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DXC Technology

Global IT services for enterprise modernization

Senior Network Security Specialist

Security Engineering & ArchitectureConfirmed live in the last 24 hours
Full-timeBelo Horizonte, State of Minas Gerais, BrazilNo salary listedIn-person

About the Job

Requirements

  • Demonstrated experience in corporate network security and connectivity infrastructure.
  • Advanced knowledge of enterprise firewall, VPN, and secure access platform technologies.
  • Hands-on experience with Palo Alto, Fortinet, Cisco, Check Point, or equivalent technologies.
  • Knowledge of network segmentation, routing, switching, Internet Edge, and secure connectivity architectures.
  • Knowledge of cybersecurity principles, including Zero Trust, Least Privilege, Defense in Depth, and Secure Access.
  • Experience analyzing security incidents, investigating events, and implementing corrective actions.
  • Advanced knowledge of ITIL Incident Management, Problem Management, Change Management, and Configuration Management processes.
  • Experience in managed service provider environments and working with multiple vendors.
  • Ability to validate operational controls, monitoring, technical documentation, and audit evidence.
  • Bachelor's degree in Computer Science, Information Technology, or a related area.
  • Cisco CCNA Security certification.
  • Cisco CCNP Security certification.
  • Check Point certification.
  • Microsoft Azure Security Engineer certification.
  • CISSP certification.

Responsibilities

  • Operate, govern, secure, ensure the reliability of, and continuously improve global network security services.
  • Administer and support enterprise firewall, VPN, secure remote access, network segmentation, and protected connectivity solutions.
  • Ensure security services comply with business requirements, corporate standards, cybersecurity policies, and service-level objectives.
  • Lead technical analyses to address critical incidents, security events, and complex network infrastructure problems.
  • Support vulnerability management, risk remediation, and continuous improvement of security controls.
  • Conduct operational readiness reviews, security assessments, and service transitions into production.
  • Validate the operational quality of vendors and managed service providers.
  • Ensure the effectiveness of operational controls, monitoring, technical documentation, and audit and compliance evidence.
  • Participate in continuous improvement initiatives focused on service resilience, governance, availability, and security.
  • Serve as a network security technical reference for multidisciplinary teams.

Desired Qualifications

  • ITIL Foundation certification.
  • Additional certifications in network security or enterprise infrastructure.
  • Experience in global and multinational environments.
  • Experience with transformation projects and strengthening corporate security posture.
  • Knowledge of network security in multicloud environments.
  • Experience automating security controls and monitoring.
  • Knowledge of corporate security and compliance frameworks.
  • Experience with security audits, risk management, and regulatory controls.

About the Company

DXC Technology

Global IT services for enterprise modernization

DXC Technology provides IT services to large enterprises, helping them manage and modernize mission-critical systems. It offers consulting, system integration, and managed services that are typically delivered under long-term contracts. The core offering is the Enterprise Technology Stack, which modernizes IT infrastructure, optimizes data architectures, and ensures security and scalability across public, private, and hybrid cloud environments. By applying this stack, DXC helps clients run reliable and scalable IT operations while migrating workloads to the cloud and strengthening data governance. The company differentiates itself with a global reach, a large Fortune 500 client base, and a track record of long-term partnerships, coupled with commitments to sustainability and corporate responsibility. The goal is to be a trusted partner that enables enterprises to operate, secure, and evolve their IT environments efficiently and effectively.

Company size
10,001+
Company stage
IPO
Headquarters
McLean, VA
Founded
2017

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