Senior Network Engineer
* Hertfordshire: Hybrid x3 onsite
* Package: £75k + car allowance + package
Overview:
We are seeking a strategic and forward-thinking Network Engineer to lead the design, governance, and evolution of our clients IT and network infrastructure. Working within a dynamic engineering environment, this role will play a key part in shaping the technology roadmap ensuring that infrastructure, security, and connectivity solutions are scalable, resilient, and aligned with business goals.
You’ll act as a subject matter expert, guiding technical decisions, supporting transformation to cloud-based services, and driving best practices across the organisation’s network and infrastructure landscape.
Role and Responsibilities:
* Define and implement the strategic direction for the company’s infrastructure and network architecture, ensuring alignment with business objectives and IT governance
* Lead the design, deployment, and management of secure, resilient, and scalable infrastructure solutions across on-premises and cloud environments
* Oversee network strategy and performance, including capacity planning, segmentation, and disaster recovery design
* Develop and maintain standards, policies, and procedures for infrastructure, networking, and security operations
* Drive the adoption of modern cloud and hybrid networking technologies within the Azure ecosystem
* Collaborate with cybersecurity, operations, and project teams to ensure network and data security across all business locations
* Lead or provide technical oversight for infrastructure transformation projects, including upgrades, migrations, and integration initiatives
* Develop and review technical documentation, including architecture diagrams, standards, and Low-Level Designs (LLDs)
* Advise senior management on emerging technologies and opportunities to enhance operational efficiency and resilience
* Mentor and support IT team members to build capability and ensure consistent technical excellence
Essential Skills & Experience:
* Proven experience in a senior infrastructure or network engineering role with strategic oversight responsibilities
* Deep understanding of network architecture and design principles, including routing, switching, and segmentation
* Strong knowledge of Microsoft Azure infrastructure and networking (VNets, NSGs, ExpressRoute, hybrid connectivity)
* Experience developing and enforcing infrastructure standards and governance frameworks
* Solid understanding of firewalls, VPNs, and network security fundamentals
* Expertise in Active Directory, Entra ID, and Microsoft 365 administration
* Strong communication and stakeholder management skills — able to translate complex technical requirements into business outcomes
* Microsoft Azure Administrator (AZ-104) certification or equivalent experience
Desirable
* Experience with Fortinet / FortiGate firewalls or other enterprise-grade security platforms
* Knowledge of SD-WAN or advanced WAN technologies
* Familiarity with Power Platform (PowerApps, Logic Apps, Dataverse) and Dynamics 365 Business Central
* Experience with Windows Server, Exchange, and PowerShell automation
* Any Fortinet NSE certification (e.g., NSE 4+) or equivalent vendor certification is advantageous