About this role
Salary: £118,300 - 118,300 per year
Requirements
- Extensive experience in network security engineering and hands-on management of enterprise firewall technologies.
- Strong knowledge of Palo Alto, Check Point, Cisco Firepower, Fortinet FortiGate and/or Juniper SRX.
- Proven experience designing and implementing network segmentation and Zero Trust security solutions.
- Strong understanding of Microsoft Azure and AWS networking and security services, hybrid cloud connectivity, secure network architecture and cloud-native security controls.
- Solid knowledge of VPN technologies, IDS/IPS, Web Application Firewalls, DDoS protection and secure remote access.
- Strong networking fundamentals, including BGP, OSPF, MPLS, VLANs and high-availability architectures.
- Experience with security monitoring tools such as Microsoft Sentinel, Splunk, QRadar, Cortex XDR, CrowdStrike or Darktrace.
- Knowledge of vulnerability management, security risk assessments and compliance frameworks.
- Familiarity with automation and infrastructure-as-code tools such as PowerShell, Python, Terraform and Ansible.
- Excellent troubleshooting, analytical, communication and stakeholder management skills.
- Hands-on experience with Azure Firewall, Network Security Groups, Application Gateway, Virtual WAN, ExpressRoute and Private Endpoints is desirable.
- Experience with AWS Security Groups, Network ACLs, Transit Gateway, AWS Network Firewall, WAF, Shield, Direct Connect and Amazon VPC is desirable.
- Knowledge of Zero Trust Network Access (ZTNA), Software Defined Perimeter (SDP) and Secure Access Service Edge (SASE) architectures is desirable.
- Experience in regulated enterprise environments, particularly financial services, banking, insurance, healthcare, telecommunications, utilities or the public sector, is desirable.
- Relevant industry certifications, such as PCNSE, Check Point CCSE/CCSM, Cisco CCNP/CCIE Security, Fortinet certifications, CISSP, CISM, Microsoft AZ-500 or AWS Certified Security - Specialty, are desirable.
- Familiarity with ISO 27001, NIST Cybersecurity Framework, CIS Controls, GDPR and Cyber Essentials Plus is desirable.
Responsibilities
- Design, implement and maintain enterprise network security solutions across global, on-premises, cloud and hybrid environments.
- Lead network security transformation, modernisation and Zero Trust initiatives.
- Design, deploy and manage enterprise firewall platforms, including policy configuration, NAT rules, access controls and rule optimisation.
- Develop and implement network segmentation and micro-segmentation strategies to minimise security risks and lateral movement.
- Design and secure cloud network architectures across Microsoft Azure and AWS.
- Implement and manage secure connectivity between cloud platforms and on-premises infrastructure.
- Configure and maintain VPNs, IPSec connectivity, SSL VPNs and secure remote access solutions.
- Monitor network security events, investigate incidents and collaborate with SOC teams to improve threat detection and response.
- Conduct vulnerability assessments, security architecture reviews and remediation activities.
- Ensure network security controls align with relevant policies, industry standards and regulatory requirements.
- Produce technical architecture designs, security assessments, operational documentation and remediation plans.
- Work with internal stakeholders, vendors and project teams to deliver secure, resilient network solutions.
Technologies
- AWS
- Ansible
- Azure
- Cloud
- Cisco
- Firewall
- FortiGate
- MPLS
- NAT
- Network
- PowerShell
- Python
- Security
- Splunk
- Terraform
- VPN
- WAF
- Web
More
We are seeking a Senior Network Security Engineer to join our high-performing team and help strengthen security architecture, advance network security transformation and implement Zero Trust principles across complex enterprise infrastructure. This four-month contract opportunity is based in Coventry, with three days per week on-site, and pays £455 per day inside IR35. Were looking for a technically strong, proactive professional who can operate confidently in complex enterprise environments, influence technical decisions, engage effectively with stakeholders and deliver practical security improvements while maintaining operational resilience.
last updated 45 week of 2026