Rainier Castillo Email & Phone Number

Los Angeles, Ca, Us

Los Angeles, California

Work at Data Systems Bureau unit of the Los Angeles County Sheriff's Department. Assigned to oversee the north region, which includes a detention complex and the court division - west bureau. Duties include:Assisted users with account management and security.Performed troubleshooting and replaced hardware on various systems, components and devices.Conducted PC performance analysis, troubleshooting, and applied corrective measures.Resolved connectivity issues by evaluating problem source is local or environment wide. This is done through various tests, changes on the network switches and configurations to isolate the problem using various network management tools. This includes laptop wireless configuration, as well as iPhone devices.Modified and configured various Cisco switches when necessary to apply new vlans and subnets based on unit movements, upgrades or replacements. Wireless devices such as access points have been added to this responsibility. We maintain about 20 servers on our sites, including various HyperVs and VMs. Performs the implementation of backup and recovery solutions.Installed, setup, and configured software in support of Custody Division business applications.Performed analysis to help resolve problems with these same applications in a timely manner through prompt documentation, investigation, and proper escalation to specialized units.Provided appropriate security permissions to network sources.Performed prompt anti-virus and malware removal procedures to ensure minimal damage to the local systems and servers. Ensures network security according to policies and procedures and documents information security processes.Performed help desk support with an on-site team, and conduct written and verbal training to users to be able to adapt to the continuous system and application changes.Interact and meet with other management and support staff to evaluate future needs for system maintenance, network expansion and application developments.

Los Angeles, California

Assisted the senior appraiser in valuation cases in the Personal Property Division. These properties include private and business aircraft and marine vessels.

Makati, Philippines

Responsible for maintaining subroutine updates for the accounts payable/receivable module. Maintain application modules to ensure further expansion to the system can be applied. Developed and coded various subroutine based on specs.