Senior Network Engineer (AWS)

Optimal Growth Technologies; Cape Town; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

Optimal Growth Technologies in Cape Town is seeking a Senior Network Engineer with extensive AWS expertise to design, implement and optimize enterprise networking across on-premises and cloud environments.

This hands-on role requires strong troubleshooting, collaboration with cloud, security and infrastructure teams, and the ability to maintain documentation and diagrams. Onsite position with a 12-month contract.

Qualifications

• 10+ years of enterprise network engineering experience.
• Expertise in networking technologies and infrastructure design.
• Strong practical experience with AWS networking.
• Advanced routing and switching knowledge: BGP, OSPF, TCP/IP, VLANs.
• Experience with enterprise firewalls, VPNs and network security.
• Proven ability to troubleshoot complex network issues.
• Experience in large-scale enterprise environments.
• Excellent verbal and written communication.
• Ability to work independently and with technical teams.
• Must be available to work onsite in Cape Town.

Responsibilities

• Design, implement and maintain secure, scalable and highly available enterprise network infrastructure.
• Configure, manage and troubleshoot routers, switches, firewalls and network connectivity.
• Support AWS cloud networking and integration with on-premises infrastructure.
• Manage LAN, WAN, VPN and hybrid network environments.
• Troubleshoot complex network performance, routing, connectivity and security issues.
• Support network infrastructure upgrades, migrations and optimisation initiatives.
• Implement network security, redundancy and disaster recovery best practices.
• Monitor network performance, availability and capacity.
• Collaborate with infrastructure, cloud, security and technical teams to deliver network solutions.
• Maintain technical documentation, network diagrams and configuration standards.
• Provide advanced Level 3 technical support and incident resolution.

Skills

Enterprise networking

AWS networking

Routing & switching

Troubleshooting

Communication

Independent work

Team collaboration

Tools

AWS VPC

Transit Gateway

Direct Connect

Site-to-Site VPN

Job description

Job Description – Senior Network Engineer (AWS)

Location: Cape Town – Onsite

Contract Duration: 12 Months (Dedicated, Full-Time Role)

Experience: 10+ Years

Role Purpose

We are seeking a highly experienced and technically skilled Senior Network Engineer with extensive expertise in enterprise networking technologies and Amazon Web Services (AWS).

The successful candidate will be responsible for designing, implementing, maintaining and optimising complex network infrastructure across enterprise and cloud environments. This is a senior, hands‑on technical role requiring advanced networking knowledge, strong troubleshooting capabilities and excellent communication skills.

Key Responsibilities

• Design, implement and maintain secure, scalable and highly available enterprise network infrastructure.
• Configure, manage and troubleshoot routers, switches, firewalls and network connectivity.
• Support AWS cloud networking and integration with on-premises infrastructure.
• Manage LAN, WAN, VPN and hybrid network environments.
• Troubleshoot complex network performance, routing, connectivity and security issues.
• Support network infrastructure upgrades, migrations and optimisation initiatives.
• Implement network security, redundancy and disaster recovery best practices.
• Monitor network performance, availability and capacity.
• Collaborate with infrastructure, cloud, security and technical teams to deliver network solutions.
• Maintain technical documentation, network diagrams and configuration standards.
• Provide advanced Level 3 technical support and incident resolution.

Minimum Requirements

• 10+ years of extensive hands‑on experience in enterprise network engineering.
• Exceptional knowledge of networking technologies, infrastructure design and implementation.
• Strong practical experience with AWS networking technologies.
• Advanced understanding of routing and switching protocols, including BGP, OSPF, TCP/IP and VLANs.
• Experience with enterprise firewalls, VPNs and network security.
• Proven ability to troubleshoot and resolve complex network infrastructure issues.
• Experience supporting large-scale enterprise networking environments.
• Excellent verbal and written communication skills.
• Ability to work independently and collaborate effectively with technical teams.
• Must be available to work onsite in Cape Town.

Preferred Technical Skills & Certifications

• Cisco CCNP or CCIE certification advantageous.
• AWS Certified Advanced Networking – Specialty.
• Experience with AWS VPC, Transit Gateway, Direct Connect and Site-to-Site VPN.
• Knowledge of Cisco, Palo Alto or other enterprise networking technologies.
• Experience with network monitoring and performance management tools.
• Network automation and scripting experience advantageous.

Key Competencies

• Advanced networking and infrastructure expertise
• Strong technical troubleshooting and problem-solving
• Network architecture and solution design
• AWS cloud networking knowledge
• Excellent communication and stakeholder engagement
• Strong analytical and decision‑making abilities
• Ability to work effectively under pressure
• Attention to detail and technical documentation