LEAD ADMINISTRATOR L1
Job Description
Role Purpose
The purpose of this role is to resolve high-priority incidents through advanced troubleshooting, ensure SLA compliance, analyse system performance trends, and create mitigation measures by collaborating with internal and external stakeholders.
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Areas of responsibility
Triaging and resolution of tickets-Provide resolution to high priority incident (P2) tickets, performing advanced troubleshooting and root cause analysis to ensure timely closure.
SLA Monitoring-Ensure SLA compliance for assigned technology areas and ensure proactive escalation management.
Performance tuning and optimization-Analyse system performance data, coordinate findings on system behaviour, and support capacity planning initiatives to enhance overall system efficiency.
Perform system Improvements-Create mitigation measures to evaluate new tools or improvements by collaborating with technical teams.
Handling disaster recovery-Perform security assessments and recovery drills, and implement necessary controls to ensure compliance with established security standards.
Reporting and stakeholder engagement-Participate in weekly and monthly service review meetings, provide updates on performance and issues, and support stakeholder communication to ensure transparency and service alignment.
Team Management-Collaborate with team members to resolve open tickets and service requests.
Knowledge base and continuous learning Contribute to updating SOPs, knowledge articles and maintaining the knowledge repository for the purpose of future ticket resolution.
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Job Description: Senior Network & Security Engineer / Network Security Lead
We are seeking an experienced Senior Network & Security Engineer with strong expertise in enterprise network architecture, routing, switching, wireless infrastructure, firewalls, and network security. The ideal candidate will have hands-on experience managing complex Data Center (DC), Disaster Recovery (DR), LAN/WAN, security, and wireless environments, along with proven capabilities in infrastructure implementation, migration, troubleshooting, and vendor coordination.
Key Responsibilities
- Manage and support enterprise DC/DR, LAN, WAN, wireless, and network security infrastructure.
- Design, implement, configure, and troubleshoot Cisco and Juniper routers and switches.
- Administer enterprise firewalls including Palo Alto, Fortinet FortiGate, and Check Point.
- Configure and troubleshoot OSPF, EIGRP, BGP, MPLS, VRF, PBR, HSRP, VRRP, GLBP, VLAN, VTP, STP, EtherChannel and VPC.
- Manage Cisco WLC 5500/8540/9800 series and enterprise wireless access points.
- Configure and manage ACLs, NAT, Site-to-Site VPN, TACACS, 802.1X, Cisco ISE, WAF and network security policies.
- Participate in deployment and management of SOC and Privileged Access Management (PAM) solutions.
- Plan and execute network migrations, hardware refreshes, IOS upgrades, link commissioning and production changes.
- Develop HLD/LLD diagrams, implementation plans, technical documentation, hardening standards, SOPs and knowledge-transfer documents.
- Monitor infrastructure using tools such as Cisco DNA Center, Cisco Prime, SolarWinds and other NMS platforms.
- Perform network capacity planning, bandwidth assessment, hardware sizing and infrastructure optimization.
- Troubleshoot critical network/security incidents and engage OEM/TAC teams for priority resolution.
- Coordinate with vendors, OEMs, internal infrastructure teams and business stakeholders for project delivery.
- Manage incidents, service requests, changes and operational activities through ServiceNow/ITSM processes.
- Maintain network configuration backups, security standards and disaster-recovery readiness.
Required Technical Skills
- Networking: Cisco Nexus/Catalyst, Juniper, LAN/WAN, MPLS
- Routing: BGP, OSPF, EIGRP, Static Routing
- Security: Palo Alto, Fortinet, Check Point, Cisco ISE, VPN, ACL, NAT
- Wireless: Cisco WLC/AP, Ruckus, Aruba
- Monitoring: Cisco DNA Center, Prime, SolarWinds
- Documentation: HLD, LLD, hardening and implementation documentation
Preferred Certifications
- CCNA Routing & Switching
- CCNP Routing & Switching
- Fortinet NSE 1, 2 & 3
- Palo Alto Network Security
- Check Point Security Administration (CCSA)
Source: the employer's careers page. Last checked 2026-10-23. Posted 2026-10-23.
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