Senior Network Engineer

Our client is seeking a seasoned networking professional to take a leading role in the design, delivery, and ongoing enhancement of complex network solutions across a varied enterprise customer base. This is a technically demanding position suited to an individual who thrives in high-stakes environments, excels in deep-dive analysis, and is committed to raising the bar for technical excellence, service quality, and team capability.

Acting as a trusted technical authority, you will guide solution design, lead implementation activities, and provide high-level operational support. You will also play a pivotal role in shaping best practices and mentoring colleagues, contributing to a culture grounded in continuous improvement and exceptional customer outcomes., * Operate as the principal network specialist across assigned customers, advising on architecture, service requirements, and long-term technical direction

• Maintain a detailed understanding of each client's environment to inform design decisions, configuration changes, and optimisation strategies
• Review solution designs and provide expert guidance to ensure technical integrity and alignment with industry best practice
• Deliver robust implementation activities including build, configuration, testing, and documentation of complex network and security solutions
• Develop and execute structured test plans to validate solution performance and ensure adherence to change-control and audit standards
• Apply advanced troubleshooting and optimisation techniques to ensure high availability and peak performance of critical network services
• Produce clear, high-quality design and implementation documentation for internal and client use
• Contribute to the evolution of the organisation's technology offerings through ongoing testing, research, and collaboration with vendors and partners
• Implement strong security controls and compliance measures to safeguard customer environments
• Identify opportunities to streamline processes, improve operational efficiency, and enhance the overall service portfolio
• Provide senior-level customer engagement, both written and verbal, during design, delivery, and support phases
• Participate in an on-call rota supporting 24/7 service commitments
• Maintain up-to-date vendor accreditations and certifications relevant to the role
• Engage in regular knowledge sharing with peers across the engineering and operations teams

• Significant hands-on experience working in senior engineering roles within enterprise or service-provider environments
• Demonstrable capability with advanced networking technologies covering enterprise routing and switching, secure network access, wireless solutions, and data centre fabrics
• Strong working knowledge of multi-vendor networking and security products, including but not limited to enterprise LAN/WAN, firewalling, SD-WAN, identity-based networking, and modern cloud security architectures
• Practical experience in creating and reviewing technical designs, delivering projects end-to-end, and supporting large-scale enterprise environments
• Strong understanding of current industry trends, evolving technologies, and best-practice frameworks
• Ability to maintain high-quality documentation using tools such as Visio, Excel, and Word
• Excellent communication skills, with the ability to engage effectively with technical and non-technical stakeholders at all levels
• Confident working independently while contributing positively to a collaborative team culture
• Strong commercial awareness and an ability to understand the broader business impact of technical decisions

Desirable Skills

• Advanced certifications across major networking and security vendors
• Experience designing or supporting software-defined networking technologies, cloud-based security solutions, or public cloud networking components
• Scripting or automation experience with tools such as Python or Ansible
• Familiarity with carrier-grade networking environments or large-scale multisite architectures
• Experience working within an MSP or consultancy environment supporting enterprise and public-sector clients