Daniel Lester
Coventry,Warwickshire
Summary
2nd Line NOC Engineer with expertise in enterprise LAN/WAN operations and advanced routing protocols including BGP, OSPF, and MPLS. Proven ability to troubleshoot complex network issues and implement impactful changes while ensuring secure and resilient services. Extensive experience with Fortinet firewalls, VPNs, and large-scale wireless environments.
Overview
5
5
years of professional experience
Work history
2nd Line NOC Engineer
Glide
Birmingham
02.2024 - Current
- Provide 2nd-line support for incidents and changes across large-scale enterprise LAN environments, covering end-user devices through to core routing and switching infrastructure.
- Troubleshoot and resolve complex issues across multi-vendor wireless platforms including Cisco, Aruba, Meraki, and Ruckus access points and wireless LAN controllers (WLCs).
- Maintain and administer Fortinet firewalls, including firewall policy creation, rule optimisation, advanced traffic analysis, and configuration of IPsec/SSL VPNs.
- Deliver planned and emergency network changes while adhering to change management processes to minimise service disruption.
- Monitor and maintain high-availability network services, ensuring stability and performance across diverse customer sites.
- Perform deep-dive diagnostics using packet captures, flow analysis, and CLI-based troubleshooting tools.
- Work closely with 3rd-line support and vendors to escalate and resolve high-severity incidents affecting critical business services.
- Maintain accurate documentation, network diagrams, and configuration records for operational consistency and audit requirements.
- Identify recurring network issues and contribute to long-term remediation, service improvements, and infrastructure optimisation.
2nd Line NOC Engineer
Convergence Group
Solihull
03.2023 - 02.2024
- Escalation point for core network, MPLS, advanced routing & Firewall faults
- Management of all Level 1 & 2 wireless tickets
- Scope and implementation of core network and firewall changes, i.e new VPNv4 peerings, new VPNs & firewall policies
1st Line NOC Engineer (Shift Lead)
Convergence Group
Solihull
08.2020 - 03.2023
- Valued member of engineering team
- Strong experience of fault diagnosis and troubleshooting
- Accomplished in scope and implementation of changes to with an understanding of risk to live customer networks
- Escalation point and technical lead for 1st line incidents, working closely alongside senior engineers when required
- Dedicated to learning and developing new skills inside and outside of work
Education
Bachelor of Arts - Arts & Media
Surrey Institute of Art
FarnhamSkills
- Customer communication
- Troubleshooting network issues
- Cisco, Extreme, Fortigate, Meraki, Aruba, Ruckus,Mikrotik
- BGP, OSPF, EIGRP, MPLS
- Route redistribution
- VLAN, VRF-LITE, VPNV4-VRF
- DHCP
- ACLs
- NAT/PAT
- Switch/Router/Firewall Software upgrades
- Wireless troubleshooting
- Firewalls
- Wireless LAN controllers
Accomplishments
- Fortinet NSE4
- Cisco Certified Network Professional (CCNP) ENCOR & ENARSI
- Extremewireless Cloud Installation and Configuration
Timeline
2nd Line NOC Engineer
Glide
02.2024 - Current
2nd Line NOC Engineer
Convergence Group
03.2023 - 02.2024
1st Line NOC Engineer (Shift Lead)
Convergence Group
08.2020 - 03.2023
Bachelor of Arts - Arts & Media
Surrey Institute of Art