Raymond Chang Email & Phone Number

California, United States

Daly City, California, United States

San Bruno, California, United States

Redwood City

• Partnered with Business Partners in converting the legacy system of vCenter with 12 ESXi hosts which had more than 100 VMs to a new Nutanix Hyperconverged Infrastructure.
• Migrated 3 ASA Cisco Firewall to SD-WAN Fortigate Firewall, Replaced BitDefender Antivirus solution and Nessus Vulnerability scanner servers with Fortinet Enterprise Management Server Endpoint solution with more than.
• Reduced and mitigated more than hundreds of daily alerts from Nagios Core by tuning the Nagios, patching and upgrading 4 Windows 2012 AD servers, 8 Windows 2008 R2 application servers, 75 + Linux servers, 2 SANs, 2.
• Oversaw 2 to 3 projects simultaneously; managed the full life cycle of Waterfall projects from inception through completion. Developed and monitored project budget requirements; reviewed billing and contracts..
• Managed the schedule, scope, budget, quality, and forecasting of complex projects through Waterfall SDLC phases. Utilizing Key Performance Indicators (KPIs) for continuous real-time project deliverable tracking.
• Developed standards across Infrastructure Services to allow for quality infrastructure improvements and provided solutions for requirements or technical issues that arise within project deployments.

San Ramon

• Managed, directed and lead multiple parallel projects with a 10+ IT professional team to get Bill of Materials for network segmentation projects. Participated in various UAT for VOIP systems and IVR solutions.
• Proactively created the plan to mitigate the Risk impact, managed dependencies, and resolve issues in the project to rollout FireEye HX server which detects and protect against unknown threats in the corporate.
• Collaborated with Marketing Team, Web Design Engineer, Senior Executives and IT Operation Team to build a Trust Website (http://www.five9.com/trust) interfacing the public for the organization.
• Responsible for planning, analyzing, reviewing and coordinating 50 Changes in adherence to Change Management procedure and lead the CAB weekly.
• Audited and monitored privileged access to critical information systems to ensure policy compliance. Investigated compliance-related matters and provided recommendations to remediate compliance issues.

San Francisco Bay Area

• Responsible to design, evaluate, review logs and test key financial applications to comply with both internal and external controls. Work with other Stakeholders to perform Integrated Change Control process.
• Provided internal consulting and account management; defining engagement scope, gathering requirements, defining deliverables, designing integrated solutions, and assisting technical implementations to various systems.
• Worked with project teams, participate in the development of design requirements, business cases to ensure compliance requirements are met. Work proactively with project and program managers to resolve issues.

Dallas/Fort Worth Area

• Responsible for all Data Center infrastructure included wiring, diagnosed hardware/ software problems, and security. Performed daily administration, ghosted Windows servers, troubleshot blue screen, outages, load.
• Recommended backup hardware and software. Implemented, documented and conducted computer system backups and restores on over 80 servers using DLT and DAT tape technologies with Netbackup software application to achieve.
• Built, installed, and maintained a network of 250+ Dell, HP and IBM Servers using Windows 2000/2003 operating systems. Increased reliability and support services used by more than ten thousand users daily.

San Francisco Bay Area

• Helped develop and evaluated the company to comply with Sarbanes Oxley internal control environment. Assisted in writing procedure documents and related controls. Tested, evaluated and advised processes supporting.
• Performed FSCM monitoring, account reconciliation and access monitoring on AS/400, Unix, Lotus Notes, Active Directory, and HR payroll system. Reduced deficiencies from internal and external auditors by providing.
• Generated Logs and monitored Intrusion detection from IDP servers and reported issues to management. Worked with other systems administrators to update the required fixes and patches on Windows systems from viruses and.

365 Main Street, San Francisco, CA

• Supported 200 Windows 2000 servers, utilized terminal services and Citrix MetaFrameXPe server farms in a large-scale enterprise environment. Responsible for testing,installation, configuration and inter-operations of.
• Administered the installation, maintenance, hardware, software, firmware and allrelated systems involving Fat and Thin Client workstations on various operatingsystems. Increased user productivity by 30% by upgrading.
• Planned and conducted a successful disaster recovery test by researching currentnetwork, supplying software, validating backup tapes, building backup servers and tapelibraries and participation in the 12-hour, 20.
• Provided indispensable system administration and account management services,including user and security administration, file and directory access, and remote accessservices. Supported technical help and managed 3000.

500 Howard Street, San Francisco

• Responsible for IBM midrange AS/400 server’s system and users management, dailybackup, software and hardware upgrade, EDI transmission, performance and securityplanning.
• Performed new software products for beta testing on AS/400, NT and Novell servers.Established, maintained and ongoing configuration of TCP/IP Networks.
• Installed, configured and troubleshooting of personal laptop computers and LAN PC’srunning Windows 95, 98 and NT environments.
• Assisted other system administrators on setting up routers, hubs, network printers,Novell Client PCs, VPN and dial-up connection to the servers.
• Enhanced and supported a relational database application used by the department.Maintained, designed and created databases using MS Access.