Senior Network Engineer Job Description and Role Overview

The Senior Network Engineer is responsible for designing, implementing and maintaining resilient network infrastructure. Experienced network professionals who lead technical delivery, mentor junior staff and ensure secure, high-performance connectivity should apply.

Senior Network Engineer Job Profile

The Senior Network Engineer will provide technical leadership for the planning, deployment and optimisation of enterprise network environments. The role focuses on ensuring availability, scalability and security of LAN, WAN and remote connectivity while aligning network capabilities with business requirements.

This position requires strong analytical and problem solving skills, proven experience in complex network environments and the ability to collaborate with cross-functional teams to deliver projects and operational improvements.

Senior Network Engineer Job Description

The Senior Network Engineer will manage the end to end lifecycle of network services, from requirements gathering and design through to implementation, testing and operational support. The role includes capacity planning, performance tuning, fault diagnosis and incident resolution to maintain agreed service levels.

Working within a technical team, the postholder will lead network projects, contribute to architecture decisions, produce and maintain network documentation, and ensure compliance with security and governance standards. The role involves stakeholder engagement with IT, security and infrastructure teams and occasional supplier coordination.

Expectations include providing technical guidance and mentoring to less experienced engineers, driving automation and process improvements, and participating in on call rotation to support critical infrastructure as required.

Senior Network Engineer: Duties and Responsibilities

• Design, deploy and maintain enterprise network infrastructure for LAN, WAN and remote access.
• Lead network architecture reviews and translate business requirements into technical solutions.
• Perform capacity planning and performance optimisation to meet service level objectives.
• Troubleshoot complex network incidents and provide root cause analysis and remediation plans.
• Implement and enforce network security controls and assist with vulnerability assessments.
• Manage configuration, change and release activities for network devices and services.
• Develop and maintain accurate network topology, configuration and operational documentation.
• Drive automation and orchestration initiatives to improve consistency and reduce manual effort.
• Coordinate with suppliers and third parties for procurement, escalation and technical support.
• Lead network upgrade and migration projects, including testing and cutover planning.
• Provide on call support for critical network incidents and ensure timely restoration of services.
• Mentor and coach junior network engineers and provide technical leadership within the team.
• Contribute to disaster recovery and business continuity planning for network services.
• Ensure compliance with organisational policies, regulatory requirements and best practice standards.

Senior Network Engineer: Requirements and Qualifications

• Bachelor degree in Computer Science, Information Technology, Engineering or a related discipline, or equivalent practical experience.
• Minimum of five years proven experience in enterprise network engineering or similar roles.
• Strong understanding of TCP IP, routing and switching concepts, VLANs and subnetting.
• Experience with WAN technologies, VPNs, remote access and network resilience strategies.
• Practical knowledge of network security principles and experience implementing access controls.
• Demonstrable experience in network design, implementation and troubleshooting at scale.
• Familiarity with network monitoring, logging and performance analysis methodologies.
• Experience producing technical documentation, run books and network diagrams.
• Proven ability to lead projects, manage stakeholders and coordinate technical resources.
• Strong analytical, problem solving and incident management capabilities.
• Effective communication skills with the ability to explain technical concepts to non technical stakeholders.
• Commitment to continuous professional development and relevant professional certifications or equivalent experience.
• Ability to work flexibly, participate in on call rotations and respond to critical incidents when required.