24/7 L2 Network & Security Engineer (Managed Services) in London

Nomios' mission is to build a ‘secure and connected’ future. Organisations across the globe depend on us to help secure and connect their digital infrastructures. We are expanding in the UK and are welcoming a talented Network and Security Engineer to our Services Team on a 24/7 shift rota. This is a fantastic opportunity for an engineer ready to move to the next level of their career while collaborating with a team of technical experts and working with top-tier industry vendors, including Juniper, ADVA, and Fortinet. Join us and be part of delivering service excellence to our customers!

Your role as a Network and Security Engineer will include:

• Network Monitoring & Incident Management: Monitor Nomios customer network infrastructures (routers, switches, firewalls, servers) using various NOC tools; identify, troubleshoot, and resolve network issues affecting service availability, performance, and reliability; respond to alerts and notifications to ensure incidents are resolved promptly within defined SLAs; escalate unresolved issues to the appropriate technical teams, vendors, or third parties as needed.
• Ticket Management: Manage and track incidents, problems, and change requests using the ticketing system (e.g., Salesforce, ServiceNow, NetAdmin, JIRA, or Remedy); ensure all tickets are updated in a timely manner with relevant information, actions taken, and status changes; prioritise tickets based on severity and impact, ensuring that issues are escalated and resolved within SLA; collaborate with other teams to ensure that all tickets are handled effectively from creation to resolution.
• Troubleshooting & Root Cause Analysis: Conduct initial diagnostics, network testing, and troubleshooting for any detected or reported incidents; perform root cause analysis for recurring network issues and recommend improvements or solutions.
• Change Management & Maintenance: Participate in scheduled maintenance windows, supporting planned network changes and upgrades; ensure all changes adhere to the change management process and do not negatively impact service continuity; document all actions taken and communicate updates during maintenance activities.
• Customer Support & Communication: Act as the first point of contact for customers, responding to their technical queries and requests; provide clear and professional communication with internal teams and external clients during incidents or outages; liaise with customer internal teams to gather and share relevant information for efficient incident resolution.
• Service Improvement & Reporting: Provide daily, weekly, and monthly reports on network performance, incidents, and operational metrics; identify areas for service improvement, including automation opportunities and tool enhancements; work proactively to suggest network optimisations and infrastructure improvements.

We hire smart, high-energy people with a passion for excellence. As a highly motivated team player, you should possess excellent communication skills. A strong desire for continuous learning and self-improvement is essential. To succeed in this role, you must be able to demonstrate the skills and competencies required to deliver exceptional performance in the responsibilities outlined above.

Additional requirements:

• Excellent verbal and written communication skills, with the ability to provide clear updates to both technical and non-technical stakeholders.
• Good understanding and hands-on experience of working on IP, OSPF, BGP, and MPLS based networks (ideally Juniper-focused).
• Good understanding of Carrier Ethernet MEF2.0 & MEF3.0 concepts such as Eline, ELAN, etc.
• Good understanding of optical CWDM and DWDM technologies.
• Good understanding of optical splitter/combiner filters.
• Exposure to GPON & XGSPON access networks.
• Good experience with ticketing systems such as Salesforce, ServiceNow, NetAdmin, etc., and proven efficiency in handling ticketing queues.
• Knowledge of network monitoring tools such as SolarWinds, Nagios, Zabbix, or similar.
• Hands-on experience of working with ADVA, SmartOptics, Nokia, or Ciena kit would be advantageous.
• Hands-on experience of building and maintaining Dell/HP servers would be advantageous.
• Experience working with ITIL methodology and meeting SLAs.
• Juniper or Cisco Specialist/Professional level certifications would be advantageous.

This role is home-based with occasional visits to the office in Basingstoke. Hours are based on 12-hour shifts: 2 days, 2 nights; 4 days/nights off. Flexibility with hours will be required in the event of a major incident.

Why join Nomios: You will work in a dynamic, fast-paced environment where you are free to use your initiative in support of our strategic objectives. You will work alongside high calibre sales, technical, and operational experts as part of a supportive, tight-knit team, within which every individual has an important part to play and makes a real difference. Nomios offers a highly competitive remuneration scheme along with industry-leading benefits.

Nomios is an equal opportunity employer and is committed to creating and sustaining an environment in which everyone is provided with an equal opportunity to grow and develop, and no individual will be unjustly discriminated against. This includes, but is not limited to, discrimination because of age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion and belief, sex and sexual orientation.