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Vivovita

Senior Network Security Analyst – Network Infrastructure with Proxy

Vivovita

. Administer, configure, and enhance NGFW environments .

Posted 10/24/2026full-timeSão Paulo • BrazilSeniorWebsite

Tech Stack

Tools & technologies
DNSFirewallsTCP/IP

About the role

Key responsibilities & impact
  • Administer, configure, and enhance NGFW environments
  • Design and implement SD-WAN solutions for corporate connectivity
  • Serve as the technical focal point for critical incidents and advanced troubleshooting
  • Define and review security, segmentation, and access control policies
  • Perform risk analyses and hardening of network environments
  • Lead migration, expansion, and modernization projects for security infrastructure
  • Support internal and external audits related to network security
  • Develop automation for recurring operational activities
  • Produce technical documentation, diagrams, and operating procedures
  • Serve as a technical mentor to mid-level and junior analysts
  • Own the design, implementation, administration, optimization, and ongoing support of network security environments
  • Act as a subject-matter expert in traditional firewalls, NGFWs, and SD-WAN
  • Serve as the technical authority for projects involving the transformation, operation, governance, and evolution of corporate connectivity and security

Requirements

What you’ll need
  • Advanced experience with Fortinet FortiGate
  • Advanced experience with Huawei Firewalls
  • Advanced experience with Fortinet Secure SD-WAN
  • Strong knowledge of TCP/IP, DNS, DHCP, BGP, OSPF, MPLS, and QoS
  • Knowledge of site-to-site VPN, remote access VPN, IPS/IDS, URL filtering, and SSL inspection
  • Bachelor’s degree in Information Security, Computer Networks, Computer Science, Computer Engineering, Information Systems, or a related field
  • One of the following certifications required: Fortinet Certified Solution Specialist (FCSS) Network Security / NSE 7: Secure Networking, or Huawei HCIA
  • Analytical mindset and advanced troubleshooting skills
  • Strong prioritization skills in critical environments
  • Executive-level and technical communication skills
  • Ability to provide technical leadership without direct people-management responsibilities
  • Collaborative, results-oriented profile
  • Strong documentation skills
  • Continuous improvement and automation mindset

Benefits

Comp & perks
  • Meal voucher (Pluxee Benefits)
  • Medical and dental insurance, extendable to dependents
  • Childcare assistance
  • Life insurance
  • Private pension plan
  • Birthday month day off (one day off during your birthday month)
  • Profit-sharing program
  • Exclusive Vivo employee offer: 50% discount on the bill in your name, plus special discounts on landline, broadband, and TV services
  • Discounts on universities, courses, and extension programs
  • Partnerships with Sesc and Senai
  • Wellness programs