Network Infrastructure Manager

Voice & Script International; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Voice & Script International (VSI) is seeking a Network Infrastructure Manager in London to own the global network strategy, standards, and delivery across offices, data centres and cloud environments. You will lead a hands-on network team, work with IT and Security, and drive modernisation, resilience, capacity planning and incident response to keep services secure and available.

The role requires collaboration with the Global Director of IT and Infrastructure and strong leadership plus

Qualifications

• Hands-on network infrastructure management across several sites.
• Experience with enterprise routing, switching, WAN, VPNs, DNS, DHCP, and ACLs.
• Proven ability to lead incidents, changes, and multi-stakeholder infrastructure projects.
• Strong information security, risk management, and audit awareness.

Responsibilities

• Set the global network strategy and reference designs.
• Oversee LAN/WAN, wireless, internet, remote access, DNS, DHCP, and network management.
• Manage firewalls, access control, and secure remote connectivity.
• Lead infrastructure lifecycle: deployment, upgrades, replacements and decommissioning.
• Monitor performance, capacity, and provide diagnostics and investments.
• Build resilience and support disaster recovery planning.
• Manage changes with risk assessments, documentation, and rollbacks.
• Lead network workstreams for office openings and studio changes.
• Manage suppliers, vendors, and budgets.
• Develop and mentor network team members.

Skills

LAN/WAN/WiFi

Firewalls

VPNs

Network monitoring

Incident management

Team leadership

Budget management

Tools

Palo Alto Firewalls

Fortinet Firewalls

Windows Server

Linux

AWS

PowerShell

Job description

Network Infrastructure Manager

Team: IT and Infrastructure

Key role details

• Location: London

• Contract type: FTE

• Experience: Experienced. You will have worked in hands-on network infrastructure management or senior network engineering across several sites.

The role

VSI's network supports our offices, studios, data centres, and cloud-connected environments worldwide. As our Network Infrastructure Manager, you will lead the strategy, design, security, resilience and day-to-day performance of this global network. Your work will help our teams deliver localisation services securely and reliably for some of the world's largest brands.

This is a hands-on leadership role. You will work closely with our Global Director of IT and Infrastructure to set global network standards, lead modernisation and upgrade programmes, and give a clear view of network health, capacity, risk and investment priorities. You will also lead and develop network team members and specialist partners to ensure every VSI location receives consistent support. You will work with colleagues in IT, Security, Content Security and studio operations, and with people across the wider business.

What you will do

• Set the network strategy. Own the global network roadmap, architecture principles, technical standards and reference designs. Turn business, studio, security, and growth needs into practical, easy-to-support solutions.

• Run day-to-day network services. Oversee local area network (LAN), wide area network (WAN), wireless, internet connectivity, remote access, routing, switching, Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP) and network management services. Keep them monitored, maintained and supported to agreed standards.

• Protect the network. Manage firewalls, access control, network segmentation, secure remote connectivity and administrative access. Find vulnerabilities, coordinate fixes and make sure configurations meet VSI's information security, content security and data protection obligations.

• Manage the infrastructure lifecycle. Plan and deliver the deployment, upgrade, replacement and decommissioning of core network equipment and firewalls across our locations. Keep versions supported, designs resilient, configurations standard, inventories accurate, and ensure the right vendor support is in place.

• Monitor performance and plan capacity. Set up meaningful monitoring, alerting and reporting on availability, utilisation, latency, packet loss, errors and capacity. Analyse trends, resolve performance issues and make evidence-based recommendations for improvement and investment.

• Build resilience. Design resilience that matches how critical each service is to the business. Support disaster recovery and business continuity planning by documenting dependencies, recovery procedures, and test scenarios, and by taking part in regular recovery and failover exercises.

• Manage changes and keep records current. Ensure every network change is risk-assessed, documented, tested, approved, communicated, and includes a rollback plan. Keep network diagrams, configuration standards, Internet Protocol (IP) address records, firewall documentation, procedures and support information up to date.

• Lead the response to major incidents. Provide technical leadership during high-severity network incidents. Coordinate internal teams and suppliers, keep stakeholders updated on impact and recovery, and ensure root causes are identified and corrective actions are completed.

• Lead the network side of projects. Lead the network workstream for office openings, relocations, acquisitions, studio changes, cloud connectivity and other infrastructure programmes. Define scope, dependencies, resources, risks, acceptance criteria and handover requirements.

• Manage suppliers and budgets. Manage network carriers, technology vendors and specialist partners against their contracts and service levels. Contribute to budget planning, forecasting and cost control, and look for ways to consolidate services, improve value and reduce risk.

• Track risk and support audits. Keep visibility of network risks, technical debt, exceptions and improvement actions. Provide evidence for internal, client and external audits of network infrastructure and security controls.

• Develop your team. Manage, mentor and develop network team members and technical colleagues across our locations. Set clear priorities and standards, encourage knowledge sharing, and make sure documentation and cross-training mean no service depends on one person.

• Communicate clearly. Build strong relationships with colleagues in IT, Security, Content Security, studio operations and the wider business. Explain technical issues, risks, options and recommendations to both technical and non-technical audiences.

What we are looking for

• Proven experience in hands-on network infrastructure management or senior network engineering across several sites.

• Strong knowledge of enterprise routing, switching, wireless networking, WAN connectivity, firewalls, virtual private networks (VPNs), network segmentation, access control lists (ACLs), and core services such as DNS and DHCP.

• Demonstrable experience designing, implementing and supporting Palo Alto firewalls and their security policy controls.

• Experience managing network monitoring, capacity, availability, lifecycle, configuration and operational documentation.

• Experience leading network incidents, technical changes, and infrastructure projects involving multiple stakeholders and suppliers.

• A practical understanding of information security, risk management, business continuity and audit requirements.

• Experience managing budgets, contracts, carriers and technology vendors.

• Clear written and verbal communication, sound judgement, and the confidence to influence stakeholders and challenge them constructively.

• An organised, collaborative leadership style, with the ability to set priorities, delegate effectively and develop technical staff.

It would be helpful if you have

• In-depth experience with both Palo Alto and Fortinet firewalls.

• A Palo Alto firewall certification.

• In-depth experience with Layer 2 switching and Layer 3 routing.

• Windows Server and Linux administration experience.

• Experience with storage platforms, ideally Qumulo, Nimble and Quantum Xcellis.

• Experience with Excel and Power BI.

• Strong command-line skills and scripting experience in Linux and PowerShell.

• Experience with Python.

• Knowledge of and experience with Amazon Web Services (AWS).

• A PRINCE2 project management qualification or equivalent.

Why join VSI?

At VSI, you will join a passionate, highly driven team helping entertainment travel the world. VSI is a leading localisation company. We provide foreign-language versioning services, including voice-over, dubbing, subtitling and translation, from dedicated facilities in the world's major media hubs. In this role, you will directly shape the secure, resilient connectivity our studios and colleagues rely on to deliver high-profile global content for some of the world's largest brands.

This role offers real scope and visible impact. You will lead network strategy across an international estate, guide new offices and studio changes, and build a team around you. We support people to grow their careers alongside experienced colleagues and some of the best talent in the localisation industry.