Summary
Overview
Work History
Education
Skills
Certification
Soft Skills
Websites
References
Timeline
Generic

Erika ANA LITTAUA

Singapore

Summary

Highly competent Senior Infrastructure Engineer with 13 years of hands-on experience in Systems and Network engineering, including 4 years specializing in enterprise VPN technologies and 3 years in a leadership role. Skilled in designing, implementing, and migrating secure VPN solutions to support global remote access and hybrid work environments. Proven track record in managing complex infrastructure projects, guiding technical teams, and aligning IT initiatives with business objectives. Known for streamlining operations, maintaining high-quality standards, and building collaborative partnerships across technical and business stakeholders.

Overview

14
14
years of professional experience
1
1
Certification

Work History

Operations Lead

NCS Pte Ltd
Singapore
01.2022 - Current
  • Led a team of senior network and system engineers through the full lifecycle of infrastructure projects—from design and planning to execution—ensuring timely and successful delivery, aligned with business requirements.
  • Managed and mentored a high-performing technical team, fostering a culture of accountability, continuous learning, and collaboration to meet organizational objectives.
  • Proactively reduced operational risks by identifying system vulnerabilities and implementing effective mitigation strategies, resulting in improved system resilience.
  • Ensured compliance with industry standards and regulatory frameworks through regular quality audits (VMS, IM8, SWSA, ASA, PCSA), maintaining alignment with best practices, and governance policies.
  • Built strong cross-functional relationships with internal teams and external partners to drive collaborative problem-solving and operational efficiency across the value chain.
  • Delivered prompt and effective resolution of end-user technical issues by streamlining coordination between internal support teams, and third-party vendors.
  • Facilitated regular knowledge-sharing sessions to enhance team capability, promote best practices, and uphold system performance and security standards.
  • Minimized service disruptions by conducting comprehensive risk assessments, planning proactive maintenance activities, and executing structured contingency measures.
  • Successfully completed the full migration of the enterprise VPN infrastructure to Ivanti.
  • Completed a comprehensive tech refresh across Cisco infrastructure, including ASA firewalls and ISE, improving network reliability, and compliance.

Senior Infrastructure Engineer

Quess (formerly ComTel)
Singapore
06.2021 - 01.2022
  • Primarily maintaining and implementing changes to the shared infrastructure such as the physical and virtualized environment such as vCenter and ESXi, RSA AM, backup and recovery systems, monitoring and logging systems, Storage devices, operating systems such as Windows Servers 2012/2019 and Linux.
  • Manage and support with collaboration on network management for Cisco devices such as ASA, ISE and Firepower.
  • Focused support and management on multiple VPN infrastructure for RSA, SmartCard, GoMAX and SingPass.
  • Led the team to address vulnerabilities reported from VMS, IM8, SWSA and ASA.
  • Delivered prompt and effective resolution of backend and end-user technical issues from escalated incidents.
  • Designed and implemented an automated certificate monitoring system across all network devices and servers, leveraging scripting to proactively detect expirations and reduce security risks.

System Engineer

Tien Wah Press Pte Ltd
Singapore
01.2017 - 01.2021
  • Managed enterprise-wide system infrastructure across Singapore HQ, Malaysia warehouse, and global offices (EU/US), ensuring reliable, scalable, and secure operations.
  • Managed IT infrastructure procurement, license tracking, and vendor coordination to support operational needs.
  • Administered messaging platforms (IBM Domino & Lotus Notes 8.5) and firewalls (Sophos X115, WatchGuard M200) to ensure secure communications and access control.
  • Collaborated with cross-functional teams (network, security, vendors) to deliver end-to-end system solutions and optimize performance.
  • Implemented backup strategies, supporting high availability and disaster recovery readiness.
  • Installed, configured, and maintained servers, operating systems, and enterprise applications to meet business requirements.
  • Provided daily end-user support and technical troubleshooting while documenting procedures for efficiency and consistency.
  • Led global MPLS to SD-WAN migration using Cato SASE Cloud, significantly enhancing connectivity, reliability, and performance across international offices.
  • Executed full physical IT infrastructure migration and deployment for new office setups in the UK and New York, ensuring seamless transition with minimal business disruption.
  • Migrated legacy on-premises FTP infrastructure to a cloud-based solution (Box), improving data accessibility, collaboration, and security.
  • Facilitated organization-wide cloud adoption initiatives, ensuring smooth transitions from legacy systems to scalable, modern platforms.
  • Successfully migrated multiple on-premises firewalls to a cloud-based firewall environment, improving security posture and centralizing policy management.

System Administrator

Semiconductor & Electronics Industries in the Philippines Inc.
Muntinlupa
01.2014 - 01.2016
  • Provided expert server support and remote troubleshooting, ensuring uninterrupted operations across distributed environments.
  • Delivered technical training and user education, empowering staff to effectively utilize IT systems and tools.
  • Created comprehensive instructional documentation and user guides, improving technical clarity and reducing support requests.
  • Executed scheduled service tasks—including installations, system testing, and repairs—to maintain peak system performance.
  • Led installation, upgrade, and deployment projects, delivering on time and within scope to support infrastructure objectives.
  • Monitored and maintained all installed systems to ensure high availability and optimal performance.
  • Diagnosed and resolved LAN, WAN, and voice network issues, minimizing operational disruptions and improving service reliability.

Technical Support Engineer

Genpact LLC
Muntinlupa
01.2012 - 01.2014
  • Provided Tier 3 technical support to bank executives and staff, ensuring timely resolution of complex issues across applications, systems, and infrastructure.
  • Troubleshot and resolved problems related to Remote Access, Backup, File Sharing/Synchronization, and critical banking systems, ensuring operational continuity.
  • Supported a diverse technical environment including servers, peripherals, and security systems, diagnosing root causes and implementing lasting solutions.
  • Delivered new hire training programs for Technical Support, User Services, and Technical Account Managers, improving onboarding efficiency and support quality.
  • Collaborated with cross-functional teams to uphold service SLAs and enhance customer experience across distributed banking environments.

Education

Bachelor of Science - Information Technology

AMA Computer College
Las Pinas City
01.2013

Skills

Operating Systems: Linux (Ubuntu, CentOS, Red Hat), Windows Server (2012, 2016, 2019), VMware/Hyper-V, Unix/Solaris
Networking:TCP/IP, DNS, DHCP, VPNs, Routing & Switching, Firewalls (Sophos, WatchGuard, Cisco ASA), Load Balancers (F5), VLANs, Subnetting, NAT, Cisco ISE, PulseOne, ClearPass
Virtualization & Computing: Hyper-V, VMware vSphere/ESXi, VMware vCenter, Cisco UCS
Scripting:Bash scripting, PowerShell
Email & Messaging: IBM Domino, IBM Lotus Notes, IBM Sametime Server, Microsoft O365
Backup & Recovery: Acronis, NetBackup, Quantum DXi
Service Management: ServiceNow
Security & Compliance: Firewalls (Cisco ASA), VPNs (RSA, GoMAX, SmartCard, Ivanti, SingPass), Security patching & hardening, SSL/TLS configuration, Symantec, Trend Micro
Storage Technologies: Brocade SAN/NAS, iSCSI, Fibre Channel, RAID Configuration, Hitachi VSP
Databases:SQL (MySQL, PostgreSQL, MS SQL), Database performance tuning
Monitoring & Logging: CA UIM, ArcSight Logger

Certification

  • Microsoft Certified: Azure Fundamentals, Microsoft, Credential ID: 6D7FB9C6257C8D77, Certification number: 0A4C48-5E23D2
  • ITIL 4 Foundation Certificate in IT Service Management, PeopleCert, GR671647125EL
  • RSA ID Plus Certified Associate, RSA

Soft Skills

Technical Leadership, IT Project Management, Process Improvement, Incident & Change Management (ITIL), Access Control & Governance, Stakeholder Communication, Documentation & Knowledge Management, Collaboration & Conflict Resolution, Team Mentorship.

Websites

References

References available upon request.

Timeline

Operations Lead

NCS Pte Ltd
01.2022 - Current

Senior Infrastructure Engineer

Quess (formerly ComTel)
06.2021 - 01.2022

System Engineer

Tien Wah Press Pte Ltd
01.2017 - 01.2021

System Administrator

Semiconductor & Electronics Industries in the Philippines Inc.
01.2014 - 01.2016

Technical Support Engineer

Genpact LLC
01.2012 - 01.2014

Bachelor of Science - Information Technology

AMA Computer College

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Erika ANA LITTAUA