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Walter W. | Elance
 
176985602337900
Last Sign-in: Feb 23, 2015

Walter W.

Unix/DB programmer/admin
   Venezuela
  |   Caracas, Distrito Federal

Overview

Minimum Hourly Rate $35

Languages: C/C++, Java, UNIX scripting (sh, awk, Perl, tcl/tk)

O.S. Internals: UNIX (SysV, Solaris, Linux, True64, AIX, DG-UX).

WWW: iPlanet: Tuning/Admin/Internals, Apache: Tuning/Admin/Internals. Tomcat-Axis: Tuning/Admin/Internals. Plugin and Robots construction. HTTP/HTML/SOAP/XML parser construction from the RFCs. SSL integration and implementation. Web scripting.

RDBMSs: SYBASE: SQL Server, OpenClient DB-Library/C, Transact-SQL, ISQL. ORACLE: OCI, PL/SQL, User Exits at the engine level, Tuning & Admin. OpenAPI.

Networks and...

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Feb 16, 2014|Other IT & Programming|$0|Completed
Jun 15, 2011|Other IT & Programming|$0|Completed

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Skills (10)

Tested
C
Programming with C Test
My Score
avg
TCP/IP
TCP/IP Test
My Score
avg
Unix
Unix Test
My Score
avg
Oracle Administration
Java
Solaris Administration
SQL Programming
Linux System Administration
Firewall
VPN

Service Description

Several years of experience evolving into a proficient programmer and a think-ahead architect. Has been involved in cutting edge IT projects and successfully competing against big names like IBM, Computer Associates and Unisys. Some of those projects include:

Transaction Monitor design and construction
Compiler design and construction
Transparent TCP/IP sockets over SNA transport networks
Multitasked preemptive kernel for the x86 architecture
Multiplexing of several undisturbed processes over a single TTY
SCADA scheduler design and construction

The result of these challenging work was several times awarded with a job offering from the competition. It has been combined and in association with more mundane activities like:

Web programming, admin and internals
Database programming, admin and internals
Platform PCI certification
Hardening and security at the programming and admin level
Administration of Unix alike platforms
Switch programming at a PSTN
IVR/ACD/CTI programming
Some MS Windows admin and internals programming
Microcontroller programming
Coaching and mentoring

Being educated in the old school were performance was prime, and being trained by the tough competition against big brands, I had to make the transition by myself to technologies starting from OOP to IT approaches, which now are commonplace, like: RUP, Design Patterns and Agile Software Development.

Apart from the expertise mentioned above the specific hands-on experience and skills I offer as a...

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Employment

Ingedigit C.A.
Communications and Security Specialist
2000 - Present
Oracle migration/hardening and Solaris-Linux Hardening to be PCI compliant. Design/implementation of the scheduler for the "SCADA nacional" (PDVSA). Design and implementation of a middleware...
Unisys de Venezuela C.A.
Architecture Specialist
1998 - 2000
Switch programming to connect an IVR/UVMS/ACD system to the CANTV PSTN. Construction of a 3270 engine allowing concurrent access to CANTV legacy systems in non-invasive fashion and providing a...
Computer Associates de Venezuela C.A
Systems Engineer
1997 - 1998
Technical support to data base products over midrange platforms. Support of products running above SNA networks. Object Oriented consultant. Integrator consultant.
Banco UniĆ³n C.A.
Systems Programmer
1995 - 1997
In charge of 32+ AIX-RS/6000 machines running above an SNA-TCP/IP network. To optimize the usage of this platform it was necessary the design and implementation of several systems as described....

Keywords

C/C++
Unix
guru
admin
script
My Snapshot
Elance Level
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  • 12 months
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Identity
Username
waws
Type
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Member Since
April 2009
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Walter W. | Elance

Walter W.