JOON KIM

240 Amboy Ave

Metuchen, NJ 08840

 

 

 

SKILLS:

 

 

 

 

 

 

 

 

FirstWatch HA, Veritas Cluster, Sun Cluster, Solstice Backup, Legato Networker, DNS, NTP, NIS, NFS,

AFS, Autofs, SAMBA, sendmail

 

 

 

 

Kerberos, Inktomi Traffic Server, Sun ONE / I-Planet Directory Server, Netscape Directory Server,

Netscape Proxy Server, WebSense Enterprise, I-Planet Web Server, SUN ONE/Netscape Enterprise Server,

IBM HTTP Server, Apache, IBM Websphere AS, Real G2 Server (Media IXT), Transarc DCE, Encina

 

 

SUN SPARC 1000E & 2000, SPARCstation 20, 10, 5, LX; SUN SPARC 4/260, 4/280, 4/490, 4/670, 4/690

 

Nokia Voyager IP440 / 530 / 650

IBM Bladecenter, RS 6000 Model 270 & SP/2

HP-9000

 

Sun T3, Sun StoreEdge, Sun Storage Array A5000, Netapp Filer, SPARCstorage Array 102,

Raid Power Series 3000 (EMC Clarion)

EXPERIENCE:

 

SYNASIA INC 01/09 –

Solaris / Linux System Administrator

• IT support and administration for Sun and Linux systems. Maintained Internet websites. Assisted developers with compile environments and revision control.

• Administered internal internet services such as DNS, NIS, firewalls, proxies.

• Supported development / production environments, including systems integration of developed software for production.

• System monitoring: system and network threshold alerts.

• Support for high-traffic web services, including requirements & capacity analysis, service configuration, monitoring & troubleshooting, and change management.

• Wrote documentation for maintaining systems, and their configurations, and operational instructions at the system and application levels.

 

CITIGROUP INC       05/07 – 12/08

UNIX Security Engineer

 

• Supported IT Risk Management Operations managing perimeter security (Checkpoint firewalls and BigIP. Responsible for data center architecture, troubleshooting, and training for migration of current Data Transfer Environment (with internal and external clients) to a secure platform, Citi Secure File Transfer, with additional support for Perl / Expect script automation of existing applications into the new environment. Manned first level technical support hotline.

 

• Created documentation to cover all aspects of the Citi Secure File Transfer infrastructure, including hardware/

software environment, technical support plan (w/hotline), flowcharts for support accountability, implementation

procedures, required forms (internal websites), account creation & migration tasklists; inventoried, analyzed,

documented all existing automation scripts for migration feasibility, procedures to add PGP / TLS functionality,

 

BANK OF AMERICA 02/06 – 05/07

SUN UNIX System Administrator

• Supported Data Center Operations for Risk Management organization, which consisted of system builds, kernel

patch upgrades, software installation, account management, system & network troubleshooting, system backups.

• Monitored second shift Data Center hotline, fielding all user/vendor related issues. Monitored and resolved

trouble/request ticket queue of all formal requests for service.

• Completed NFS migration project of all user accounts from legacy NFS servers to Netapp NAS filers.

• Conducted daily monitoring / status of all data center hardware.

• Developed proposals for recommendations for infrastructure enhancements.

 

MORGAN STANLEY 12/04 – 02/06

SUN UNIX System Administrator

• Worked as Solaris / Linux system administrator supporting the Compliance Division (AML - Anti-Money

Laundering Dept).

• Responsibilities include architecture / design of application servers, operating system upgrades, application

deployment, patch management; design, build, and test system backup and recovery, manage monitoring system

(NetCool, Sitescope)

• Diagnosed and resolved SAS, Websphere, and DB2 issues.

• Documented all workflow details for all production batch applications.

• Monitor, diagnose, and fix SAS ETL processing of raw transaction data.

• Supported the software development groups to resolve application issues and daily jobstream activities, involving

applications for both the Institutional and individual Investment Management groups.

• Completed jobstream automation for various manually run applications using Perl and shell scripting.

• Documented all outages in services and as well as triage activities.

 

MCEDISON CORP (02/2003 – 12/2004)

SUN UNIX System Administrator

• Installed and configured Oracle 8i servers running on Sun E6500 servers with A1000 and D1000 Storage Arrays

for the Payroll Department.

• Provided infrastructure support for Sun E4500/5500 servers for a number of Sybase SQL servers.

Responsibilities included monitor of Legato Networker system backups, and support of Sybase DBAs for

production and development environments.

• Monitored application performance and resource utilization of all Solaris systems. Ensured that all production

systems had the essential monitoring tools installed, tested, and used to analyze system performance issues.

• Provided technical assistance for system software and associated activities such as system hardening,

implementation of SSH, Veritas Volume Manager/File System.

• Wrote runbooks to document system configuration and its hardware/software components, maintenance and

troubleshooting procedures.

• Devised proposals for sizing and scaling of servers

 

AIG / SUNGARD (02/03 – 03/03)

SUN UNIX System Administrator

• Participated in Disaster Recovery Test project. It involved SUN and HP hardware: SunFire V120, V, 10000; Sun Enterprise 5500, 6500, HP9000.

• Installed Solaris 2.6-2.8 on all hardware to replicate production environment, including Veritas Volume Manager, Veritas Cluster, Legato Networker, LVM (Logical Volume Manager) for HP. Restored all machines backups utilizing Legato Networker.

• Monitored testing of application integrity on all restored machines.

 

TD SECURITIES (11/02 – 02/03)

SUN UNIX System Administrator

• Upgraded DNS Bind 8.2.1 to 9.2.3, from Sparc 5 to Sun Netra T1, for all outbound resolution services.

• Migrated qmail to sendmail, for all outbound mail services.

• Wrote shell scripts to automate system backups, log archival, daily tasks and processes.

• Implemented system accounting, and clustering configurations utilizing Veritas Cluster.

 

HERZOG INC (06/02 – 11/02)

SUN UNIX System Administrator

• Engineered Jumpstart installation and configuration for a group of Sun E4500s with Sun Disk Array A1000’s and Hitachi 9530V SAN storage arrays. Utilized Sun Raid Manager, Veritas Volume Manager, and Veritas Cluster to build a redundant high availability environment.

• Provided support for Internet infrastructure environment, which included Checkpoint VPN and firewalls,

I-Planet proxy Servers, I-Planet and Apache Web Servers, LDAP servers, DNS Bind, intrusion detection

systems (ISS).

 

ING BARINGS, INC (3/2001-5/2002)

SUN UNIX Security Engineer

• Devised and implemented the design and architecture for new Internet infrastructure environment, which included firewalls, caching proxy servers (including audio/video streaming technologies), LDAP servers, DNS Bind servers, intrusion detection systems (ISS), and Web content filters.

• Created new network topology of the Internet security environment.

• Installed, configured, and provided support for Checkpoint (4.0/4.1/NG) firewalls running on Sun Solaris Netra T1’s (Management Stations) and Nokia IP440/530/650 platforms (IPSO 3.3/3.4).

• Configured, implemented, and provided support for Inktomi Internet proxies and Websense filtering software, using EMC Symmetrix Storage arrays for proxy caching; Netscape / I-Planet / SUN One Directory Server (LDAP), I-Planet Messaging Server, I-Planet and Apache Web Servers; ISS Real Secure intrusion detection system; DNS design and build. (Bind 9.2.3); Ace Server for Secure ID authentication via remote dialup to corporate servers.

• Provided enterprise support of existing ING/ABN environment using Netscape Proxy servers using IBM Network Dispatcher for load balancing, Netscape Directory Server, Checkpoint Firewall/VPN, DNS Bind, and various Web-based applications.

• Assisted in design and configuration of SNMP monitoring infrastructure using HP Openview and Cisco Secure.

• Documentation of legacy and new infrastructures.

 

FUJI BANK / BROADWING (1/2001–3/2001)

Sun System Administrator/Project Manager

• Migrated Risk Management / Sybase applications from a Sun E3000 to a new architecture that included the Sun E10000 platform containing multiple domains in a fault-tolerant configuration (between NYC and Jersey City), utilizing Sun Cluster, Veritas Volume Manager, and Sun T3 Storage Arrays.

• Provided ongoing support for a web hosting company, Broadwing: Sun E4500s using Veritas Cluster, Veritas Volume Manager, Veritas NetBackup, I-Planet Web Server, Sybase 11.

• Performed traditional project management tasks, documented all ongoing projects, managed UNIX SAs and network engineers on the project team, served as point of contact between my client(s) and various vendors.

 

PRUDENTIAL INSURANCE CO OF AMERICA (8/2000–11/2000)

UNIX Web Administrator

• E-Commerce Systems Division: Provided Solaris and AIX system and network administration in efforts to build and maintain Netscape Enterprise Servers, IBM WebServer and Websphere, for their Internet websites.

• Conducted installation and configuration of Websphere Application Servers, support of developers in bringing Java applications under Websphere control.

• Supported Checkpoint Firewall-1 infrastructure for external and internal firewalls.

• Created documentation / proposal for SSO implementation.

 

MERRILL LYNCH, INC (4/1999–8/2000)

SUN Security / Administration Engineer

• Internet Support Services: Provided support and troubleshooting for Global Internet Firewalls (250+) on Sparc architecture, running Checkpoint Firewall-1 and ANS Interlock.

• Supported different application servers (SPARC 450, Ultra 2) in the DMZ data center at this location. Provided support for Veritas Volume Manager, Veritas FileSystem, DiskSuite, and HA Qualix on these servers.

• Initiated project to manage Jumpstart installation, configuration, and maintenance of a new architecture to replace existing Internet proxy servers. Platform consisted initially of SPARC Ultra 2’s (eventually moved to 420R’s) with StorEdge Network arrays (for caching), running Inktomi Traffic Server, integrated with Real G2 Server and Websense site filtering software, and Cisco Distributed Director for load balancing (using round robin DNS).

• Provided daily support of all production Internet proxies, particularly when interfacing with I-Planet, IIS, and Apache Web Internet/Intranet Servers, which served all of the company’s USA sites.

• Rolled out similar environments for international sites through creation of documentation to describe proxy environment, installation/setup procedures and problematic technical issues.

 

J.P. MORGAN INC Investment Management (8/1998-3/1999)

SUN UNIX System Administrator

• UNIX infrastructure group: supported production / development / test UNIX environments, including operating system and application software upgrades (for Y2K compliance), automation of server / workstation builds using Jumpstart, Solaris package creation and installation, network connectivity issues, troubleshooting of system and network problems, administering to NIS, NFS, and internal DNS issues, system backups using Legato Networker, support of Java and C++ developers and end users in various projects, system and network security assessment , support for Sybase DBA group, and Netscape Suitespot server administration.

• Setup & supported Market Data environment to support Reuters, Bloomberg, et al.

 

MARSH & MCLENNAN INC (2/1998–6/1998)

UNIX System Administrator

• Technical Architecture team: UNIX system administrator on SUN and HP hardware platforms, in support of ongoing development and test environments for a global database application (Sybase, Documentum) involving manipulation of insurance-related documents and forms.

• Supported day to day activities of all development staff, as well as conforming each different development environment to a common standard: this included Perl and Korn shell scripting in support of in-house applications, creating personal profiles for each environment, shell scripting to automate software distribution (upgrades and new releases of the application(s).s

 

J.P. MORGAN INC (6/1997–1/1998)

SUN UNIX System Administrator

• Supported production services for Global Technology: SUN system administrator. Responsibilities involved capacity planning and analysis, writing proposals for building architectures for environments to be used by different business groups, as required. Built and configured SUN servers using a company customized Jumpstart script(s), Sybase installation and configuration, Veritas Volume Manager and DiskSuite implementation and support, as well as Transarc DCE and Encina middleware products. This included ongoing UNIX system and network, and application support for these environments. In addition, provided second level technical support for global DCE issues.

 

PHILLIP MORRIS, INC (3/1995–6/1997)

Sun System Engineer

• Information Services Organization, Site Services: SUN / SYBASE system administrator. Involvement included setting up an data center for distributed computing environment, housing client / server architectures and applications. My responsibilities included the following:

• Generation, documentation, implementation, support of UNIX system standards: backup strategy, naming conventions for accounts, databases and machines; system security; NIS; NFS; DNS; filesystem layout; system accounting and auditing; printing facilities, system backups.

• Setup and implementation of intranet services: installation and configuration of Netscape servers on SUN hardware using Jumpstart, to provide Web services; setup of websites and home pages for all Sales and Marketing Information Services personnel, utilizing HTML, CGI, Java, and Perl. Daily system and Sybase administration of ongoing projects for Credit, Demand Forecasting, Brand Analyst, and Marketing.

• Served as project lead for devising a migration strategy of Sun environment from SunOS to Solaris, and their respective applications. Installation, configuration, and maintenance of software packages: Veritas Volume Manager, Qualix HA, SPARCworks C/C++, Legato Networker, Sybase 10, SQL-Backtrack, Ptech, Forte, OMW / Kappa.

• Evaluated and tuned system and network performance of 4 MB Token Ring and 10 MB switched Ethernet networks.

• Troubleshooted connectivity problems between SUN Solaris and PC / MS Windows / Windows NT, MacIntosh, Novell, and IBM mainframe platforms.

 

J.P. MORGAN, INC (9/1994–3/1995)

Sun System Administrator

• Global Branch Support: Supported Sybase system administration in production and development environments.

• Created technical documentation for infrastructure support to assist rollout of trading floor and back office

Sybase applications to global branch offices.

• Performed system administration tasks included installation of hardware and system software; application

software installation, configuration, and upgrades; network troubleshooting and performance tuning;

configuration and troubleshooting of DNS, NIS, NFS, PPP, sendmail, and network connectivity.

• Performed dInstallation and configuration of Sybase SQL Server. Created and implemented procedures for

database backups, database consistency checks, synchronization of data between primary and secondary

database servers using transaction logs, supported production and development environments for trading floor

environments running Sybase.

 

AT&T BELL LABORATORIES (4/1993-9/1994)

Sun System Administrator

• Provided system administration services for two research groups: Transmission Services and Facsimile / OCR Processing.

• Performed hardware and system / application software installation and maintenance, network administration of

TCP/IP, SLIP/PPP, and UUCP connectivity within the organization, including the company’s Internet gateway,

email configuration and troubleshooting, system accounting and security, system performance assessment and

tuning, system backups, and PC integration into TCP/IP environment.

 

J.P. MORGAN, INC (7/1992–4/1993)

Sun System Administrator/Sybase DBA

• Sybase Infrastructure group: Provided system and database support for Sybase to various development projects and global production systems. This included installation and configuration of Sybase SQL Server 4.8 & 4.9.1, and created runbooks for installation / configuration of various software clients.

• Performed system and network administration of development and production machines running Sybase,

including system architecture recommendations, hardware and software installation, configuration, and

troubleshooting, NIS, DNS, NFS, shell scripting to automate daily system tasks, system backups, software

distribution and licensing, and network integration of SUN, PC, and MAC hardware into TCP/IP environment.

• Provided guidance and support of development/QA environments for Equities, Market Data, Global Markets,

Emerging Markets, Human Resources.

 

GENERAL LOGISTICS INC / COMBINED DATA RESOURCES (10/1989–7/1992)

SUN and PC System Administrator

• Performed account and filesystem management, quotas, kernel configuration and tuning, system backups, hardware/software installation and upgrades, network troubleshooting (Ethernet, TCP/IP, RIP, NIS, NFS, DNS), Sybase system administration, shell scripting, and technical field support for OLTP Sybase application, as well as help desk support.

• Traveled to remote sites and built Application infrastructure: SUN and PC installation and troubleshooting,

installation of peripheral devices, installation and configuration operating system and application software.

 

EDUCATION:

YALE UNIVERSITY; B.A. Economics/Philosophy