Firewall Engineer in London

Location - The position is a Hybrid working Senior Network Engineering role with minimum 2 days site-based in one of the DXC regional delivery centres in Glasgow or Newcastle. Expectation is the successful candidate will cover project delivery on UK Secure accounts.

Clearance – SC & sole UK National

Job Summary

We are seeking a skilled Firewall Engineer to design, implement, manage, and troubleshoot firewall solutions in a large multi-vendor/multi-site environment for a DXC Customer. The ideal candidate will have in-depth knowledge of firewall technologies, network security principles, and best practices to ensure robust defence against cyber threats. The role focus will cover Firewall and Security infrastructures, with a key focus on Palo Alto, Cisco, Juniper and Tufin product portfolios. Expectation is the successful candidate will have proven work experience in a challenging, multi-vendor environment working as part of a team delivering both project engineering and support functions.

Key Responsibilities

• Design, deploy, configure, and maintain firewall infrastructure (e.g., Palo Alto, Cisco, Juniper).
• Monitor firewall performance and analyse security logs to detect and respond to security incidents.
• Implement firewall rules, policies, and access control lists (ACLs) based on organizational security requirements.
• Collaborate with network, security, and IT teams to ensure seamless integration of firewall systems.
• Conduct firewall rule reviews, audits, and compliance checks regularly.
• Troubleshoot and resolve firewall-related issues promptly to minimize downtime.
• Stay updated with the latest security threats and firewall technologies to recommend improvements.
• Document firewall configurations, changes, and procedures for audit and knowledge sharing.
• Participate in incident response and disaster recovery planning related to firewall infrastructure.

Qualifications

• Bachelor's degree or equivalent education and experience.
• Preferred: Bachelor’s degree in engineering, computer science, information systems, cybersecurity or related field.
• Proven experience as a Firewall Engineer or Network Security Engineer.
• Strong knowledge of firewall platforms such as Palo Alto, Cisco or Juniper.
• Experience with VPNs, IDS/IPS, and network protocols (TCP/IP, DNS, HTTP/S, etc.).
• Familiarity with security standards such as ISO 27001, NIST, or PCI-DSS is a plus.
• Relevant certifications such as CISSP, CCNP Security, Palo Alto PCNSE preferred.
• Excellent problem-solving skills and attention to detail.
• Strong communication and documentation skills.
• Currently possess SC clearance (Mandatory).

Other Qualifications

• Strong analytical and problem-solving skills.
• Skilled in time, priority, and task management.
• Effective communication skills for interaction with customers and team members.
• Ability to work independently and collaboratively within a team.
• Capable of managing competing priorities in complex environments.
• Professional demeanour with confidence in handling technical issues.
• Willingness to travel as requested (Infrequent).
• Availability for on-call work, including weekends or shifts as needed.

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