Senior Network Engineer

Auxilion; Belfast City District; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Car Allowance

BUPA Health Insurance

Company Pension

25 Days Annual Leave

Staff Discount

Job summary

Auxilion is seeking a Senior Network Engineer to join the team in Belfast. You will provide senior operational support and BAU ownership for network and security solutions across the customer base.

The role requires extensiveCisco and Fortinet experience, with on-call responsibilities and a focus on service improvement. On-site in Belfast with limited remote work potential.

Qualifications

• Extensive experience with enterprise or government networks
• Strong knowledge of Cisco LAN/WAN/WLAN and Fortinet platforms
• Demonstrated ability to troubleshoot complex network issues

Responsibilities

• Provide senior-level operational support for enterprise network and security services.
• Act as technical escalation point and SME for complex issues.
• Own incident resolution and ensure timely restoration of services.

Skills

Cisco networking

Fortinet security

LAN/WAN/WLAN

SDA/ACI

ISE/DNAC

SASE/ Fortinet

Security technologies

Education

Third level degree in Computer Science/IT

CCNP certification

Tools

Cisco DNAC

Fortinet FortiGate/ FortiSASE

Job description

Market leading telecommunications and digital connectivity provider requiresd a Senior Network Engineer to join the team at their offices in Belfast.

The Senior Network Engineer will provide senior-level operational support and business-as-usual (BAU) service ownership for network and security solutions deployed across the assigned customer base. Acting as a technical escalation point and subject matter expert, the role will support strong customer outcomes, continual service improvement and effective knowledge transfer across the Operations Team.

Prospective candidates must have substantial experience across Cisco LAN, WAN, WLAN, SDA, SNA, ISE, DNAC and ACI technologies, together with knowledge and demonstrable support experience across Fortinet FortiGate, FortiSwitch, FortiWireless and FortiSASE.

This role is permanent, and comes with a range of benefits including Annual Bonus: 0-10% (Performance & Company Related), Car Allowance: £4,000, BUPA Health Insurance (For employee and Family) Company pension (4% EE contribution and 6% ER contribution or 6% EE contribution and 9% ER contribution), 25 days Annual Leave and Staff Discount on company products

Please note – This role will primarily be onsite, so prospective candidates will need to be resident in locations that are a reasonable distance to and from Belfast. Full time remote working options are not available for the foreseeable future.

Responsibilities of Role

• Provide senior-level operational support for enterprise network and security services, acting as a technical escalation point for complex issues.
• Support and maintain Cisco networking environments (LAN, WAN, WLAN, SDA, ACI, ISE, DNAC, SNA) and Fortinet security platforms.
• Own incident resolution activities, ensuring timely restoration of services and effective stakeholder communication.
• Lead technical troubleshooting, root cause analysis and implementation of corrective and preventative actions.
• Plan, assess, implement and validate changes in accordance with established change management procedures.
• Perform maintenance, patching, upgrades and lifecycle management to ensure secure and reliable services.
• Proactively monitor network performance, capacity, availability and security, taking action to prevent service disruption.
• Maintain accurate operational documentation, configurations, procedures and knowledge-base content.
• Contribute to service reviews by identifying trends, risks and service improvement opportunities.
• Act as a trusted technical advisor to customers, understanding their environments and operational priorities.
• Collaborate with internal teams, vendors, carriers and partners to resolve faults and maintain service continuity.
• Participate in an on-call rota, support service improvements, and mentor colleagues to enhance operational capability.
• Third level degreee in Computer Science, IT or other area relevant to the role (Significant experience along with relevant professional certification like CCNP may also suffice)
• Demonstrable expertise or certification in Cisco networking (CCNP level or equivalent practical experience).
• At least four years' experience supporting enterprise or government customers in commercial support or managed service environments.
• Practical Cisco security experience and/or relevant Cisco security accreditation.
• Practical Fortinet experience and/or Fortinet certification (FCA, FCP, FCCS or FCX).
• Experience supporting WAN technologies, including MPLS, Internet connectivity, L2VPNs and related access services.
• Strong knowledge of cyber security technologies including firewalls, IPS, UTM, SASE, ZTNA and cloud security solutions.
• Proven troubleshooting skills across enterprise LAN, Wi-Fi and data centre networking environments, including Cisco ACI.
• Strong understanding of incident, problem and change management, including root cause analysis and controlled implementation.
• Ability to analyse monitoring alerts, logs and performance data and translate findings into effective technical actions.
• Experience producing and maintaining high-quality operational documentation using tools such as Excel, Visio and Word.
• Excellent communication, stakeholder management and prioritisation skills, with willingness to participate in a 24x7 on-call support rota and maintain professional certifications.

IMPORTANT! All applicants must have UK right to work status as our client cannot provide any kind of Visa or Work Permit sponsorship at present.