Pengfei Xuan's Resume (Last updated May 18th 2008)

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Pengfei Xuan

USA


http://hsuan.net

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OBJECTIVE

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A career opportunity as a Network/Systems/HPC Administrator that lets me utilize my extensive administration experience and explores new technology in computing and information science.

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SUMMARY

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Open Source Software, Unix/Windows Systems, Network administration and High Performance Computing (HPC) are my primary interests. I have 6 years extensive experience with Data Center and Computing Center operations and management, and excellent analyzing and problem-solving skills. The team I lead provides computing and information technology for 2000+ researchers.
I like new IT technology and learn new concepts and systems quickly. I often create good ideas, and realize them in the work. I can finish work independently, am a good team-worker and also a good leader for a small group.

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SKILLS

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Operating Systems:
  • 1 year Unix (AIX, Solaris)
  • 6 years Linux (Redhat, Red Flag, CentOS, Scientific Linux, Debian, SuSE)
  • 7 years Windows Server (Windows NT/2000/2003)
  • 15 years Desktop (PC-DOS/MS-DOS/Windows 3.1/95/98/Me/XP/Vista)
Networking:
  • Understanding of TCP/IP, UDP, ICMP
  • Network troubleshooting
  • Network design, planning, maintenance and upgrade
  • Cisco Switch and Router maintenance
  • Familiar with Intel's PXE netboot protocol
  • DHCP, NAT, SNMP
  • High performance network (10GE, Myrinet, Infiniband)
Security:
  • Extensive knowledge of Operating System security (Windows/Linux)
  • Secure internet services
  • LAN/WAN security (VLAN, DHCP Snooping/ARP Inspection, VPN)
  • Firewall (Cisco PIX/IOS Firewall, Fortinet FortiGate, Linux Firewall)
  • IDS/IPS (Snort, Cisco IDS)
  • Context Filtering (PIX URL Filtering, WebSense Enterprise)
  • Virus Protection (Symantec AntiVirus Corporate Edition)
  • Mail Spam (SpamAssassin, EQManager)
  • Host-based security(OS hardening, disabling or encrypting unsafe network services)
  • Security Policy Design, implementation
Services:
  • Web Server (IIS5/6, Apache 1.0/2.0, resin)
  • Web Applications (CGI, ASP/ASP.NET, PHP4/5, JSP)
  • DNS (BIND, Windows DNS)
  • Mail (EQmail/Qmail, Sendmail, SquirrelMail, Zembra)
  • FTP (vsftpd, ProFTPD, Serv-U, IIS-FTP)
  • Authentication (Active Directory, NIS/YP)
  • File and Print (NFS, PVFS, Samba, LVM, Windows Volume Manager)
  • Hosting (Windows and Linux Virtual Host, Virtual Private Server)
  • Remote Access (Telnet, SSH, RSH,VNC, Windows Terminal, Citrix ICA)
  • Database (MySQL, MS Access/SQL Server, Limited experience with Oracle/Sybase)
Application Systems:
  • Content Management System for website of Institute of Chemistry CAS
  • Academic Resource Planning for Institute System (Oracle ERP/Portal/ IAS/RAC/SSO)
  • Chemical Reagents Inventory Management and the Online Order System (Websphere, Weblogic, Tomcat, SQL Server)
  • Microsoft SharePoint Services/Portal
  • Internet User Authentication and Billing System
High Performance Computing:
  • Cluster install (SystemImager, SystemInstaller, SystemConfigurator)
  • Cluster administration (C3 SC3, sync_files opium, loghost, Switcher, netbootmgr)
  • Cluster monitoring (Ganglia, IPTraf)
  • Cluster resource manager/scheduler (TORQUE, Maui)
  • Cluster parallel libraries (MPICH-MX/MPICH2, Intel MPI, PGI MPICH, LAM MPI, PVM)
  • Math libraries (BLAS/BLACS/PBLAS/FFTW/LAPACK/ScaLAPACK/ ARPACK/ LINPACK, Intel Cluster Math Kernel Library, PGI Math Library)
  • Computational software (Materials Studio, GROMACS, MOPAC, Wien2004, ADF, ZINDO, Transiesta-c, Turbomole, MOLPRO, Gaussian, NAMD)
Open Source:
  • CMS (Drupal, Joomla, Typo3, Xoops, PHP-Nuke, PostNuke)
  • Hosting Services (DTC, Webmin/Virtualmin)
  • Messaging and Collaboration (Zimbra Collaboration Suite)
  • Vertical Search (Locust/asearchd)
  • Firewall Gateway (SmoothWall, Snort)
  • Network Storage (Openfiler, FreeNAS)
  • Virtualization (Xen)
Software:
  • Sniffer Pro, CiscoWorks, MRTG, SolarWinds, LANDesk, Citrix, Symantec Ghost, PC Anywhere, SecureCRT, Putty, RealVNC
  • Dreamweaver/Fireworks/Photoshop, MS Office/FromPage/Project/Visio
  • LabVIEW, MATLAB, AutoCAD
Programming/Scripting/Compiling:
  • Intermediate level BASIC, C/C++, Fortran
  • Limited Shell scripting
  • Limited HTML/ASP/PHP
  • 32-bit/64-bit Intel Compilers, PGI Workstation, IBM XL Compilers for AIX, GNU Compilers
Hardware:
  • Proficient in all forms of x86 hardware (from laptops to quad Xeon CPU servers, SuperMicro/IBM/HP/DELL/SUN)
  • Proficient in building up Server/Storage/Switch with proper components, DIY High-performance Services platform, Storage System and Computing Cluster
  • SATA/PATA/SAS/SCSI Network Storage and Direct Attached Storage
  • Sun SPARC hardware, Ultra series
  • Cisco Routers/Switches/Firewall
  • Fortinet FortiGate
  • Myricom Myrinet-2000
  • APC/ SANTAK UPS systems
  • Lots of co-location facility experience, large server installations, racking, power management, etc

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WORK EXPERIENCE

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Jul 2002 - Present
Network Administrator, IT Director

Chinese Academy of Sciences - http://english.cas.cn/

IT Director of Network Information Center and High Performance Computing Center, providing computing and information technology for 100 faculty groups, leading team of 3 person System Administrations responsible for 30 servers running network services, 4 Linux Cluster(200 computing node) running all kind of the parallel computing programs and 45 network equipments. We also provide software and security supporting for 2000 desktop PCs of faculty and students.
  • Lead development and integration of intranet and extranet solutions to meet the researchers' needs for information.
  • Delivered IT strategic plans, systems development and network infrastructure solutions. Designed LAN and WAN infrastructure, Access Control Management, administered and supported various operating system platforms, network capacity planning and general network management.
  • Administered and supported Multi-platform Operation systems, Windows Server (NT/2000/2003), Linux (Redhat, Debian, SuSE), Unix (AIX, Solaris). Monitored system tasks and resources, optimized and tuned up system and performed backup/restoration.
  • Implemented and maintained data center Infrastructure services, such as WWW, DNS, Mail, FTP, WINS, Print.
  • Designed, Implemented backup plan for all Application Systems. Oracle ERP snapshots and backups, patched and upgraded application system. Maintained departmental internal web site. Researched Open Source Software, apply new information systems to help scientists working.
  • Wrote some automation scripts to deal with system administration tasks with Shell/Perl scripts and archived all the old mail of users.
  • Planning, deployment and implementation of the institute's security policies, standards and procedures. Performed vulnerability assessment to ensure appropriate protection has been utilized for the systems.
  • Designed, implemented SSH, VPN solution to ensure data confidentiality and integrity.
Designed, implemented Cisco PIX Firewall and router package filtering technology.
Designed, implemented Intrusion Detection (IDS) and Prevention system with Snort open source software, integrated it with Firewall to become intrusion-prevention systems (IPS).
Designed, implemented Context Filtering to LAN with PIX URL Filtering and WebSense Enterprise.
Designed, implemented Corporate Antivirus and Anti-spam defense, developed automation install scripts.
  • Monitored, inspected and analyzed logs, audit trails, network traffic and payload.
  • Troubleshooting and repairing servers, LAN and software issues; handled telephone helpdesk support.
  • Hardware maintenance and upgrade, directly handled all equipment negotiations and purchasing. Established working relationships with vendor partners. Responsible for the IT budget cost effective spending. Software licensing and IT contracts control.
  • Configured and Installed POLYCOM Video Conferencing Systems, supported International Academic Conference
  • Designing, implementing, and managing HPC and HTC systems.
  • Assisted researchers in effective use the Linux Cluster, including use of the Compiler, Math Library, Task Scheduler, large memory, High-speed networking, and parallelization.
  • Analyzed parallel program execution, and optimized parallel performance, planning and decision making necessary to meet the functional and performance requirements of users, assured smooth transitions as that environment changes.
  • Provided IT and HPC training for new PHD students and faculty group members.
  • Direct supervision, technical coaching 3 system administrators.
Project:
  • Designed, implemented a multi-tier, fully redundant network architecture. Successfully upgraded users' LAN from 100MbE to 1 GigE network environment .
  • Designed, implemented multi-ISP Links, provided Load Balancing and redundant WAN access.
  • Designed, implemented, developed and maintained Internet User Authentication and Billing Gateway with Linux, Iptables, Open LDAP and PHP/Perl scripts.
  • Designed layout of new Data Center, successfully implemented Data Center migration with project management method.
  • Designed, developed and implemented network-wide resource monitoring and graphing system with MRTG and PHP scripts.
  • Designed, implemented Data Center Virtualization with Intel VT, Storage Array, InfiniBand network, iSCSI, LVM, Xen and CentOS.
  • Designed, implemented, maintained Inventory Management and Online Order System.
  • Planed, designed, developed and implemented Content Management System for Homepage of Institute of Chemistry, CAS with ASP scripts and MS SQL Server. (http://www.iccas.ac.cn/)
  • Designed, implemented, maintained collaboration and mail system with Zimbra Collaboration Suite.
  • Designed, implemented, maintained Chemistry Digital Library, Built an intranet search engine with Locust/asearchd, realized knowledge search for institute.
  • Planed, designed, developed and implemented Messaging and Collaboration System for faculty groups with Microsoft SharePoint Services/Portal.
  • Designed, implemented and maintained Active Directory for all management offices.
  • Planed, implemented, maintained Academic Resource Planning for Institute System with Oracle ERP/Portal/ IAS/RAC/SSO. (http://www.arp.cn/)
  • Designed, set up, and maintained several groups Linux Cluster for theoretical and computational chemistry.

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Oct 2001 - April 2002
Internship

The Chemical Information Network, Beijing - http://www.chinweb.com/

ChINweb.com is a widely recognized chemical site in China, also Chinese National Science Digital Library. My major work is the migration of database platform; this is also the project for my bachelor's degree.
  • Designed, implemented website data conversion from Sybase to MySQL with the Data Pipeline of Powerbuilder
  • Developed, Modified SQL codes of the client software with Delphi
  • Designed the new version homepage for ChINweb.com with Dreamweaver and Fireworks

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2005 - 2007
Chief Technical Officer

Beijing Titan Grid Technology Co., Ltd.

I founded this company with my 3 friends at 2005 in Beijing. Our company aimed at High Performance Computing in the field of scientific computing. According to scientists' demands, we built all kinds of Linux Clusters, and sold them to Universities, Institutes and National Laboratories in China. I provided technical support for our users, help them solve many computing problems, and established a good relationship with them.

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2004 - 2007
Systems Administrator / Tech Support

Beijing Jinruijia Investment Consulting Ltd.

5able.com sells the life-insurance. It is my part-time job to maintain this website. I am responsible for all technical problems, and deal with all the network intrusions.

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CERTIFICATIONS/TRAINING

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  • Microsoft Certified System Engineer (MCSE)
  • Microsoft Certified Database Administrators (MCDBA)
  • Cisco Certified Network Associate (CCNA) Training Courses, 2002
  • Cisco Certified Network Professional (CCNP) Training Courses, 2002
  • Oracle 9i DBA/OCP Training Courses, 2005

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EDUCATION

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2005 - 2007

Graduate School of the Chinese Academy of Sciences

Master

  • IT Project Management

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1998 - 2002

Beijing Institute of Technology

Bachelor

  • Mechanical and Electrical Engineering

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ARTICLES/PAPERS

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  • Project management information system in the scientific research
  • ChINweb.com database migrate with open source database
  • Three-photon absorption in anthracene-porphyrin-anthracene triads: A quantum-chemical study - J. Chem. Phys., 2004
  • Field Effect on the Singlet and Triplet Exciton Formation in Organic/Polymeric Light-Emitting Diodes - J. Phys. Chem. B., 2004

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