Mark Zeman
Details
Computer Science
University of Illinois Chicago
Mandarin Training Center
National Taiwan Normal University
Chinese Mandarin
USAF Linguist (TS/SCI)
Defense Language Institute Foreign Language Center
Linux Systems Support
Akamai administrator
Manage mission critical web Infrastructure for a federally regulated commodities & futures exchange
Coordinate with digital marketing content & dev teams
Troubleshoot most known and some new issues, determine root cause
Managed distributed computing architecture applications and infrastructure components (web and application servers, storage, networking, load balancing, databases ), h/w platforms and resources
Configure systems and modify settings to ensure proper functioning; Provide routine maintenance of system.
2016 : Present
CME Group
Global Information Security Consultant
IT Consultants to large and small businesses, managed a small group of developers and network administrators. Developed, deployed and maintained complete custom web, security, manufacturing and accounting applications, managed sales and administration. Introduced and developed open source infrastructure, mainly using Linux, for several clients, saving money while increasing security and reliability.
Accomplishments :
Multiple Clients 1997-Present
- Installed/secured/maintained custom Linux systems as web, Samba, and mail servers, running multiple industry-specific applications for clients in the financial, manufacturing, and online media fields. Also responsible for several Windows networks running stand-alone or in virtual environments
Midsize Plastics Manufacturer 1988-2014
- Developed a custom MRP scheduling application for the plastics industry, running in xBASE (dBASE/Foxpro/Clipper) on a Novell network. Over 20 years, this system was modernized by migrating to DOSEMU on Linux, with Samba and ssh terminal access. Integrated Julian date calculations for accuracy down to the minute. Currently working on SQL connectivity.
Multiple Manufacturing Clients 1990-2016
- Wrote extensive modifications and extensions to accounting applications for multiple clients running SBT Accounting/ACCPAC/Sage and other ERP systems, and managed the network infrastructure and integration with other systems and platforms
1998 :
Cerebral Software, Inc
President
Developed and sold MES & ERP systems for plastics, titanium tool and printing industries. Provided web application services, security and infrastructure to customers and integration to their vendor partners.
1998 : 2014
Chrysonite Development Corp
Partner
Developed a secure transaction transfer application for Citigroup that sent ~US$1 billion per day of scheduled hourly inbound Federal Reserve wire transfers and ATM transactions from Chicago to New York. Used Connect : Direct, an industry-specific application with its own scripting language, along with several command line tricks on a Windows server. This connected to the remote MVS system and conditionally launched procedures. Installed and configured Nagios monitoring of these and other critical systems
1999 : 2012
Citigroup
Consultant
Ran a department of 9 developers and technicians responsible for development, maintenance and uptime of a large daily business news website serving 70,000 readers worldwide.
Managed servers, firewalls, routers, global server load balancers across two continents, and 70 client workstations and file/print services. Migrated most server and back end functions to a Linux architecture, saving thousands of dollars in licensing fees when new or upgraded applications were needed.
Accomplishments :
Slashed operating costs by moving critical outsourced services to Linux/GPL software. Moved server functions from Shanghai, China and Santa Clara, CA to office space in Chicago for hands-on and cheaper hosting and administration.
Installed web and mail proxy servers in front of a highly visible public website to increase security and access time.
Coordinated deployment of globally load-balanced (GSLB) servers in three worldwide locations to ensure website uptime and fast access.
1999 : 2003
China Online, Inc.
IT Director
Skills
Business Analysis, Business Strategy, CRM, ERP, Integration, Microsoft SQL Server, Networking, Programming, Project Management, Requirements Analysis, Security, Servers, Software Development, Software Project Management, SQL, Start-ups, Strategic Planning, Unix, Vendor Management, Web Services
About
SKILL SUMMARY:
Operating Systems: Linux – Slackware/RHEL/CentOS/Ubuntu/Debian/SuSE, UNIX (System V (Solaris/SCO) & BSD), VMWare/Virtualbox, Amazon EC2/Rackspace/Linode, Android/Arduino, Netware, MacOS(X), Windows 3.1- 2012
*nix Servers: Apache, Sendmail, Bind DNS, DHCP, MySQL, OpenLDAP, Openwebmail, OpenVPN,Samba
*nix Applications: Nagios,GLPI, BackupPC, rsync, Joomla, VNC, Wordpress,Tikiwiki, JIRA, LAMP stack installation , configuration and maintenance
Virtualization: P2V: create dd images, resize with gparted, apply correct drivers, fix init
Networking/Security/Firewalls: Pix/IOS, iptables, snort, squid, IPCop, SonicWall, sshd, ssh tunnels, gpg, routing tables, IPv6 migration
Troubleshooting: Rapidly analyze offline or faulty network or server equipment, check logs and configuration, and apply best practice solution, or solid workaround while fixing things the right way
Hardware: Read schematics, trace circuits, locate faults and expedite repairs
Databases: mySQL, PostgreSQL, MS SQL, Oracle
Languages/Scripting: bash, Python, Perl, PHP, C, C++, Assembly, xBase (FoxPro/Clipper/dBase), Connect:Direct / NDM /4th Dimension/Qt, FORTRAN
Also: Linux/Windows rescue, Backup Exec, arcserve, IIS, Windows registry hacks, hardening
IBM, HP, Dell servers, experienced amateur automotive & motorcycle mechanic, currently learning CAN bus operation and security
Communications: Technobabble interpreter, troubleshooter, expediter with effective written communications, conversant in Mandarin Chinese
Profile Photo
