear runbooks and post incident reviews.
5) Infrastructure as Code (Terraform First)
• Author and maintain Terraform modules for reusable network patterns (VPC/VNet, TGW, firewalls, private endpoints).
• Implement environment promotion via workspaces or pipelines; parameterize with tfvars.
• Enforce state management (remote backend, state locking), versioning, code reviews, and policy as code (Sentinel/OPA).
• Integrate Terraform in CI/CD pipelines (Azure DevOps/GitHub Actions/GitLab/Jenkins) with plan/apply gates and approvals.



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Network Security Engineer • Toronto, ON, ca

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