Pongsak Jariya

Senior IT Infrastructure, Network, and Security Leader with over 16 years of experience delivering enterprise-scale data center programs, infrastructure migrations, and IT operations across HQ, Factories, and nationwide branch environments. Proven expertise in infrastructure governance, hybrid and multi-cloud platforms (AWS, Azure, GCP), and secure network and cybersecurity architecture. Strong track record in end-to-end IT project delivery, full IT Budget ownership, vendor management, and ITIL-based service operations, consistently ensuring high availability, SLA performance, and regulatory compliance.

Recognized for translating technical risk and infrastructure performance into clear business impact, enabling executive leadership to make informed, strategic decisions.

IT Manager (Contract)

Ing CK Co., Ltd. | Nov 2025 - Present

• Planned, upgraded, and delivered end-to-end IT infrastructure for Warehouse and HQ, covering network architecture (Cisco Catalyst, Aruba), systems deployment (VMware), security controls (FortiGate), and identity & device management (Google Workspace, Azure AD, Intune, Entra, SD-WAN), ensuring operational readiness and long-term scalability.
• Led enterprise IT management and governance programs to strengthen infrastructure foundations through architecture reviews, cybersecurity enhancements, and service-delivery standardization.
• Conducted enterprise-wide infrastructure and risk assessments, identifying architectural gaps, operational risks, and compliance weaknesses, and translated findings into actionable remediation plans for senior management.
• Designed and embedded IT General Controls (GITC) aligned with ISO/IEC 27001 and CIS Controls, establishing a sustainable governance model and an audit-ready control environment.
• Standardized IT security policies, processes, and documentation, delivering executive-level recommendations, improvement roadmaps, and structured handover to ensure long-term compliance and operational continuity.
• Governed nationwide branch POS operations (POS-POS, Zort), ensuring transaction stability, security compliance, and service availability through strong Infrastructure & Security Governance and risk oversight.

IT Infrastructure Manager (Contract)

• Managed day-to-day infrastructure and security operations to ensure service stability.
• Managed operational continuity and vendor SLA performance, including IT audit coordination.
• Continued ongoing infrastructure initiatives aligned with business priorities.
• Delivered a high-level roadmap outlining operational improvements and next steps.

IT Infrastructure Assistant Manager (Full-Time)

• Led enterprise-wide IT Infrastructure & Operations across HQ, factories, Indochina branches, and POS environments, ensuring stable, secure, and business-aligned service delivery through proactive monitoring and incident governance.
• Designed, implemented, and governed core infrastructure platforms across data center and campus environments, including network (Cisco Catalyst, Aruba), firewalls (Palo Alto, Cisco, Mikrotik), SD-WAN, VMware, Intune/Entra, CrowdStrike, and Zscaler.
• Enforced security and governance standards, conducting risk assessments, firewall policy reviews, and control implementation aligned with ISO/IEC 27001 and CIS Controls, partnering with auditors to close compliance gaps.
• Managed CAPEX/OPEX budgets, procurement, and vendor contracts, delivering cost-efficient, timely infrastructure initiatives and value-driven IT services.
• Led IT projects and digital transformation initiatives, driving cloud adoption, automation, scalability, and security improvements across enterprise environments.
• Governed nationwide branch and POS (BluePOS) operations, ensuring availability, transaction continuity, and security compliance across operations.
• Served as primary SPOC for IT operations, coordinating with business units, vendors, and global/regional IT teams to ensure effective execution and alignment.
• Built and mentored IT infrastructure and support teams, ensuring SLA adherence, process compliance, service quality improvement, and strong team accountability.

Assistant IT Manager (Full-Time)

• Directed enterprise-wide IT infrastructure operations and incident response across HQ, data centers, campuses, and nationwide branches, ensuring stable, secure, and reliable service delivery through strong leadership, operational discipline, and business continuity governance.
• Designed, operated, and governed enterprise network and security architecture across data center and campus environments, leveraging Cisco (Catalyst/ACI), Aruba, SD-WAN, and multi-vendor firewalls (Palo Alto, Cisco ASA, Fortinet, Check Point, WatchGuard) to improve scalability, resilience, and operational efficiency.
• Led ISO/IEC 27001–aligned audits, IT risk management, and cybersecurity control initiatives, including firewall policy reviews, vulnerability assessments, and remediation programs, strengthening governance maturity and security posture.
• Managed IT projects, CAPEX/OPEX budgets, vendor performance, and cloud initiatives (AWS, Azure, GCP), delivering cost-efficient, business-aligned outcomes and successful digital transformation.
• Oversaw daily IT operations and endpoint lifecycle management, including asset procurement, upgrades, decommissioning, and endpoint/MDM platforms (Google Workspace, Intune, Sophos, Trend Micro), ensuring system reliability and network availability.
• Supervised, coached, and developed infrastructure and IT support teams, ensuring SLA compliance, service quality improvement, effective collaboration, and secure, high-availability connectivity.

Leader IT SeniorEngineer (Full-Time)

• Led large-scale Data Center and Campus projects, including data center refresh, infrastructure migration, and capacity expansion, across headquarters, manufacturing facilities, and global sites in APAC and the United States, ensuring secure, stable, and business-ready IT services through strong governance and operational discipline.
• Designed, implemented, and governed enterprise data center and campus network & security architecture, leveraging Cisco (Catalyst, Nexus, ACI), Aruba SD-WAN, and multi-vendor firewalls (Palo Alto, Cisco ASA, Fortinet) to enhance performance, resilience, and high availability during DC build and migration activities.
• Directed IT operations, change, and incident governance throughout DC migration and infrastructure refresh programs, ensuring service continuity, minimal downtime, and alignment with business requirements.
• Managed end-to-end DC and infrastructure projects, including scope, planning, vendor coordination, and CAPEX/OPEX budgets, as well as cloud integration initiatives (AWS, GCP) to support enterprise scalability and hybrid architectures.
• Drove ISO/IEC 27001–aligned audits, IT risk assessments, and cybersecurity controls across data center environments, including firewall rule reviews, vulnerability remediation, and control validation, strengthening governance maturity and security posture during transitions.
• Oversaw lifecycle governance of data center platforms, including network, security, and endpoint systems (Cisco ISE/WLC/FMC, Carbon Black, Sophos, Ivanti), focusing on platform stability, refresh planning, and controlled change rather than day-to-day configuration.
• Mentored and developed infrastructure and DC support teams, improving project execution, SLA compliance, cross-team collaboration, and service quality while maintaining high availability and secure connectivity.
• Coordinated closely with auditors, vendors, facilities teams, and business stakeholders to ensure DC project governance, compliance, and business continuity, contributing to IT strategy and digital transformation roadmaps.

Senior IT Engineer (Full-Time)

• Led hybrid IT infrastructure operations with a strong focus on Data Center projects, including DC refresh, infrastructure migration, and capacity expansion, across on-premises and multi-cloud environments (AWS, Azure, GCP), supporting offices and factories in Bangkok, Ayutthaya, Rayong, and Chonburi, delivering 99.9% uptime and high availability.
• Designed, implemented, and governed enterprise DC & campus network/security architecture using Cisco ACI/SDN, MPLS, BGP, OSPF, Aruba SD-WAN, and multi-vendor firewalls (Palo Alto, FortiGate, Cisco ASA, Check Point) to ensure resilience, performance, and business continuity during DC build/migration activities.
• Directed DC migration programs with change and incident governance, ensuring controlled cutovers, minimal downtime, service continuity, and alignment with business requirements across data centers and campuses.
• Managed end-to-end DC and infrastructure projects, covering scope, planning, vendor coordination, and while integrating cloud platforms to support hybrid architectures and enterprise scalability.
• Drove ISO/IEC 27001–aligned audits, IT governance, and risk management across DC environments, leading risk assessments, control reviews, and remediation to strengthen control maturity and security posture throughout transitions.
• Oversaw enterprise IT operations spanning data centers, networks, cloud, and security platforms, ensuring incident/change governance, SLA compliance, and regulatory alignment.
• Supervised and mentored infrastructure teams, acting as IT consultant and SPOC, improving project execution, service quality, collaboration, and user experience while maintaining secure, reliable DC operations.

• Master of Business Administration (MBA) – Ramkhamhaeng University
• Bachelor of Science – Mahasarakham University
• Diploma in Information Technology – Khonkaen TechnicalCollege