Network Security Lead

The Network & Network Security Lead will play a major role in ensuring the integrity, performance, and security of the organization’s networking environment. This position requires an expert-level understanding of complex network and security architectures, hands-on troubleshooting abilities for high-impact issues, and the capability to lead cross-functional teams in delivering secure and resilient infrastructure, particularly in a regulated financial environment.

Key Responsibilities & Duties:

• Architecture & Design Leadership: Lead the design and evolution of enterprise network and security architecture aligned with business and compliance requirements. Ensure integration of network security principles in all architectural decisions.
• Advanced Troubleshooting & Problem Resolution: Own and resolve high-severity incidents covering Layer 1–7 issues, including networking, firewalls, routing, DNS, proxies, and cloud networking. Lead root cause analysis and implement long-term preventive measures.
• Multiskilling & Cross-Functional Expertise: Provide mentorship in routing, switching, firewalls (NGFW), load balancers, VPNs, SD-WAN, ACI, SD-Access, and network access control (NAC). Encourage skill development across multiple technology domains within the team.
• Security Posture & Threat Management: Implement and maintain network segmentation, access control, and zero-trust strategies; collaborate with cross-departmental teams on incident response and threat mitigation.
• Operations Oversight & Optimization: Oversee the performance, availability, and efficiency of network and security services; develop and enforce network operations procedures compliant with industry and regulatory standards.
• Project Leadership: Lead critical infrastructure projects, including migrations, upgrades, and partner connectivity; coordinate cross-departmentally for secure rollout of new services and systems.
• Vendor & Contract Management: Evaluate, select, and manage vendors and service providers; ensure SLA compliance and conduct regular performance reviews.
• Compliance & Audit Readiness: Maintain documentation and policies meeting the requirements of financial sector audits and compliance checks (e.g., PCI-DSS, ISO 27001).
• Monitoring & Incident Detection: Experience with proactive monitoring for performance and threats using tools like SIEM, NMS, and flow analysis.
• Team Development: Provide coaching and conduct regular performance reviews; build development plans for team members and foster a culture of accountability and continuous learning.
• Documentation: Strong experience with documentation tools (Microsoft Office 365, Visio, Lucid Chart) to ensure compliance, audit, and organizational standards.

Skills & Qualifications:

• Typically, 7+ years of relevant work experience with a minimum of 3 years in a similar role.
• Deep hands-on expertise in enterprise networking, SDN solutions, network security, and firewall administration (Cisco, Aruba, Fortinet, Palo Alto, etc.).
• Full-stack network knowledge (routing, switching, DNS, VPN, proxies, load balancers, SD-WAN, NAC, Wi-Fi, ACI, SD-Access).
• Strong experience in designing and managing secure, scalable, and high-performance networks.
• Proficient in troubleshooting complex multi-vendor, multi-layer issues under pressure.
• Understanding of secure cloud networking (Azure/AWS) and hybrid environments.
• Familiar with compliance frameworks such as Cybersecurity Framework, NCA, ISO 27001, and NIST.

Education & Certifications:

• Bachelor’s or Master’s Degree in Computer Science, Network Engineering, or a related field.
• Preferred certifications: Cisco CCIE (DC, Enterprise, Security), CISSP / CISM, Cloud certifications (AWS/Azure Network Specialty).

Work Conditions: Full-time, on-site visits to data centers and site offices, availability for critical incidents and changes outside of normal working hours, hybrid collaboration with global teams.

At DXC Technology, the work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. An inclusive environment is fostered where everyone can thrive.