Network Security Lead

Protect the Future of Banking – Join Cynergy Bank as a Network Security Lead. If you’re a network security expert ready to take the lead in safeguarding critical infrastructure, we’re looking for you to drive the protection of our systems and data in a fast-paced, digitally focused environment. You’ll oversee the design, implementation, and optimisation of our network security landscape—from firewalls and VPNs to DLP and endpoint protection. You’ll collaborate closely with Information Security and IT Operations to ensure resilience, compliance, and innovation across our hybrid environments.

The Network Security Lead is responsible for securing and maintaining the bank’s network infrastructure and data, ensuring the integrity, confidentiality, and availability of network security services. This role focuses on overseeing, implementing, monitoring, and enhancing security measures to protect against evolving cyber threats. Reports to the Technical Services Manager and collaborates with cross-functional teams to safeguard the bank’s network while ensuring regulatory and internal security standards. Close collaboration with Information Security is required, acting as a conduit between IT Operations and Info Sec.

• Network Security Management: Oversee, configure, deploy, and maintain security measures for the bank’s network infrastructure, including firewalls, IDS/IPS, WAF, and VPNs.
• Security tools oversight: Manage tools within the network (web filtering, mail security, NAC, endpoint security, DLP, data classification) with regular policy reviews and actioned recommendations.
• Monitor network traffic and logs to identify and mitigate threats or vulnerabilities.
• Manage and optimise access controls, ensuring proper segmentation and secure connectivity across the network.
• Incident Response and Troubleshooting: Lead the response to network security incidents, including containment, root cause analysis, and remediation.
• Address vulnerabilities identified through audits, assessments, or penetration tests within agreed timeframes in collaboration with Information Security.
• Provide Level 2/3 support for network security issues, ensuring timely resolution to minimise business impact.
• Collaboration and Stakeholder Engagement: Work with the Network Lead, Firewall Lead, Technical Services Lead, Technical Services Manager and Information Security teams to align security with network architecture and operational goals.
• Engage with Engineering and IT Operations to ensure secure integration of new systems and applications.
• Partner with external vendors and service providers to maintain and enhance security tools and services.
• Governance and Compliance: Ensure network security measures comply with regulatory and industry standards (GDPR, PCI-DSS, ISO 27001).
• Maintain up-to-date documentation of network security configurations, policies, and procedures.
• Conduct regular reviews of network security systems to ensure alignment with best practices and regulatory requirements.
• Continuous Improvement and Innovation: Stay updated on emerging cybersecurity threats and technologies; recommend proactive measures and implement automation to streamline monitoring and response.
• Lead projects to upgrade legacy security tools to modern, scalable solutions.

• Essential: Bachelor’s degree in Computer Science, Information Security, or related field, or relevant experience.
• Proven experience managing security tools within an enterprise network (e.g., mail and web filtering, DLP, WAF, CASB).
• Proven experience in managing and securing enterprise network infrastructures.
• Expertise in network security tools and technologies (firewalls, IDS/IPS, access control systems).
• Strong knowledge of network protocols (TCP/IP, BGP, OSPF) and encryption technologies.
• Familiarity with security monitoring tools (Grafana, Wireshark, SolarWinds).
• Solid understanding of regulatory compliance frameworks and security standards.
• Desirable: Certifications such as CISSP, CCNP Security, CEH, or equivalent.
• Experience in the banking or financial services sector.
• Experience with Forcepoint, Varonis, Proofpoint and Palo Alto.
• Knowledge of cloud-based security measures and hybrid network environments.
• Familiarity with automation frameworks for security operations.

About Us: Cynergy Bank is the UK’s human digital bank serving the needs of scale-up or medium-sized and fast-growing SMEs; professionals; high net worth and mass affluent individuals, combining human service with great technology. We empower customers to achieve their ambitions with digitally enabled products and services across property finance, business and commercial banking, private banking, and personal savings. Our human and digital model transforms banking for customers who value a face-to-face relationship enabled by the latest technology.

Benefits: Competitive salary and company bonus, competitive holiday allowance plus bank holidays, option to purchase an additional 10 days holiday, pension contribution and life assurance, income protection scheme and season ticket loan, medical cover (after probation), electric car scheme and money coach (after probation), hybrid working pattern: 3 days in office.