Sungsu Byun Email & Phone Number

Calgary, Alberta, Canada

- Firewalls, IPS/IDS, Palo Alto- TCP/IP, IPSEC Site to Site VPN, GRE, DMVPN, Client VPN, NAT, VRF technologies- Data Center technologies such as VPC, VDC, FcoE, FC, virtual switching- Cisco IOS and NXOS- F5 Configuration - Layer 2 Technologies such as switching, VLAN, spanning tree- Layer 3 Routing protocols: MPLS, BGP, EIGRP, OSPF- Software-defined.

Montreal, Canada Area

- Configure and Install Cisco 3560 Switches, Extreme Networks 8000 Series in PCI Environment- Develop and Maintain documentation of procedures, Create network implementation - Install and Configure Firewall (Pfsense / ASA 5505) in PCI Environment- Active Directory, GPO, DNS Configuration and Implement PowerShell Scripting - Monitor and Troubleshoot Network.

Seocho-gu, Seoul, Korea

- Install and configure 15 VoIP systems in 3 major telecommunication company in Korea - Interwork between several VoIP Gateway and MGC or Call manager using VoIP Protocol - Implement VLAN, STP and Port Channel on CISCO 2960, 3750 Switches in VoIP Systems- Configure network systems based on routing protocol OSPF, EIGRP, BGP through the GNS3 - Complete three.

Bucheon, Gyeonggi-do, Korea

- Performed preventive maintenance on network equipment based on Win OS- Checked up daily the network equipment to prevent the spread of computer viruses- Configured and Installed the automated systems based on PLC that had improved productivity by 15%- Installed security programs on the computer system- Main tools used: Win2000, Windows XP, MYSQL

Guro-gu, Seoul, Korea

- Development of the controlling program of the automated teller machine (ATM) based on VC++, SQLLITE- Maintenance of managing program of ATM [Dephi 7.0, MSSQL 2005]- Mainly used language and DB: VC++ 6.0, Delhi 7.0, MSSQL 2005

Guro-gu, Seoul, Korea

- Develop a human-machine interface (HMI) software which controls the lights with programmable Logic controller (PLC) through the Modbus protocol - Mainly used language and DB: VC++ 6.0

Yeongdeungpo-gu, Seoul, Korea

- Maintain and manage Java Web-based Systems for the Korea Housing Corporation (KHC) - Update the database(DB) in accordance with the requirements of the client company and providethe suitable DB Query - Converse the existing the internet subscription system of KHC which was mixed with ASP and JSPInto the one run only with the basis of JAVA- Mainly used.

Ulju-gun, Ulsan, Korea

- Developed the lighting management application based on the LonWorks system to provide significant energy savings in offices, factories and homes- Participated in the 2008 COEX’s conference in order to present the application- Main tools used: Visual Basic, MS SQL

Jinhae, Gyeongsangnam-do, Korea

- Installed the computer network system and Linux web server in the entire site- Responsible for administering Linux, Sun OS server and security programs - Maintained the computers in the entire site (about 300)- Provided various technical services to maintain network devices- Configured and Installed the CISCO switches and Routers.- Provided network.