Nhan Do Email & Phone Number

Rockville, Md, Us

• Responded and resolved cyber security incidents, and proactively prevent reoccurrence of these incidents. • Performed complex security investigations and root cause analysis by utilizing Azure Defender, Splunk, FireEye, Open Source Intelligence (OSINT) tools to collect information• Data mining through use of SIEM or other data analytics solutions• Performed phishing investigations and response to users who reported suspicious email. Analyzing email raw data using MS Defender and different OSINT tools• Ensured that all security events are properly documented/tracked• Developed documentation in support of response processes and/or procedures• Determined level of event severity and escalate as necessary, in correspondence with Standard Operation Procedure.• Maintain visual display knowledge wall to monitor network traffic, collective of information for data analyzing in real time by utilizing Splunk dashboard, and other OSINT applications. Ensure the knowledge wall computing system is up to date and connected to the network.

• Provided advanced technical support, troubleshooting, monitoring, management, and maintenance to the agency's Mobile Device Management (MDM) application, designated enterprise messaging system, various mobile device hardware, and mobile device operating systems.• Monitored daily for non-compliance mobile devices. Ensure network connectivity of all MDM related servers on VMware vCenter. Created users’ accounts, granted permission, and ran report on mobile device inventory as requested• Performed maintenance and patching of the MDM application, server OS, and all MDM enterprise servers monthly.• Assisted the Agency with developing, and implementing 508 compliance policy to make information and communication technology accessible to people with disabilities• Provided System Administration to end-users as well as Tier1 and Tier2 technicians.• Provided usage training on VMware Workspace One to support staffs/asset managers in field office.• Maintained daily routine operation of Knowledge wall to monitor and report as requested to support the enterprise in a high availability perspective. Ensured the system’s OS is up-to-date and running properly daily. Troubleshot network conflicts and escalate if needed.• Provided assistance to keep track all mobile devices that are deployed in oversea hostile area, as well as maintain opened line of communication. Tracking managed mobile devices on VMware Workspace One in real time when requested. Coordinated with various service providers to ensure cellular coverage for all deployed devices.• Set up and maintain operation of Video Teleconference hardware with Polycom system. Coordinated with network administrator and remote support staff for testing prior to the meeting to ensure all sites are connected, and compatibility of other sites’ video conferencing equipment. Provided basic training usage to users.

• Provided white glove service for Executive level end-users. Recovery Time Objective is 4 hours. Required to travel to various sites for support.• Provided System Administration to end-users, such as onboarding endpoints, and managing users' permission in Active Directory• Troubleshot issues on different models of mobile devices from Blackberries, and Dell tablets. Activated and enrolled Blackberries on Blackberry UEM. Reimaged Dell tablet to standard configuration.• Investigated conflicts on network resources for networked printers, and other peripheral devices. Ensure all supported endpoints and networked printers in their perspective VLAN.• Maintained and controlled operation of Video Teleconference hardware with Polycom system. Provided basic training usage to users.

• Task allocation for all team members to ensure support availability is within Service Level Agreement.• Troubleshot desktops and laptops on-site and remotely. Troubleshot hardware issues, and resolved software conflict. Installed software and imaged workstations accordingly to regulatory baseline via On-command software and Ghost application. • Experienced in OS migration. Maintained workstations in COOP sites. Inspected and updated all endpoints at the COOP site routinely. • Assisted in developing and implemented service related procedures. Updated Standard Operating Procedure based on feedback of team members.• Set up and maintain operation of Video Teleconference session with Polycom system.