rsiegler [AT] rsiegler [DOT] org
Skokie, IL USA
DevOps Specialist February 2012 to Present
National Association of REALTORS® - Chicago, IL
Bridging the disciplines of IT operations and application development for NAR’s Infrastructure and Application Development Groups .
Architecture, migrations, deployments, application monitoring on VMware virtual machines and servers running IBM WebSphere, VMware tc Server with vFabric Hyperic, Redhat Tomcat, Oracle DBMS, LogRhythm, Zabbix with custom checks and discovery, Nagios, Jenkins, Bamboo, Subversion, Git on various OS including SuSE Linux Enterprise Server for VMware(SLES), RedHat Enterprise Linux (RHEL), Ubuntu Server, Debian GNU/Linux, FreeBSD, OpenBSD, AIX.
ITS Team responsibilities for Level I Merchant PCI compliance of e-commerce system involved creation of policy, procedures, and building new virtual finance systems in VMWare.
Technologies include WebSphere, TC Server, LogRhythm, Infoblox grid including API, Akamai DNS migration, bind9, F5 BigIP with ASM, Oracle DBMS, PostgreSQL, Postfix, MySQL, Java Server EE/JVM/Java/Jython/JRuby, Ruby, Perl, Python, C/C++, Bash shell and Bourne shell scripting.
Unix / Linux Engineer November 2004 to February
SSI - Northbrook IL
Pre-sales engineering and systems architecture, on-site implementation, migrations to x86 and Itanium2 SAN-based virtualization, clustering and migration solutions for clients including a Healthcare Practice Management provider, City of Chicago departments, Chicago Public Library, Cook County, McHenry County, State of Illinois.
Software development of e-commerce and medical billing applications in PHP 5 (object oriented) and Adobe Flex (MXML) with Postgresql DBMS backend utilizing web frameworks including Symfony.
Project scheduling and estimates, white papers, configuration, and documentation for multi-tier and clustered data center contracts.
Internal FreePBX / Asterisk Deployment and Customization with Cisco SIP Phones (7960, 7961, 7940) and Power over Ethernet.
Internal deployment and Customization of Krytronic ClickCartPro based quotation system and wrote bulk loading system for efficient product configurator production.
Roles: Liaison to client management and IT departments, project scheduling and estimating, technology support to sales department. Systems Architect.
Technologies: VMWare ESX; Veritas Foundation Suite, Legato, GNU / Linux; Debian Linux;Ubuntu; Red Hat Linux; SuSE Linux; CentOS Linux; Arch Linux; HP/UX; Solaris; Apache; PHP; Ruby / Rails; C / C++; Java / J2EE; Oracle RAC; Hitachi Thunder; HP EVA and EMC Clariion SAN disk arrays; Brocade and McData Switches, Cisco switches and routers.
- Project Scheduler February to October 2004
Atlantic Union Resources at Palisades Nuclear Power Plant - Covert, MI
Pre-outage and refueling outage scheduling of construction activities including flow accelerated corrosion (FAC) and in service inspection (ISI). Scheduling of trades including scaffolding carpenters, insulators and asbetos abaters, pipefitters, iron workers, electricians, machinists, painters, heavy equipment operators, and radiation safety technicians.
Customization of Open Plan and integration with mainframe AMMS system, Microsoft Access and Excel.
Roles: Liason to plant management and scheduling department; construction management and supervisors; estimators and schedulers.
Technologies: Open Plan, Primavera, Ruby and OLE.
of three owners / Entrepreneurs April 2002 to January
MailMediaOne – Rockford, IL and Boston, MA
Design of multi-tiered modular Customer Relationship Management system. Beta tests of system with prospects and investors.
Roles: inventor, software engineer, systems architect.
Technologies: Java / J2EE, Tomcat, Perl 5.5, Red Hat Linux, Microsoft Project
of Advanced Technology October 2000 to April
yesmail – Chicago, IL
Managed developers and contractors to engineer CRM systems requiring one tenth of server count of existing systems, QA tools, operations and management modules.
Roles: Manager, software engineer, systems architect.
Technologies: Solaris, GNU / Linux, Java / J2EE, Oracle, MS-SQL Server, C / C++, Perl 5.5 , Microsoft Project
Product Research Engineer April 1998 to September
rims, inc. - Naperville, IL
Create new products to replace legacy mainframe and Unix based health insurance claims adjudication software of QicClaim 2. EDI and XML based EDI architectures. Integration of J2EE products with legacy wares. Beta tests with clients of new products in data center. E-commerce XML transaction and database architecture and software engineering.
Roles: Software engineer, systems architect, liaison to client's IT.
Technologies: Java / J2EE, MicroFocus COBOL including objective extensions, QicClaim / 2, rims ECSIF, CORBA, RMI, ANSI X12 837 and 835 transactions, HP/UX, AIX, Red Hat Linux, Windows NT.
Manager / Special Project Manager August 1995 to
Zenith Controls – Chicago, IL
Manage switchgear design and drafting group, head company projects including document management and groupware. Customization of CADD, CAE, CAM and MRP systems. Conducted company wide training in new IT project implementations.
Roles: Manager, systems administrator of CADD / CAE / CAM systems, trainer, programmer
Technologies: Solaris, AutoTrol, Windows NT, AutoCAD, Pro/E, Novell Groupwise, Novell Netware, Microsoft Project
Professional January 1989 to August 1995
Consultant May 1987- January 1989
Fermi National Accelerator Laboratory – Batavia, IL
Administration of VMS and Unix systems, DECnet, TCP/IP networks, customization of CADD, creation of estimating system based on MEANS database, customization of scheduling system and integration with subcontractor's software. Conducted training in engineering and integration tools.
Roles: Programmer, systems administrator, trainer.
Technologies: VMS, Solaris, SunOS, NextStep, IRIX, Windows NT, C, C++, Objective C, Pascal, FORTRAN, AutoCAD, AutoLISP, Open Plan, Primavera Project Planner (P3).
- Dental Practice Automation June 1986 to May
Practice Management, Inc – Downers Grove, IL
Accounting, office management and collections system implementation and automation. Training of office staff in practice management software and computer operations.
Roles: Systems administrator, trainer
Technologies: Novell, Arcnet, Btrieve, COBOL, MS-DOS
in Engineering Physics, 1986
Bob Jones University
Updated 22 November 2023