Lemuel Vitangcol
Clayton,USA
Summary
Dynamic and seasoned Senior Systems and Network Engineer with proven expertise in designing, implementing, and optimizing large-scale global enterprise infrastructure. Demonstrated success in delivering high-impact migration projects across diverse environments, including Windows Server, Exchange, and legacy NetWare systems. Recognized for driving efficiency through innovative automation strategies, security hardening practices, and the development of robust, highly available systems that meet the evolving needs of organizations. Committed to leveraging extensive technical knowledge to enhance operational performance and support business objectives.
Overview
30
30
years of professional experience
1
1
Certification
Work History
Senior Operational Support Engineer-Lead
Wells Fargo
01.2018 - 01.2025
- Oversaw daily operations and performance for a team of 30 Support Analysts, fostering a high-performance culture focused on operational excellence and proactive support.
- Instituted standardized technical documentation practices that improved knowledge transfer efficiency and decreased ramp-up time for new junior staff by 25% (or other relevant number).
- Managed the governance of production changes, critically reviewing and approving all Change Records and Work Requests to maintain system stability and integrity.
- Spearheaded automation initiatives across operational workflows, resulting in measurable time savings for the team and improved service delivery consistency.
System Support Analyst 3
Wells Fargo
01.2010 - 01.2025
- Elevated system stability by providing advanced server system administration and support for a critical technology organization; resolved complex technical issues across assigned applications, systems, and databases.
- Reduced system downtime by effectively utilizing diagnostic tools to troubleshoot, maintain, and rapidly restore service and data integrity to mission-critical systems.
- Enhanced compliance and security posture by reviewing proposed changes for risk to production systems and ensuring alignment with quality, security, and regulatory requirements.
- Streamlined operational knowledge by updating and authoring technical documentation, standard operating procedures (SOPs), and contributing to related team training programs.
- Maintained service continuity through active participation in the testing, validation, and updating of the business continuation and disaster recovery plan (BCP/DRP).
- Accelerated issue resolution by effectively troubleshooting network, hardware, and software issues, and diligently maintaining detailed change and issue logs to inform future preventative measures.
System Administrator
Wachovia
01.2006 - 01.2010
- Managed and maintained high-availability production environments, conducting comprehensive server systems administration across Windows Server OS, Citrix, and VMWare platforms.
- Ensured system reliability by proactively monitoring performance and capacity, rapidly troubleshooting complex issues, and executing timely problem resolution for critical infrastructure.
- Streamlined deployment processes by performing server builds and rebuilds efficiently utilizing standardized images provided by the Server Engineering team.
- Maximized infrastructure efficiency through the execution of necessary hardware and software installations and upgrades.
- Maintained robust storage connectivity by configuring and managing SAN storage technologies (e.g., EMC/Qlogic HBA) attached to virtual and physical servers.
- Enhanced team efficiency and knowledge by creating and documenting detailed operational procedures and standards for the server environment, serving as a key technical resource for related support teams and end-users.
- Supported managerial decision-making by developing and presenting actionable operational reports using Excel, sourcing data from PICCT and SIS platforms.
Systems Engineer
Kingfisher/ManTech-GrayHawk
01.2003 - 01.2006
- Executed a critical migration project upgrading Exchange 5.5 to Exchange 2000/2003 as part of a larger domain transition to Active Directory (Windows 2000/2003).
- Designed and implemented enterprise application management and deployment using SMS 2003 and integrated Citrix Metaframe server for centralized desktop delivery.
- Improved efficiency by successfully migrating enterprise applications from legacy NT Servers to Windows 2000 Terminal Servers.
- Oversaw a critical operating system upgrade, migrating Windows SBS 4.5 to Windows SBS 2003.
Network Administrator
MEDS Publishing
01.2002 - 01.2003
- Administered and provided operational support for a diverse cross-platform environment, including Windows 2000/NT, Netware, Linux, SQL, Exchange 2000, and Lotus Notes/Domino servers.
- Enhanced organizational security posture by restructuring the firm's network security, refining antivirus configurations (Symantec Antivirus), and improving server/workstation security standards.
- Ensured data integrity and rapid recovery through the management of Veritas BackupExec and the creation of standardized system images using Ghost.
- Provided end-user and administrative support for key business applications, including Goldmine CRM.
Systems/Network Admin
TELEGLOBE/RHConsulting
01.1999 - 01.2002
- Co-administered a high-volume, multi-domain global production environment encompassing 400+ servers (Windows NT/2000, Netware) and supporting 2,000+ users worldwide.
- Maintained critical network infrastructure, managing and supporting Cisco routers and switches across the global network.
- Ensured high availability of core services, including Active Directory, Exchange, SQL, SMS, IIS, Terminal Server, Cluster Server, and Veritas Backup.
- Managed advanced networking and storage solutions: Provided expertise in VPN/RAS, SAN, NAS, and RightFax services to maintain seamless business operations.
Network Support Specialist
JANE'S INFO GROUP
01.1998 - 01.1999
- Administered and maintained core server infrastructure, including Windows NT and NetWare 3.12 servers, ensuring system reliability and operational uptime.
- Managed fundamental network services by installing, configuring, and maintaining DNS, DHCP, WINS, and IIS Servers.
- Supported and maintained network connectivity by providing administration services for Cisco routers.
- Contributed to messaging systems by assisting in the implementation and ongoing administration of the Lotus Notes/Domino messaging system.
Field Tech/Comp Tech
RAC SOLUTIONS/CONSULTING
01.1995 - 01.1998
- Provided comprehensive on-site technical support, addressing diverse service calls ranging from physical component swaps to complex Internet/Intranet configuration and setup.
- Administered and maintained a foundational server environment, including NT Servers, BackOffice Server, Novell servers, Exchange, IIS, MS-Proxy, and RAS (Remote Access Service).
- Delivered cross-platform support by installing, configuring, and administering Unix and Mac workstations, demonstrating versatility beyond Windows environments.
- Ensured maximum peripheral availability by performing maintenance and repair of hardware, software, and peripheral devices, including dedicated support for HP printers.
- Enhanced support efficiency by developing detailed documentation and procedures for standard program installation, facilitating knowledge transfer and consistent deployment practices.
Education
Computer and Electronics Technology
Lake Michigan College
01.1992
Skills
- Virtualization and directory services
- Experience with VPN and firewall management
- Automation and deployment expertise
- Effective troubleshooting skills
- Cross-platform operating systems knowledge
- Virtualization with Microsoft Azure
- Active Directory and Exchange administration
- Cisco router and switch configuration
- Backup and recovery solutions
- Scripting and automation tools
- Database management: SQL, Oracle, Hyperion
- Hardware troubleshooting expertise
- Application monitoring expertise
Certification
- Microsoft Certified Azure Administrator
- Microsoft Certified Systems Engineer & Administrator (MCSE & MCSA)
- Cisco Certified Network Associate (CCNA) Routing and Switching
- Certified Netware Administrator (CNA)
- A+ and HP Certified Service Technician (Wintel PC and LaserJet Printer)
- Novell Netware CAN/CNE Course, Strayer University, 1997
Timeline
Senior Operational Support Engineer-Lead
Wells Fargo
01.2018 - 01.2025
System Support Analyst 3
Wells Fargo
01.2010 - 01.2025
System Administrator
Wachovia
01.2006 - 01.2010
Systems Engineer
Kingfisher/ManTech-GrayHawk
01.2003 - 01.2006
Network Administrator
MEDS Publishing
01.2002 - 01.2003
Systems/Network Admin
TELEGLOBE/RHConsulting
01.1999 - 01.2002
Network Support Specialist
JANE'S INFO GROUP
01.1998 - 01.1999
Field Tech/Comp Tech
RAC SOLUTIONS/CONSULTING
01.1995 - 01.1998
Computer and Electronics Technology
Lake Michigan College