Urgent opening for Network L3 B30 2HP, UK

Job Description: Network L3 Engineer - Enterprise LAN and Wireless

Position Summary:
We are seeking a highly skilled Network L3 Engineer to oversee and manage the enterprise LAN (Local Area Network) and Wireless network infrastructure. The ideal candidate will have expertise in designing, implementing, troubleshooting, and optimizing complex network systems in a large-scale enterprise environment. This role involves acting as a technical lead for critical issues and ensuring high availability, security, and performance of network services.

Key Responsibilities:

1. Network Design and Implementation

• Design and deploy robust LAN and Wireless Network solutions tailored to enterprise needs.
• Create detailed documentation, including network diagrams, configurations, and policies.
• Collaborate with architecture teams to integrate new technologies and ensure scalability.

2. Troubleshooting and Problem Resolution

• Act as the Level 3 escalation point for complex network incidents and problems.
• Perform root cause analysis and resolve recurring issues affecting the network's performance or reliability.
• Utilize advanced diagnostic tools to monitor and troubleshoot network infrastructure.

3. Operations and Optimization

• Manage, configure, and optimize LAN Switches, Wireless controllers, and Access Points.
• Conduct regular performance analysis and implement improvements to meet SLAs and KPIs.
• Stay updated on best practices for network optimization and apply them proactively.

4. Security and Compliance

• Ensure enterprise network security policies are enforced on LAN and wireless devices.
• Collaborate with the Vulnerability team to mitigate them from the network devices.
• Perform audits and ensure the network complies with organizational and industry standards.

5. Collaboration and Support

• Partner with cross-functional teams to support business-critical projects.
• Provide mentorship and technical guidance to L1 and L2 engineers.
• Lead technical discussions and communicate effectively with stakeholders at all levels.

6. Technology Upgrades and Lifecycle Management

• Plan and execute hardware and software upgrades for LAN and wireless systems.
• Manage vendor relationships and work closely with OEMs for hardware replacements, bug fixes, and enhancements.

Technical Skills and Qualifications:

Mandatory Skills:

• Strong knowledge of Enterprise LAN technologies, including VLANs, STP, RSTP, EtherChannel, and QoS.
• Expertise in configuring and managing Wireless networks (eg, Cisco, Juniper).
• Hands-on experience with network troubleshooting tools (eg, Wireshark, SolarWinds, Cisco DNA Center, Juniper MIST).
• Proficiency in routing protocols like OSPF, EIGRP, and BGP.
• Familiarity with 802.1X, RADIUS, and NAC solutions for wireless security.

Preferred Skills:

• Knowledge of cloud-based network management platforms.
• Experience with SD-WAN and network automation tools (eg, Python, Ansible).
• Certifications: CCNP (Cisco Certified Network Professional), CWNP (Certified Wireless Network Professional), or equivalent.
• Experience with DDI Platform like Infoblox
• Knowledge of Zscaler Internet and Private Access

Education:

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Equivalent work experience will also be considered.

Soft Skills:

• Strong analytical and problem-solving skills.
• Excellent communication and interpersonal skills for effective collaboration.
• Ability to prioritize and manage multiple tasks in a fast-paced environment.
• Detail-oriented with a commitment to delivering high-quality solutions.