Minimum Requirements:

• Five or more years related experience as a Senior Network Engineer or Network Administrator
• Experience with Cisco IOS, Extreme XOS and other router/switch/firewall operating systems
• Strong Linux based system administration background (especially virtualisation, containerisation and cloud platforms)
• Understanding of switching services such as (but not limited to) STP, VLAN, QinQ, COS, Switch Stacking, LACP and RSPAN.
• Based on your designs, deliver customer solutions to agreed timescales, quality, and budget operating with a high degree of technical autonomy and self-administered technical project management.
• Deep working knowledge of networking principles and technologies, ideally with specific experience of core internet routing technologies and associated infrastructure
• Knowledge of scripting languages (ideally Python/Bash)
• Professional certification is advantageous (e.g. CCNA, CCNP, CCDP, CCIE or equivalent), however, industry experience is also considered
• Designing Service Provider networks utilising BGP, VXLAN/EVPN, OSPF, VRF, MPLS, etc.
• In-depth understanding of communication protocols with advanced knowledge of Layer 2 and Layer 3 technologies
• Experience of open-source log analysis, configuration management and monitoring tools (e.g. ELK, Graylog, Ansible, Rancid, Nagios, Icinga, etc.)
• Experience with network security, and implement MANRS best practices according to standard

Responsibilities:

• Design, deploy, support, and maintain core network for Internet hosting business and support functions (office, VPN, etc.)
• Thorough knowledge of IT infrastructure, TCP/IP, networking and information system security principles, practices, and technologies.
• Research and analyse new network technologies as well as write proposals for upgrades of network infrastructure
• Good analytical skills with the ability to document and present highly technical information in a coherent and informative manner
• A passion for writing documentation and training other staff on operating platforms after they have been implemented
• Work with wider sysadmin team on integrating network functions into service offering
• Demonstrable; in-depth technical expertise within an ICT environment consisting of extensive hands-on support and management of network infrastructure, including routers, switches, firewalls, load balancers, and other related devices.
• Monitor network performance and integrity with appropriate escalation paths set up
• Third-tier support of network issues
• Automate network tasks and monitor their effectiveness; maintain technical documentation
• Coach, train, and mentor team members on networking topics
• Architecting, deploying, maintaining, and scaling platforms
• Create, oversee, and test network security measures
• Write and implement networking protocols company-wide and within department policies and procedures
• Suggest improvements to network performance, capacity, and scalability
• Participate in business continuity and disaster recovery infrastructure planning, building and testing
• Participate in the design, engineering, and delivery of IT projects
• Be part of and support the wider system administrator team
• Experience with containerization
• Experience in automating with ansible other tools
• Experience in administering and automating highly available Linux-based platforms preferably in a virtualised environment
• Proven ability and interest in picking up new technologies quickly, leading evaluations and providing suggestions of key technologies to base future development around
• An ability to explain and articulate technical detail clearly to technical management and developers
• Experience with coding, ideally backend services in PHP, Python, reasonable understanding of web technologies

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