Network Engineer
Listing reference: ecn_000017
Listing status: Online
Apply by: 10 July 2025
Position summary
Industry: IT & Internet
Job category: Network Operations and Maintenance
Location: Midrand
Contract: Permanent
Remuneration: Market Related
EE position: Yes
Introduction
The Network Engineer will be part of the ECN Core Network Team. This role is responsible for the daily technical maintenance and operation of the core network, as well as the successful execution and completion of network projects within agreed timelines.
Job description
- Ensure high availability of the core network with regular failover testing; make recommendations to Head of Networks
- Monitor core network capacity; identify and perform upgrades with Head of Networks' approval
- Optimise routing for cost and service availability (e.g. use of free peering)
- Efficiently route customer traffic; detect anomalies using tools like Sandvine DPI
- Configure Core Network infrastructure correctly on IRIS; ensure appropriate alerts via Telegram and SMS
- Proactively identify and mitigate real or potential network security threats
- Ensure backups of all core hardware per policy and keep IOS versions up-to-date
- Support team in preparing network diagrams and incident reports for customers
- Follow up on upstream provider issues until resolved
- Document and store configurations of core router deployments for future use
- Participate in network upgrade, change projects, and new provider onboarding within agreed timeframes
- Understand and support all ECN products and services
- Maintain emergency spare part inventory for ECN core infrastructure
- Be knowledgeable about subcontractor support contacts and know how to engage them
Minimum requirements
- Cisco CCNA (Required)
- Cisco CCNP (Required)
- Juniper JNCIA Junos (Required)
- JNCIS-ENT/SP or equivalent (Required)
- Sophos / FortiGate (Advantageous)
- MTCNA (Advantageous)
- At least 5 years of relevant work experience
Competencies:
- Design, implement, and maintain core network infrastructure across multiple regions
- Act as the escalation point for network-related issues, providing prompt resolution and expertise
- Be available on standby for urgent network concerns outside of regular hours
- Collaborate with cross-functional teams to integrate new technologies and services
- Mentor and train junior engineers
- Maintain accurate network diagrams and documentation
- Prepare change control documentation, following protocol and obtaining required approvals
- Deep knowledge of Cisco and Juniper routing and switching platforms used in the ECN core network
- Strong troubleshooting skills on core equipment and with upstream providers
- Solid understanding of VOIP deployment on the ECN network
- In-depth knowledge of ISP services such as internet access
- Working knowledge of network security and firewalls
- High accuracy in problem-solving
- Ability to perform under pressure