Senior Network Infrastructure Technician

Placements24; Sandton; Hybrid; ZAR 700,000 - 1,200,000; Full time

Benefits offered by this job

Competitive salary

Remote work flexibility

Health insurance

Retirement plan

Professional development

Remote equipment provided

Generous leave

Job summary

Placements24 in Sandton, Gauteng, seeks a Senior Network Infrastructure Technician to design, implement, and maintain robust network infrastructure for diverse clients. The role combines on-site coordination with significant remote work flexibility.

The ideal candidate has 7+ years in network administration, hands-on with Cisco/Juniper/Fortinet gear, strong TCP/IP, routing (BGP/OSPF), VPNs and security practices, and excellent communication skills.

Qualifications

• Degree or diploma in IT/CS or equivalent work experience.
• Minimum 7 years in network administration and infrastructure.
• Proficient with TCP/IP, BGP/OSPF, VPNs, and security principles.
• Experience with enterprise hardware from Cisco/Juniper/Fortinet.

Responsibilities

• Design, install, configure, and maintain complex network infrastructure.
• Monitor performance, identify bottlenecks, and optimize speed and reliability.
• Develop and implement network security measures against threats.
• Troubleshoot and resolve network issues to minimize downtime.
• Manage network documentation, IP addressing, and configurations.
• Plan and execute upgrades and migrations.
• Provide guidance to junior technicians and IT staff.
• Stay updated with emerging networking technologies.

Skills

TCP/IP & routing

VPNs

Network security

Troubleshooting

Communication skills

Education

Degree in IT

Tools

Cisco gear

Juniper gear

Fortinet gear

SolarWinds

Job description

About the Role

Our client, a leading telecommunications and IT solutions provider headquartered in Sandton, Gauteng, is seeking a highly experienced Senior Network Infrastructure Technician. This role is critical for designing, implementing, and maintaining robust and scalable network infrastructure for a diverse client base. The ideal candidate will possess a deep understanding of networking protocols, hardware, and security best practices. This is an outstanding opportunity for a seasoned IT professional to take on a challenging role within a fast-paced, innovative company in Gauteng. While the company is based in Sandton, this position offers significant remote working flexibility, allowing you to manage critical network operations from an approved remote location.

Key Responsibilities

• Design, install, configure, and maintain complex network infrastructure, including routers, switches, firewalls, and wireless access points.
• Monitor network performance, identify bottlenecks, and implement solutions to optimize speed and reliability.
• Develop and implement network security measures to protect against unauthorized access and cyber threats.
• Troubleshoot and resolve network issues, ensuring minimal downtime for clients.
• Manage network documentation, including diagrams, IP addressing schemes, and configuration details.
• Plan and execute network upgrades and migrations.
• Provide technical support and guidance to junior network technicians and IT support staff.
• Stay current with emerging networking technologies and industry trends.
• Participate in on‑call rotation for emergency network support.
• Collaborate with cross‑functional teams to ensure seamless integration of network services with other IT systems.

Requirements

• A relevant degree or diploma in Computer Science, Information Technology, or a related field, or equivalent work experience.
• Minimum of 7 years of experience in network administration and infrastructure management.
• In‑depth knowledge of TCP/IP, routing protocols (e.g., BGP, OSPF), VPNs, and network security principles.
• Experience with enterprise‑level network hardware from vendors such as Cisco, Juniper, or Fortinet.
• Relevant industry certifications such as CCNA, CCNP, Network+, or Security+.
• Strong troubleshooting skills and ability to work under pressure.
• Excellent communication and interpersonal skills, with the ability to explain technical concepts clearly.
• Demonstrated ability to work effectively in a remote or hybrid work environment.
• Experience with network monitoring tools (e.g., SolarWinds, Nagios).
• Must be a South African resident.

Benefits

• Highly competitive annual salary and potential for performance bonuses.
• Significant flexibility with remote work arrangements.
• Comprehensive health insurance and retirement savings plan.
• Opportunities for professional development, certifications, and continuous learning.
• Exposure to cutting‑edge network technologies and large‑scale projects.
• A dynamic and collaborative team culture, even in a remote setting.
• Generous annual leave and paid time off.
• Company‑provided equipment for remote work.