Alfredo Guardado
Woodbridge,VA
Summary
Network engineer specializing in the design, implementation, and management of robust network systems. Focus on minimizing downtime and ensuring high availability through advanced troubleshooting and proactive monitoring. Strong collaboration with IT teams to enhance system integration and performance.
Overview
1
1
Certification
33
33
years of professional experience
Work History
NETWORK Engineer
SMS
07.2024 - Current
- Designed, implemented, managed, and troubleshot complex network systems.
- Executed advanced troubleshooting and problem resolution for network issues, minimizing downtime and mitigating impact on business operations.
- Monitored network performance using specialized tools to detect and resolve issues. and health using various tools, identifying and addressing potential issues proactively.
- Oversaw daily operations of network infrastructure to ensure smooth functionality. of company's network infrastructure, ensuring optimal performance and high availability.
- Maintained comprehensive network documentation, including diagrams, configurations, and procedures for clarity and compliance.
- Collaborated closely with IT teams and vendors to enhance network integration. with other IT teams, vendors, and stakeholders to ensure seamless integration and operation of network systems.
- Offered guidance and support to junior engineers to enhance their technical skills. and mentorship to junior network engineers, helping to develop their skills and knowledge.
- With my 12 years of experience in implementing and maintaining and maintaining LAN, WAN Components.
- Adept at optimizing system performance, ensuring data security, and providing top-tier support to end users.
Network Engineer
VSO
01.2022 - 07.2024
- Collected data for Net MRI system, conducted Red Seal data collection, and facilitated data collection for Forward Network data collectors, gathering information from all NRO assets including layer 2 and layer 3 routers, switches, and firewalls.
- Knowledge and experience working with Amazon Web Services, Microsoft Azure or Google Compute Engine or equivalent cloud platform experience with application/data migration to AWS.
- Experience with Ansible, Power shell automation toolsets.
- Developed and maintained user access roles for cloud infrastructure, ensuring appropriate access control.
- Collaborated with Tier 1 cloud support techs and Cloud Services team to remediate technical issues and fulfill support requirements.
- Working with IT Security team to ensure the cloud environment aligns with IT Security compliance.
NETWORK Engineer
PAE
01.2020 - 01.2022
- Configured and maintained network equipment, including switches, routers, and wireless access points, to ensure optimal performance and reliability.
- Configured and managed routers, switches, firewalls, and other network devices to meet organizational requirements and enhance network reliability.
- Designed, implemented, and maintained LAN/WAN infrastructures to ensure seamless connectivity and optimal performance.
- Managed and administered local area networks (LANs) to support daily operations and facilitate communication across departments.
- Monitored network traffic and performance metrics, identifying and addressing potential bottlenecks and security threats.
- Collaborated with vendors and service providers to procure network hardware, software, and services, negotiating contracts to achieve cost-effective solutions.
- Conducted regular backups and implemented disaster recovery procedures to safeguard critical data and ensure business continuity.
- Provided technical support and training to end-users, troubleshooting network issues and assisting with software and hardware installations.
- Collaborated with cross-functional teams to plan and execute network expansion projects, including hardware upgrades and capacity planning, ensuring timely resolution of issues.
Network Engineer
Allied Associates International
01.2018 - 01.2020
- Developed and implemented VMware solutions to deploy virtual desktops for Wise dell thin clients, improving user accessibility.
- Design, implement and maintain VMware vSphere infrastructure.
- Monitored, troubleshot, and conducted capacity planning for vSphere environment, ensuring optimal performance and resource allocation.
- Assisted in maintaining Cisco UCS B-Series and C-Series servers, supporting overall system functionality.
- Assisted technical support staff and end-users in managing basic and expedited support for network-related issues, enhancing issue resolution efficiency.
- Work independently while providing system admin support to multiple software development teams.
- Work with Team members to develop to brainstorm and implement Ideas to support other groups within the agency.
- Proactively identify and perform hardware and software upgrades.
System Admin
Bruin Waves Solutions
01.2012 - 01.2018
- Manage and maintain Windows Server and Linux environments, ensuring system up-time and security compliance.
- Maintain and optimize Windows Server infrastructure, including patch management, role-based access control, and performance tuning.
- Administered Citrix Virtual Apps and Desktops, enhancing user experience and performance for enterprise users across multiple locations.
- Configured and managed cloud services, including Azure Active Directory, Virtual Machines, and Security Policies, aligning infrastructure with organizational needs.
- Implement and troubleshoot network protocols (BGP, MPLS, OSPF) to improve connectivity and network performance.
- Oversee enterprise wireless network infrastructure, ensuring seamless connectivity and minimal downtime.
- Automate system tasks using PowerShell and Python to improve efficiency and reduce manual workloads.
- Conducted security audits and enforced best practices, strengthening system defenses against cyber threats.
Sr. System Administrator
Lockheed Martin
01.2010 - 01.2012
- Managed and maintained Windows Server and Linux environments, ensuring high system uptime and adherence to security compliance.
- Administer Citrix Virtual Apps and Desktops, optimizing performance for enterprise users across multiple locations.
- Configure and manage cloud services, including Azure Active Directory, Virtual Machines, and Security Policies.
- Oversee enterprise wireless network infrastructure, ensuring seamless connectivity and minimal downtime.
- Automate system tasks using Power Shell and Python to improve efficiency and reduce manual workloads.
- Implement and troubleshoot network protocols (BGP, MPLS, OSPF) to improve connectivity and network performance.
- Collaborated with cross-functional teams to plan and execute network expansion projects, improving hardware capacity and performance.
System Admin
Navy IPO
01.2007 - 01.2010
- Supported Information Assurance implementation for Nippon Accreditation in 2008 and 2009 across secure and non-secure systems.
- Utilized firewalls, intrusion detection and prevention systems (IDS/IPS), and VPNs to enhance network security.
- Conducted system scans using Gold disk and Retina to identify and prioritize necessary remediation actions.
- Reviewed remediation actions and exceptions thoroughly to ensure compliance before implementing changes.
- Executed server remediation tailored to the specific applications or programs running.
- Reviewed exceptions that did not require any remediation for all Navy IPO servers to run properly.
System Engineer
SOS International
01.2005 - 01.2007
- Executed complex hardware deployments and software upgrades to support key projects.
- Installed, configured, updated, and maintained Microsoft Windows servers 2000/2003 for SOS International.
- Configured and Installed Cisco 3750 catalyst trucking on all switches and implemented VLAN with VMPS on layer 3 switches.
- Collaborated with Microsoft and vendors to troubleshoot and resolve system issues effectively.
- Oversaw problem management at Tier II-III levels to ensure efficient troubleshooting.
- Supported the planning and migrating from windows 2000 to windows 2003 active directory, and 2010 exchange server.
- Maintained and upgraded automated scripts for application products to facilitate operational tasks.
- Configured firewalls for all VPN remote access.
SYSTEM Administrator
United States Senate
01.2002 - 01.2005
- Installed, configured, and maintained windows 2000, 2003 exchange servers, and active directory.
- Coordinated planning for upgrade from Windows 2000 to Windows 2003 Active Directory and Exchange Server, ensuring smooth transition for users.
- Employed Ghost utility to streamline deployments and enable quick recovery from system crashes, facilitating efficient upgrades and installations.
- Provided technical support to State Senate members, addressing issues related to exchange server, new installations, upgrades, and troubleshooting barriers.
- The State Senate had over 200 different domain controllers with over 10,000 users.
COMMUNICATIONS
U. S Marine Corps
01.1994 - 01.2002
- Developed expertise in network support, system planning, product evaluation, and selection; delivered comprehensive installation, troubleshooting, and maintenance of voice and data communication systems.
- Implemented TCP/IP, Windows NT 4.0, Windows 2000 server.
- Identified and addressed connectivity issues, fixed hardware malfunctions, and solved software and network problems across the local area network and wide area network.
- Configured and maintained firewalls.
- Implemented and configured Storage Area Network Devices.
- Enhanced customer operational performance by efficiently resolving IT issues.
- Maintained upgrades and monitored all server and internal infrastructure equipment.
- Created detailed specifications for network systems.
- Conducted routine checks to ensure optimal network performance.
Education
AA - Computer Science Network Communication Management
Devry University
Arlington, VA10-2010
Skills
- Network troubleshooting
- Network performance monitoring
- Network optimization
- Network documentation
- Cloud infrastructure
- Virtual network management
- Security standards
Certification
- Cisco Certified Network Professional (CCNP) - Currently preparing for CCI certification.
- AWS certified
- Security Plus CE
Clearance Level
Top Secret/SCI
Timeline
NETWORK Engineer
SMS
07.2024 - Current
Network Engineer
VSO
01.2022 - 07.2024
NETWORK Engineer
PAE
01.2020 - 01.2022
Network Engineer
Allied Associates International
01.2018 - 01.2020
System Admin
Bruin Waves Solutions
01.2012 - 01.2018
Sr. System Administrator
Lockheed Martin
01.2010 - 01.2012
System Admin
Navy IPO
01.2007 - 01.2010
System Engineer
SOS International
01.2005 - 01.2007
SYSTEM Administrator
United States Senate
01.2002 - 01.2005
COMMUNICATIONS
U. S Marine Corps
01.1994 - 01.2002
AA - Computer Science Network Communication Management
Devry University