Network & Security Administrator/Engineer

• Work as a Senior Subject Matter Expert in Network and Security Administration/Engineering for datacenter and cloud environments.
• Support operations, project delivery, and architecture requirements.
• Design, build, implement, maintain, and troubleshoot enterprise network and security solutions.
• Collaborate with clients, architects, operations teams, and vendors to deliver innovative technical solutions.
• Provide Level 3/Level 4 support for complex network and security issues.
• Ensure network availability, performance, security, and compliance with industry best practices., * Manage front-end client interactions and understand technical and business requirements.
• Design network solutions and develop network architecture plans.
• Build and implement network and security architectures.
• Respond to client requirements and propose innovative technical solutions.
• Support network operations, project delivery, and architecture initiatives.
• Resolve major network and security incidents.
• Provide advanced troubleshooting and root cause analysis for complex technical problems.
• Collaborate with support teams, clients, architects, and vendors.
• Work effectively as a team player in a fast-paced, dynamic environment.
• Coach and mentor team members.
• Develop and maintain technical documentation, network diagrams, and operational procedures.
• Ensure network stability, availability, performance, and security.
• Support enterprise network environments involving TCP/IP, Cisco routers and switches, firewalls, and load balancers.
• Apply a strong understanding of telecommunications concepts and network connectivity.
• Stay updated on emerging technologies, cybersecurity practices, and network architecture trends.

Must-Have Technical Skills1. Core Networking and Datacenter Networks

• Strong fundamentals and in-depth understanding of IPv4, TCP/IP, and core networking concepts.
• Hands-on experience with datacenter and cloud networking.
• Cisco Layer 2 and Layer 3 switching, including:
• Cisco Nexus
• Cisco Catalyst
• Cisco ACI
• VLAN configuration and management.
• Static and dynamic routing protocols, including BGP and EIGRP.
• Network access controls and security policy management.
• Network architecture design, solution delivery, and network diagram development.
• Network segmentation and IP address management.
• Cisco SDN, ACI, and Leaf-Spine network design and architecture.

1. Palo Alto Network Security and Firewalls * Hands-on experience with Palo Alto Networks firewalls. * Initial firewall setup, configuration, and deployment. * Security policy, zone, and NAT configuration. * Firewall OS upgrades, hardware refreshes, and troubleshooting. * Firewall solution delivery, license renewals, and maintenance. * Site-to-site VPN tunnel configuration and troubleshooting. * Implementation and management of security and NAT policies. * Experience with Palo Alto security technologies, including: + WildFire + URL Filtering + Firewall security policies * Palo Alto GlobalProtect remote-access VPN setup and troubleshooting.

2. Web Application Firewall (WAF) and DDoS Protection * End-to-end support for cloud-based Web Application Firewalls (WAF). * WAF design, architecture, implementation, configuration, troubleshooting, and maintenance. * Experience with Imperva WAF is preferred. * Hands-on experience with DDoS prevention and protection solutions. * Experience with Imperva Incapsula is preferred.

3. Network Access Control (NAC) and Cloud Proxy * End-to-end support for endpoint Network Access Control (NAC) solutions. * NAC design, implementation, configuration, troubleshooting, and maintenance. * Policy management, OS upgrades, hardware refreshes, and license renewals. * Experience with ForeScout NAC is preferred. * Hands-on knowledge of cloud proxy solutions. * Experience with Netskope is preferred.

4. Load Balancers * Hands-on experience with F5 Local Traffic Manager (LTM) and Global Traffic Manager (GTM). * Network and DNS load balancing configuration and management. * End-to-end support, design, implementation, and troubleshooting. * OS upgrades, hardware refreshes, and license renewals. * Maintenance and optimization of load-balancing solutions.

5. Network Monitoring and Troubleshooting * Strong network problem analysis and troubleshooting skills. * Experience with the following tools: + TCPDUMP + Wireshark + Splunk + NetScout traffic analysis tools * Proficiency in using packet broker switches to capture live network traffic. * Experience with packet capture and visibility solutions such as: + Ixia + Gigamon * Advanced diagnostic techniques for identifying network performance and connectivity issues. * Level 3/Level 4 problem determination and root cause analysis. * Experience handling high-priority incidents and troubleshooting issues during live calls.

6. Datacenter Infrastructure * Experience working with datacenter cabling teams. * Understanding of datacenter racking and unracking procedures. * Knowledge of datacenter standards and infrastructure practices. * Experience with TAP usage and network traffic monitoring. * Understanding of power supply placement and optimal rack utilization.

7. ITIL and Operations Support * Expertise in applying ITIL methodologies. * Understanding of operational support best practices. * Experience with network automation and technology management. * Strong incident management, problem management, and troubleshooting capabilities. * Knowledge of current computing technologies, network security practices, and industry trends.

Good-to-Have Skills

• Hands-on experience with Cisco ACI.
• Knowledge of RSA security technologies.
• Cloud networking experience with Microsoft Azure.
• Cloud networking experience with Google Cloud Platform (GCP).
• Experience with cloud security architecture and enterprise network integration., Required Professional and Communication Skills
• Strong analytical and problem-solving skills.
• Excellent verbal and written communication skills.
• Ability to interact effectively with clients, support groups, and vendors.
• Strong organizational and multitasking abilities.
• Self-motivated, proactive, and capable of working independently.
• Ability to work collaboratively across technical teams.
• Strong documentation, knowledge-sharing, and mentoring skills.
• Ability to manage critical incidents and prioritize tasks in a fast-paced environment.