Senior Network Engineer
RemoteBrazil
Job Summary
Own the full lifecycle of complex network and firewall incidents, from detection through resolution and post-incident review. Lead investigation of critical network issues, driving coordination across internal teams, vendors, and customer stakeholders while making end-to-end technical decisions without reliance on further escalation. Perform root cause analysis to develop long-term remediation strategies and validate network changes, designs, and remediation approaches. Configure, maintain, and troubleshoot Cisco, Palo Alto, and Fortinet equipment, conducting targeted cleanup to ensure stability and scalability. Provide technical guidance and mentorship to junior engineers while contributing to architecture documentation and operational runbooks. Maintain awareness of networking developments to recommend new solutions. Track time and project activities within the company's time tracking system. Fluent in English required for this remote role in Brazil for a US client.
Required Qualifications
- fluent in English
- 10+ years of experience within an MSP, VAR, ISP, NOC, or enterprise IT environment, with a focus on troubleshooting and maintaining existing network infrastructure
- Advanced, hands-on experience managing enterprise firewalls across multiple platforms — including Cisco (ASA/FTD/FMC), Palo Alto Networks (PAN-OS, Panorama), and Fortinet (FortiGate, FortiManager) — including policy design, rule optimization, VPN configuration, and threat prevention
- Strong knowledge of networking protocols and technologies including TCP/IP, OSPF, BGP, EIGRP, IPSec, SNMP, STP, VTP, and VLANs
- Strong knowledge of network infrastructure within virtualized environments using VMware or similar platforms, including virtual networking, VLAN configurations, virtual switches, and network segmentation
- Experience troubleshooting performance and connectivity issues across different OSI layers
- Experience with application-level network troubleshooting, including packet inspection and analysis
- Proven experience optimizing, securing, and consolidating complex legacy network environments to meet current and future business needs
- Excellent interpersonal and communication skills, with a customer-first approach to resolving network issues
Desired Qualifications
- Active CCNP certification or equivalent (Palo Alto PCNSE or Fortinet NSE 4/7 also valued)
- Experience with Cisco Unified Communications Manager (CUCM) and enterprise voice/unified communications infrastructure
- Experience with cloud networking across AWS, Azure, or Google Cloud Platform, including networking configurations, security settings, and integration with on-premises environments
- Experience with network security practices including network hardening, monitoring, and threat assessment
- Experience working in a Managed Service Provider (MSP) environment with exposure to ITIL-based service delivery models
- Experience delivering customer-facing IT network projects
- A degree or equivalent experience in computer science or a related field
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