Senior Network Engineer

Job Title: Network Engineer (Freelance)

Project Description:

We are seeking an experienced Network Engineer to support the implementation and maintenance of enterprise-level network infrastructure. The role involves designing, deploying, and securing complex Layer 2/3 networks, ensuring high availability, security, and performance across data centres and WAN environments.

Responsibilities:

• Execute implementation plans for Layer 2/3 enterprise networks, including Spanning Tree, VLANs, VPCs, Port Channels, redundant ISP connectivity, and WAN integration.
• Administer, maintain, and troubleshoot networks and related environments (hardware, software, configurations).
• Deploy and manage site-to-site and client-based VPNs, configure IPsec, and maintain MPLS tunnels.
• Implement and update firewall perimeters and network protection plans.
• Perform network segmentation and secure VPN/Zero Trust Network Access (ZTNA) deployment.
• Conduct initial assessments, refine firewall rules, block IOCs, and patch network appliances.

Required Skills & Experience:

• Hands-on experience with network protocols: TCP/IP, EIGRP, OSPF, BGP, MPLS, VLANs, Wireless LANs, VPN.
• Strong knowledge of routing and switching protocols, WAN technologies (MPLS, Point-to-Point, MAN, Wireless), LAN design standards, and data center network design.
• Familiarity with security standards and ASA firewall best practices.
• Excellent communication skills for presenting complex findings to stakeholders.
• Customer service and solution-oriented mindset.
• Minimum 2 years of relevant experience.

Key Components of the Role:

• Firewall rule analysis and refinement.
• Blocking Indicators of Compromise (IOCs).
• Traffic control for ingress/egress.
• Appliance patching and updates.
• Network segmentation for critical systems.