Mark Jacalan

Background

About Mark Jacalan

PROFESSIONAL PROFILE Network professional with over 15 years of progressive experience in network operations, security, and infrastructure design focused on delivering scalable, secure, and high-performance solutions across enterprise and service provider environments. Specialized in Cisco and Juniper technologies, with hands-on expertise in core and edge network design, multi-vendor integration, and end-to-end architecture. Skilled in service validation, technology evaluation, certification testing, and lifecycle management of network services. Recognized for leading complex technical efforts with a results-driven mindset, dedicated to providing top-tier customer service, cultivating strong relationships with stakeholders, cross-functional teams, and management to drive network excellence. TECHNICAL SKILLS SUMMARY Network Architecture & Operations Designed, tested, and certified IP core and edge infrastructure solutions Extensive experience with Cisco IOS (IOS, IOS-XE, IOS-XR), Juniper Junos, Nokia 7750 SR-series Proficient in MPLS, BGP, OSPF, QoS, IPv6, VRRP, Multicast, BFD, IPsec, and DSCP-based traffic engineering, NGCE/NGEdge networks and LTE/5G enterprise wireless solutions SD-WAN & Virtual Edge Led testing, certification, deployment, and management of Cisco Viptela and VMware VeloCloud SD-WAN solutions Operational experience with uCPE platforms: Cisco ENCS (ISRv, cEdge) and Juniper NFX250 (vSRX) Skilled in validating performance, security policies, and scalability across virtual edge architectures Automation & Tooling Basic automation using NSO Portal and Python scripting for repeatable network operations Source control and CI/CD pipeline integration using GitLab for code management and testing workflows Network Security & SIEM Implemented and supported enterprise security platforms: Juniper SRX Series, Radware, Arbor Networks, Check Point, NetScreen Security Manager Experience with SIEM tools including ArcSight (Console & Logger) for correlation and diagnostics Enforced access controls using Cisco ACS, TACACS, and frameworks Conducted vulnerability assessments with McAfee ESM and Tenable to ensure compliance with corporate security standards Software & Platforms Proficient in Microsoft Office Suite, Windows, Ubuntu/RedHat Linux, OpenStack, and Visio Well-versed with test platforms including Keysight IxNetwork/IxLoad, Breaking Point, Wireshark, GNS3, and Cisco Packet Tracer Skilled in documentation and collaboration tools: SharePoint, Confluence, Miro, Jira