Marestel P.
Senior Network and Security Engineer
Open to offersNew to PlatformAbout
Marestel B. is a seasoned Network and Security Engineer with 7 years of experience in enterprise infrastructure, managed services, and telecom environments. Hailing from Lipa City, Batangas, he supports global 24/7 network operations, particularly through advanced Fortinet security platforms and Cisco infrastructure. His notable expertise includes SD-WAN, VPN solutions, and multi-vendor network technologies, with a focus on ensuring service continuity and resolving high-priority incidents. Marestel's role at Accenture sees him as a crucial escalation point for network and security operations across regions like NALA, EMEA, and ASPAC, where he implements preventive measures enhancing network stability. Awarded as a Network Team MVP, he is also a certified Cisco Certified Network Professional, Fortinet Certified Professional, and more. His past tenure at PT&T and Bold Business Inc. highlights his proficiency in VLAN management, router configurations, and troubleshooting, ensuring optimal network performance and minimal disruptions.
Experience
Network Engineer
Accenture Inc. · 2023 — PresentActed as an escalation point for critical incidents within 24/7 global network and security operations across NALA, EMEA, and ASPAC regions. Conducted root cause analysis and instituted preventive measures to enhance network stability and service continuity. Ensured high-quality client support through effective incident, problem, and change management, maintaining compliance with SLAs. Managed enterprise Fortinet platforms such as FortiManager, FortiAnalyzer, and FortiClient EMS while engaging in technology lifecycle activities, audits, and vulnerability assessments. Administered advanced FortiGate configurations, firewall connectivity requests, and maintained site-to-site IPsec VPN tunnels and SSLVPN solutions for secure access. Utilized Zscaler as a cloud proxy for secure web access enforcement and oversaw the management of Cisco infrastructure, optimizing switching operations. Monitored network anomalies proactively using PRTG Monitoring.Network Operations Engineer
PT&T · 2019 — 2020Monitored and managed IP network systems for PT&T, providing real-time insights into network health and conditions. Configured and maintained network devices, including routers and switches, for both core and last-mile infrastructure. Conducted firmware upgrades to ensure devices operated on stable software versions, minimizing service interruptions. Supported outage investigations, collaborating with various stakeholders to diagnose and resolve issues effectively.Network Operations Engineer
Bold Business Inc.Oversaw network health for Bold Business's IP networks, responding to hardware and software alerts to sustain service continuity. Managed VLAN assignments, IP allocations, and address distribution to optimize IP address space utilization. Configured routers, switches, OLTs, modems, and ONUs to ensure last-mile connectivity and backbone infrastructure stability. Handled L2/L3 switching configurations, including bandwidth adjustments and VLAN setups to facilitate traffic segmentation and policy enforcement. Coordinated major service outage investigations with customer care and third parties to identify and resolve network faults.
Skills & Expertise
Education
- Bachelor of Science in Electronics EngineeringBatangas State University
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