Response Informatics
Network Engineer
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Role: Network Engineer - L1 Support
Location: Oxford, UK
Type: Contract Inside IR35 (Onsite)
Key Responsibilities
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Network Monitoring & Support:
- Monitor and support enterprise LAN, WAN, Wireless, and SD-WAN environments.
- Perform basic configuration, troubleshooting, and maintenance of Cisco routers and switches.
- Support Layer 2 and Layer 3 technologies including:
- VLANs
- STP/RSTP
- Trunking
- EtherChannel
- OSPF
- EIGRP
- BGP (basic support)
- Carry out switch port configurations, VLAN assignments, and connectivity troubleshooting.
- Assist in network device installation, upgrades, and configuration changes.
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Wireless & SD-WAN Support:
- Support Cisco Wireless infrastructure and Cisco WLC 9800 controllers.
- Monitor and troubleshoot enterprise Wi-Fi connectivity issues.
- Provide operational support for Cisco Meraki devices:
- MX Security Appliances
- MS Switches
- MR Access Points
- Assist with SD-WAN monitoring and incident resolution.
-
Security & Access Control:
- Assist in managing Palo Alto PA-1140 and Cisco firewall environments.
- Support firewall implementation and connectivity troubleshooting.
- Monitor and support Cisco ISE and NAC solutions.
- Assist with Zscaler ZIA and ZPA incident handling and user access issues.
- Follow security policies and procedures to maintain network compliance.
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Monitoring & Incident Management:
- Monitor network infrastructure using Zabbix and other monitoring platforms.
- Perform first-level troubleshooting for network alerts and incidents.
- Handle service requests, incidents, and escalations within SLA targets.
- Participate in P2, P3, and P4 incident resolution activities.
- Escalate critical issues to L2/L3 teams with proper diagnostic information.
- Maintain incident records and update ticketing systems regularly.
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Change & Operational Support:
- Execute approved network changes under guidance from senior engineers.
- Support patching, device upgrades, and routine maintenance activities.
- Maintain network documentation, inventory records, and standard operating procedures.
- Participate in planned maintenance and weekend activities as required.
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Collaboration:
- Work closely with Service Desk, Security, Server, Cloud, and Application teams.
- Coordinate with vendors for issue resolution and hardware replacement.
- Contribute to knowledge-sharing sessions and team training initiatives.
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Technical Skills Required
-
Routing & Switching:
- VLANs
- STP, RSTP
- Trunking
- EtherChannel
- Basic OSPF, EIGRP, BGP knowledge
- Cisco Catalyst 9300 Series
-
Wireless & SD-WAN:
- Cisco WLC 9800
- Cisco Enterprise Wireless
- Cisco Meraki MX, MS, MR
- SD-WAN Fundamentals
-
Security:
- Palo Alto PA-1140 Firewall
- Cisco Firewalls
- Cisco ISE & NAC
- Zscaler ZIA/ZPA
- Basic Network Security Concepts
-
Monitoring & Troubleshooting Tools:
- Zabbix
- Wireshark
- Nmap
- Cisco Packet Tracer
-
Network Management:
- Cisco Catalyst Center (Cisco DNA Center)
- Network Monitoring and Reporting
- ITIL Processes
- Incident Management
- Change Management
- Service Request Management
Preferred Certifications
- CCNA (Preferred)
- Cisco Certified Network Associate (Wireless/Security)
- Cisco Meraki Fundamentals (Optional)
- ITIL Foundation (Optional)
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