Senior Network Engineer at Boardroom Appointments

• Are you an experienced Senior Network Engineer with strong Cisco networking expertise and a passion for maintaining secure, reliable, and efficient enterprise network infrastructure?
• Our client is seeking an experienced Senior Network Engineer to administer, maintain, and support enterprise network infrastructure using predominantly Cisco technologies, ensuring stable, secure, and efficient day-to-day network operations across LAN, WAN, and hybrid environments.
• This is an urgent requirement, and preference will be given to candidates who are available to start immediately or who have a short notice period.

Job Purpose

• To administer, maintain, and support enterprise network infrastructure using predominantly Cisco technologies, ensuring stable, secure, and efficient day-to-day network operations across LAN, WAN, and hybrid environments.

Key Responsibilities
Network Operations

• Monitor network availability, performance, and capacity.
• Perform routine maintenance, upgrades, and patching.
• Configure and manage Cisco routers and switches.
• Maintain LAN, WAN, Wi-Fi, and VPN connectivity.

Configuration & Administration

• Configure VLANs, trunking, and IP addressing schemes.
• Manage routing protocols (OSPF, EIGRP – basic to intermediate level).
• Administer DHCP, DNS, and IP management.
• Maintain configuration backups and version control.

User & Service Support

• Provide 1st and 2nd line network support.
• Troubleshoot connectivity issues (LAN, Wi-Fi, VPN, internet and VoIP).
• Support Service Desk in resolving network-related incidents.
• Assist in onboarding of new systems and users.

Incident & Problem Management

• Log, track, and resolve incidents within SLA.
• Perform root cause analysis for recurring issues.
• Escalate complex issues to Network Engineers or vendors.
• Participate in major incident resolution processes.

Security Administration

• Apply firmware updates and security patches.
• Configure basic firewall rules (Cisco ASA / FortiGate).
• Monitor network for anomalies and vulnerabilities.
• Support compliance with IT security policies and standards.

Monitoring & Reporting

• Use monitoring tools (e.g. SolarWinds, PRTG, CheckMK).
• Generate network performance and availability reports.
• Proactively identify and resolve performance degradation.

Documentation

• Maintain network diagrams and topology documentation.
• Update configuration records and asset registers.
• Develop and maintain SOPs and operational procedures.

Minimum Requirements
Qualifications
Minimum

• Relevant Degree / Diploma in IT, Networking, or Engineering.

Preferred Certifications

• Cisco Certified Network Associate (CCNA).

Highly Advantageous

• Cisco Certified Network Professional (CCNP Enterprise).

Experience

• 5–8 years' experience in enterprise environments.

Proven ability to:

• Manage network infrastructure independently.
• Troubleshoot complex issues across LAN/WAN.
• Support high-availability environments.

Experience with:

• MPLS and multi-site connectivity.
• Firewall and WAN failover configurations.
• Supporting DR/BCP environments.
• Strong vendor engagement (ISPs, Cisco partners).

Technical Skills

• Core Networking Skills

Strong understanding of:

• TCP/IP, subnetting, DNS, DHCP.
• VLANs, STP, trunking.
• Routing fundamentals (OSPF, EIGRP).
• Cisco Technologies
• Cisco IOS configuration and troubleshooting.
• Cisco Catalyst switching (Layer 2 / Layer 3).
• Basic Cisco router configuration.
• Exposure to Cisco wireless solutions (WLC – advantageous).
• Network Security
• Basic firewall configuration (ACLs, NAT).
• VPN technologies (site-to-site, remote access).
• Understanding of network segmentation and access control.
• Connectivity & WAN
• MPLS, broadband, DIA circuits.
• VPN connectivity and failover mechanisms.
• Basic QoS concepts.
• Monitoring & Tools
• Network monitoring platforms (SolarWinds, PRTG, CheckMK).
• Log analysis and troubleshooting tools.
• Packet capture basics (Wireshark – advantageous).

Key Competencies

• Strong troubleshooting and analytical thinking.
• Attention to detail.
• Good communication and user support skills.
• Ability to work under pressure in incident situations.

What's on Offer

• Initial 6-month contract with the potential to be extended to 12 months.
• Fully on-site position based in Roodepoort.
• Opportunity to support and maintain enterprise network infrastructure using predominantly Cisco technologies.