Thinh Trinh Email & Phone Number

Remote

Responsible for monitoring and maintaining Linux servers in both Production and R&D environments within Google, Amazon, and Azure Cloud. My role involves managing monitoring tools such as Zabbix, Grafana, Nagios, and Hadoop clusters to ensure the highest level of infrastructure availability. I proactively monitor and test applications for potential bottlenecks, identify solutions, and implement fixes to improve performance. Additionally, I write and maintain custom scripts to enhance efficiency and reduce human intervention. I participate in the design of information and operational support systems, ensuring robust security, backup, and redundancy strategies are in place.

Create, adapt, and maintain system configurations using Puppet, and assist in migrating off legacy CFEngine tools. Participate in engineering, deploying, and maintaining new solutions and services for internal customers. Act as liaison for Systems Administrator team to one or more internal company divisions. Designing and Implementing AWS VPC environments with micro services servers and Jenkin build servers for Commission Junctions division. Help with custom AMI creation for faster deployment. Provide after-hours support when required, and respond to outages, incidents, and alerts. Demonstrate expertise and leadership as local subject matter expert (SME) in one or more positions:Netscaler Load Balancing, VIP configurations, Internal, external, and globally-dynamic DNS, Operating systems standards, Hardware standardsAuthorization and authentication via LDAP, IPA, NIS, Winbind, sudo, etc.Nagios Monitoring, Metrics collection, graphing, and trendingSystem and Security patching with YUM repositories

Woodland Hills

Architect, design and implement all production and pre-production infrastructure solution in our OpenStack based private cloud as well as AWS. Work with other teams such as System, Network, Software Engineers to define requirements and standards. Develop and implement plans for deploying new services in a highly automated environment. Research, test, and implement new technologies to support the application architecture. Keep documentation up to date as designs between projects change. Participate in OnCall rotation and typically acting as Level 2 Escalation. Manage and configure monitoring tools such as Nagios, Pagerduty, Panopta. Provide first point of contact for all outages that may occur. Responsible for training new Site Reliability Engineer employee, documenting troubleshooting steps and procedures to Confluence and Google Doc. Prepare weekly performance reports to managers and directors using Service-Now ticketing solutions. Help configure filters and dashboards in Service-Now for users in TechOps group. Work with Application Engineers to make configuration changes through Puppet and CFEngine. Also work with Application Support team to help troubleshoot Advertiser reporting issues with our 3rd party providers such as MSN, Google. Help System Engineering team with server provisioning and maintaining NFS filer.

Deploy, configure and maintain Redhat Linux servers, PostgreSQL servers, Cisco Routers, NetScaler load balancers, and NexentaStor SAN storage devices. Independently coordinate complex system deployments, including installation and configuration of hardware, loading operating system software & patches, and running tests or diagnostics to ensure a successful implementation. Use Puppet and Cobbler to automate the above. Run application builds and deploy applications for testing and to production environments. Support the use of cloud computing technologies such as Amazon’s EC2, S3, and Elastic Map Reduce services, as well as Hadoop and Cloudera. Prepare documentation to record the deployment process and outcome. Troubleshoot network and systems related problems and resolve them. Recommend new processes or enhancements to existing processes to make better use of limited resources and time. Work with developers to integrate new applications into our OpenNMS based monitoring.

Provide 1st tier troubleshooting for Tech Ops group. Monitor and work with many different monitoring tools such as Remstats, Qradar, Tripwire and BMC Event Managers. Assist other Operations departments with multi-level support to resolve complex, technical problems. Prepare regular and ad hoc system performance and client contact reports to submit to the NOC Manager. Take lead and ownership of deploying and maintaining hardware monitoring agents to all HP and Dell servers. Setup monitoring tools such Dell I.T Assistant, HP Insight Manager, PRTG Network Monitoring and Cittio WatchTower. Serve as on-call engineer during off-hours.

In conjunction with knowledge and expertise in LINUX/UNIX, daily operations include 99.99% uptime guarantee of systemicmaintenance to OC3 clientele. Configure applications such as NFS, DNS, Apache, PHP, MySQL, and Firewall. Monitoringnetwork traffic with Solarwind Orion, and provide remote hands upon customer's request with KVM/IP - building and rackingservers with multi-platform such as Linux, Unix, Windows. Handle disputes in a variety of specific technical situations suchas: debugging and troubleshooting for clients through Ubersmith Ticketing System. Impart in the maintenance of expansion forcustomer networking and infrastructure under various joint projects. Developed strong system administration skills in attentionto detail and the initiative to come up with creative solutions.

Respond and resolve Customer Service reported trouble tickets and escalate to a higher level of support based on documented procedures in a timely manner. Manage the trouble ticket queue and expedite all open issue to find quick and sound resolution. Develop process and procedure around HP OpenView and email alert notifications. Remote accessing Windows and UNIX servers to diagnose process and daemon errors and work with second level teams to resolve issues as necessary. Contact Telco vendors to report circuit problems and escalate open trouble tickets to find resolution. Create a report documenting weekly NOC activity. Take lead on various projects to improve NOC’s overall efficiency.

Monitored daily tools: CSP, Netcool, Openview ITO, VOIP graphs and etc. Perfected the first level in troubleshooting, UNIXbase servers, and Windows using both Putty agent as well as Windows Remote Access. Created trouble tickets in Remedysystem, RT and escalated to proper team as necessary. Created and maintained automated scripts for dial testing.

Managed Windows2k and Microsoft Exchange servers. Responsible for standard backups and performed Help Desksupport for departmental employees. Maintained proficiency in company working websites using ASP and Accessdatabases. Performed standard downloads and uploads of medical data to offsite AS400 server. Worked with new projectto increase performance with two Independent Physician Associations, IPA, http://www.downeyselectipa.com and http://www.stfrancisipa.com.