Network and Infrastructure Engineer

Experis UK; Greater London; Presencial; GBP 60.000 - 80.000; Jornada completa

Descripción de la vacante

Experis UK is seeking a Network & Infrastructure Engineer to support a complex hybrid IT environment spanning on‑premises and Microsoft Azure cloud services. You will ensure stability, security and performance of enterprise networking and infrastructure across multiple locations.

The role involves third‑line support across network, server, virtualization and cloud technologies, with a focus on resilience, security and operational efficiency in a hybrid cloud transformation.

Formación

• Proven experience in enterprise networking across on-prem and cloud.
• Experience with Microsoft Azure networking services (VNets, VPNs, firewalls, hybrid connectivity).
• Certifications CCNA/CCNP/Network+ and Azure-focused qualifications are highly desirable.

Responsabilidades

• Manage and maintain enterprise networking environments across LAN/WAN and data centre.
• Install, configure, upgrade and support network and infrastructure technologies.
• Provide third-line support for complex network and infrastructure issues.
• Design, implement and manage Azure networking solutions for hybrid cloud.
• Collaborate with cloud engineering teams on hybrid cloud initiatives.
• Monitor and improve connectivity, security and performance across environments.
• Support disaster recovery, backups, and incident response activities.

Conocimientos

Networking concepts

Educación

CCNA

CCNP

CompTIA Network+

AZ-104

Azure Solutions Architect

Herramientas

Windows Server

Active Directory

Microsoft Exchange

VMware

Hyper-V

Azure Networking

VPN technologies

Descripción del empleo

Our client is seeking a highly skilled Network & Infrastructure Engineer to support and evolve a complex hybrid IT environment spanning both on-premises infrastructure and Microsoft Azure cloud services. This role is responsible for ensuring the stability, security, and performance of enterprise networking and infrastructure systems across multiple locations and cloud platforms.

The successful candidate will provide advanced third-line support across network, server, virtualisation, and cloud technologies, while contributing to strategic projects focused on improving resilience, security, and operational efficiency. Working closely with cloud engineering teams, the role will play a key part in the organisation's ongoing hybrid cloud transformation.

Key Responsibilities

Network & Infrastructure Management

• Manage and maintain enterprise networking environments, including LAN, WAN, wireless, data centre, and cloud networking.
• Install, configure, upgrade, and support network and infrastructure technologies to ensure reliable and secure connectivity.
• Maintain both on-premises and cloud-based network services.

Security & Cyber Defence

• Protect infrastructure against cyber threats, unauthorised access, and vulnerabilities.
• Configure and maintain firewalls, access controls, and network security policies.
• Monitor emerging security risks and implement mitigation measures where required.

Infrastructure Support & Availability

• Ensure high availability of critical infrastructure services through proactive monitoring and maintenance.
• Provide third-line technical support for complex infrastructure and network-related incidents.
• Conduct root cause analysis and drive corrective actions to prevent recurring issues.
• Escalate significant service outages appropriately and contribute to incident response activities.
• Work closely with cloud engineering teams to support the integration of on-premises and cloud services.
• Assist in designing, implementing, and managing Azure networking solutions.
• Troubleshoot and resolve connectivity and performance issues across hybrid environments.
• Support cloud migration and transformation initiatives.
• Collaborate with technology teams to deliver infrastructure services aligned with business objectives.
• Identify opportunities for process automation, optimisation, and service enhancement.
• Contribute to the ongoing development of infrastructure standards and best practices.

Project Delivery

• Lead or support infrastructure projects, including migrations, upgrades, platform refreshes, and new technology deployments.
• Produce implementation plans, technical documentation, and deployment strategies.
• Deliver projects efficiently while minimising business disruption.

Monitoring & Operational Standards

• Monitor infrastructure, network services, and cloud platforms to ensure performance and stability.
• Maintain standardised configurations and operational processes across environments.
• Support capacity planning and performance optimisation initiatives.

Business Continuity & Disaster Recovery

• Support disaster recovery planning, testing, and execution.
• Validate backup and recovery processes and ensure recovery objectives can be achieved.
• Maintain and improve business continuity procedures.

Documentation & Knowledge Sharing

• Create and maintain accurate technical documentation, procedures, and network diagrams.
• Record system changes, lessons learned, and operational best practices.
• Support knowledge transfer across the wider technology team.

Professional Development

• Keep current with developments in networking, cloud technologies, virtualisation, and cybersecurity.
• Pursue relevant training and industry certifications.
• Share knowledge and expertise with colleagues.

Governance & Compliance

• Ensure adherence to organisational policies, security standards, change management processes, and regulatory requirements.
• Support audit activities and remediate identified risks or control weaknesses.
• Promote best practice across all infrastructure and network operations.

Required Knowledge & Experience

• Strong understanding of enterprise networking concepts across both on-premises and cloud environments.
• Experience with Microsoft Azure networking services, including Virtual Networks (VNets), VPN technologies, firewalls, routing, and hybrid connectivity.

Infrastructure Platforms

Broad experience supporting enterprise infrastructure technologies, including:

• Windows Server
• Active Directory
• Microsoft Exchange
• VMware and/or Hyper‑V
• Storage technologies
• Basic SQL Server administration

IT Service Management

• Familiarity with ITIL principles and operational processes, including incident, problem, and change management.

Security & Resilience

• Strong understanding of infrastructure security, threat mitigation, disaster recovery, and business continuity practices.

Qualifications & Skills

• Degree in Computer Science, Information Technology, or a related discipline, or equivalent commercial experience.
• Proven experience within infrastructure engineering, network engineering, or a similar enterprise IT role.
• Demonstrable experience supporting both on-premises and cloud-based infrastructure environments.
• Relevant networking certifications such as CCNA, CCNP, or CompTIA Network+ would be advantageous.
• Microsoft certifications, particularly Azure‑focused qualifications (e.g., AZ‑104, Azure Solutions Architect, or equivalent), are highly desirable.
• Additional cloud, security, or virtualisation certifications would be beneficial.