Senior Engineer

Job Description: Senior Engineer - Networking
Role Overview
The Network Engineer will be responsible for designing, implementing, managing, and securing the organization's network infrastructure across head office and branch locations. This role involves hands-on management of firewalls, switches, wireless access points, VPNs, routing, network security, and cloud integrations. The ideal candidate will have strong expertise in Sophos and Cisco technologies, excellent troubleshooting abilities, and the capability to support a fast-paced IT environment.

Roles & Responsibilities
Firewall & Security Management
Configure, manage, and monitor
Sophos Firewalls (XGS Series)
, including VPN, IPS, NAT, Application & Web Filtering, and HA.

Implement and maintain
Site-to-Site and SSL VPN
connectivity for branches and remote users.

Configure and manage firewall rules, IPS policies, URL filtering, and overall network security posture.

Regularly apply firmware upgrades, patches, and security policy updates.

Switching & Routing
Manage
Cisco Layer 2/3 switches
, including VLAN configuration, port management, trunking, and inter-VLAN routing.

Troubleshoot routing, switching, and connectivity issues across LAN/WAN environments.

Ensure optimal routing performance and network stability across locations.

Wireless Network Management
Manage and optimize wireless networks using
Sophos Central
.

Ensure secure Wi-Fi operations, coverage optimization, and access control.

Troubleshoot wireless connectivity issues and enhance wireless user experience.

Network Performance & Monitoring
Monitor LAN/WAN performance across HO and branch locations.

Use tools such as
SolarWinds, ManageEngine, or similar
to monitor network availability and performance.

Conduct proactive maintenance to prevent downtime and performance degradation.

Cloud & Server Integration
Support integration of network infrastructure with
Microsoft 365, Azure
, and other cloud services.

Assist IT teams with server, mail routing, and cloud networking configurations.

Network Design & Implementation
Design and implement scalable, secure, and resilient network solutions based on business needs.

Evaluate existing infrastructure and recommend upgrades for performance, reliability, and security.

Troubleshooting & Operations Support
Diagnose and resolve daily network issues: user connectivity, routing, switching, VPNs, wireless, and firewall-related problems.

Coordinate with ISPs for link provisioning, outages, performance issues, and bandwidth optimization.

Documentation & Governance
Maintain accurate documentation for network topology, configurations, IP schema, and change logs.

Create troubleshooting guides, SOPs, and configuration records.

Vendor & Stakeholder Management
Coordinate with vendors for hardware/software procurement, support contracts, and network enhancement initiatives.

Work closely with internal IT and systems teams to ensure fully integrated and stable network operations.

Technical Skills & Expertise Required
Core Networking Skills
Strong knowledge of
TCP/IP, DNS, DHCP, VLANs, routing protocols (BGP, OSPF)
, and subnetting.

Experience with
firewalls, routers, managed switches, Wi-Fi APs, and load balancers
.

Firewall & Security Expertise
Hands-on experience with
Sophos Firewall (XGS Series)
and Sophos Central Wireless.

Exposure to
SonicWall, Juniper, Cisco, Aruba, or Ubiquiti
is a plus.

Knowledge of VPN technologies (
IPSec, SSL
), IDS/IPS, and security best practices.

Wireless & Branch Networking
Experience with wireless network design and troubleshooting across multiple sites.

Familiarity with enterprise Wi-Fi systems (Sophos, Cisco, SonicWall, Aruba, Ubiquiti).

Cloud & Advanced Networking
Understanding of
Azure/AWS/Google Cloud
networking.

Experience with
Microsoft 365
mail routing and hybrid connectivity.

Exposure to
SD-WAN
solutions or network automation tools (desirable).

Basic understanding of
VoIP systems
and QoS configurations.

Soft Skills
Strong analytical and problem-solving skills with the ability to work under pressure.

Excellent verbal and written communication skills for cross-functional collaboration.

Ability to document configurations, procedures, and troubleshooting steps clearly.

Required Qualifications & Experience
Bachelor's Degree in
Engineering or a related disciplin
.