• Enhanced firewall policies by implementing web and DNS filtering, as well as inbound and outbound SSL inspection, leading to a 30% increase in network security and a substantial reduction in vulnerability to threats.• tuned BGP attributes to optimize traffic distribution and perform load-balancing.• Implementing ACL for restrict unauthorized access and appliance with company regulations. • Reduced average troubleshooting time by 20% to minimize network downtime through precise diagnosis.

Organized a large volume of incoming packages on shelves and entered information into database accordinglyPerformed Help desk functions, answering residents' requests in person and by phone

Performed as a team member on an agile team focused on software delivery and supportConducted database normalization to MS SQL Server and migrated it into Oracle DBCollaborated with a back-end engineer by analyzing and providing data from databasesTested whole system regularly to see if it is aligned with desired resultProvided regular reports at biweekly international meetingsFixed bugs using typescript with Angular framework in front-end

Distributed jobs with 2 team members and collaborated with product managers to ensure products meet business needsCreated a Zigbee network consisted of a Coordinator and an End Device, performing functions of environmental control and lightening control