Senior Network Architect

2 days ago

Cape Town, Western Cape, South Africa RareCruit Full time
Job Title: Senior Network Engineer

We are seeking an experienced Senior Network Engineer to join our team at RareCruit, a leading web hosting company. The ideal candidate will take responsibility for maintaining the core network, aligning it with business objectives, and ensuring scalability, reliability, and performance.

Key Responsibilities:
  • Design, deploy, support, and maintain the core network for an internet hosting business and office functions (VPN, etc.).
  • Thorough knowledge of TCP/IP, networking, and information system security principles.
  • Research and propose upgrades for network infrastructure.
  • Document and present highly technical information in a clear and informative manner.
  • Write and maintain network documentation; train staff on network operations.
  • Collaborate with the system administration team to integrate network functions.
  • Hands-on management of network infrastructure including routers, switches, firewalls, load balancers, and other devices.
  • Automate network tasks and maintain network monitoring tools.
  • Provide third-tier support for network issues.
  • Architect, deploy, and scale platforms while ensuring security measures are implemented and tested.
  • Coach and mentor team members on networking.
  • Contribute to business continuity and disaster recovery planning and testing.
  • Stay current on network technologies and trends, proposing new solutions for performance and scalability.
Technical Expertise:
  • Extensive experience managing and administering network infrastructures in a Linux-based environment, with a focus on virtualisation and containerisation.
  • Deep understanding of BGP, OSPF, and other network protocols.
  • Proven experience with Cisco IOS, Extreme XOS, and other router and switch operating systems.
  • Strong background in network automation tools such as Ansible and Python/Bash scripting.
  • Experience with network security best practices and open-source log analysis and monitoring tools (e.g., ELK, Graylog, Nagios, Icinga).
  • Understanding of Layer 2 and Layer 3 technologies (e.g., STP, VLAN, LACP, QinQ, etc.).
Qualifications:
  • 5+ years of experience as a Senior Network Engineer or Network Administrator.
  • Professional certifications (e.g., CCNA, CCNP, CCIE, or equivalent) are advantageous but not essential.
  • Experience designing networks in service provider environments, utilizing BGP, VXLAN/EVPN, OSPF, MPLS, etc.
Key Competencies:
  • Self-directed with a positive, can-do attitude.
  • Strong organizational and mentoring skills.
  • Ability to work independently and within a team.
  • Demonstrated problem-solving skills and attention to detail.
  • Excellent verbal and written communication skills.
  • Commercial acumen with the ability to interpret complex business models.

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