Network Engineer

Clear IT Recruitment; Chelmsford; On-site; GBP 43,000 - 73,000; Full time

Job summary

Clear IT Recruitment is seeking an experienced Network Engineer for an Essex Colchester office. The role focuses on securing and maintaining IT infrastructure across multiple sites, with on-premises and cloud systems, servers and networks.

You will work with Service Desk to resolve escalated issues and ensure high availability, compliance and performance. The salary range is stated, with room for growth and professional development in security and cloud technologies.

Qualifications

• Strong knowledge of network and security concepts with hands-on experience across routers, switches, firewalls and Wi‑Fi.
• In-depth knowledge of procurement, supplier management and troubleshooting.
• Experience in infrastructure and device security including threat protection, data storage security, server patching and vulnerability fixes.

Responsibilities

• Oversee and collaborate with Service Desk to manage incidents, problems and service requests.
• Design, implement and maintain network architecture including cloud platforms, servers, networking and connectivity for high availability.
• Implement, monitor and test security measures: firewalls, VPNs, threat protection, access controls and monitoring.
• Document IT policy, infrastructure, servers and security improvements; prepare risk assessments.
• Create and maintain documentation of technical issues.
• Support supplier management, external contracts and purchasing related to IT hardware/software.

Skills

Network security concepts

Windows Server

Intune

Azure

Microsoft 365 cloud stack

VPNs

Firewall administration

Wireless networking

IT policy documentation

Colocation/colocated sites

Tools

Hyper-V

Job description

Salary: £43,000 - 73,000 per year

Requirements

• Strong knowledge and hands-on experience with network and security concepts, administration, implementation, configuration and maintenance, including routers, switches, firewalls and Wi-Fi.
• In-depth knowledge of software and hardware procurement, supplier relationship management, implementation and troubleshooting.
• Experience in infrastructure and device security including threat protection, data storage security, server patching, firewalls, VPNs and vulnerability fixes.
• Project delivery and rollout experience.
• Proficient in Microsoft Windows Server technologies and knowledge of virtualization technologies, including Hyper-V.
• End user device management experience, e.g. Intune, Autopilot, application policies and software deployments.
• Knowledge of the Microsoft 365 cloud stack, including Entra ID, Teams, Entra Connect, Azure, Office 365, OneDrive, SharePoint, Defender, licensing, conditional access, monitoring, SSO, MFA, Exchange and email routing (DKIM, SPF, DMARC, etc.).
• Familiarity with financial systems, document management systems, monitoring tools and network troubleshooting techniques.
• Experience with document infrastructure configuration, policies and processes to ensure compliance with industry standards such as ISO 27001 and Cyber Essentials.

Responsibilities

• Oversee and work collaboratively with our Service Desk Analysts to manage business-as-usual incidents, problems and IT-related service requests, investigating, troubleshooting and identifying root causes of complex escalated issues to minimise disruption.
• Manage and support the design, implementation, development and maintenance of our network architecture, including cloud platforms, servers, networking, Wi-Fi and site/internet connectivity for high availability and business continuity.
• Implement, manage, test and monitor our security measures, including firewalls, network segmentation, policy-based routing, VPNs, antivirus, threat protection systems, premise entry, CCTV and network access controls to meet compliance requirements.
• Regularly assess, enhance and improve our IT policy documentation, network infrastructure, servers, systems and security efficiency through proactive maintenance, reviews, updates, vulnerability fixes and risk management meetings.
• Create and maintain detailed documentation of technical issues.
• Support our wider IT team with supplier management, supplier compliance, hardware specifications, maintenance of external contracts and purchasing software, hardware and infrastructure.

Technologies

• Azure
• Cloud
• Hardware
• Hyper-V
• Support
• Microsoft 365
• Network
• Office 365
• Security
• SharePoint
• Windows

More

We are seeking an experienced Network Engineer to join our Colchester office in Essex. This is a permanent role with a salary of up to 45,000. You will help ensure the security, reliability, compliance and performance of our IT infrastructure across multiple offices, supporting on-premises and cloud systems, servers and network architecture while managing escalated network, security, server and hardware/software queries.

last updated 36 week of 2026