Profile image of DenKar
Flag of Colombia Medellin, Colombia
Member since March 19, 2005
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A very professional systems engineer with over 15 years of experience in software development. Good researcher, fast learner and excellent communicator. Capable of keeping focus on complex jobs, work under pressure, deliver on time and under budget. Skilled in a wide variety of application types, ranging from numerical processing to controlling external devices. Capable also of starting a completely new project in many areas beyond my current knowledge. With love for non-conventional or alternative approaches, always wanting to design the most effective and optimal way to solve a problem. I take the challenge where others stay away Programming languages proficiency: * C/C++ (GCC, Visual C++) * BASIC (Visual Basic, VBScript) * ECMAScript (JavaScript, Google Apps Script) * Pascal (Delphi, Turbo Pascal) * XBase (Foxpro, Clipper) * Assembler (i80x86, m68K, MIPS32) * SQL Detailed list of Specialties: * Multithreaded low-level FTP/HTTP Up/downloaders * Reverse engineering, Packets / Protocol analysis, Application cracking * Databases synchronization using batch processes, stored procedures, triggers or file hooks. - Relational: MSSQL, MSAccess - CMS: ACT!, GoldMine - Vertical: Point, QuickBooks - Other: text/XLS/XML solutions * External devices control with parallel port or special hardware like i8255 I/O cards * Web scraping/harvesting & automation Scraped/automated sites: Dell Outlet, Google Adwords, Google Books, CraigsList, Amazon, Pornportal network, Community Forums (IPS, PB, SMF, etc.), BBB, Linkedin * Automation/Anonymizer APIs - Death-by-captcha - Crawlera - Proxycrawl * Google Apps automation (Sheets, Calendar, etc.) * Custom application/protocol development over TCP/IP * Windows telephony (by TAPI or raw AT commands) - Dialers - Answering/recording machines - Automated DTMF menus * 3rd-party API wrappers (both plain and OLE) * Contact lists importers/synchronizers * ActiveX controls & libraries development * XML parsing (using MSXML 2/3/4, libXML, libExpat, etc.) * Serial communications (using DZCOMM in DOS or Windows Kernel API subset) * HTML code generators * GoldMine automation & addins development * ACT! automation & addins development * Outlook and Excel automation * E-mailers (POP3, SMTP) * WebDav/WebFolders clients development (using libNeon) * Windows Multimedia API (Mixer & WAVE) * Windows filesystem & Registry monitoring * Web applications/services interfacing (SOAP, REST, JSON, XML-RPC) * Instant messaging platforms - Slack API - Telegram Bot API * e-commerce APIs - e-Bay Trading and Shopping API - Magento Web API - BigCommerce desktop interface - Amazon MWS
$50 USD/hr
99 reviews
  • 96%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 39%Repeat Hire Rate

Portfolio Items

Recent Reviews


Contract developer

Jan 2008 - Apr 2008 (3 months)

Worked on the development and optimization of modules in the project ProFlight 2000 Emulator.

Contract developer

Dec 2006 - Mar 2007 (3 months)

Responsible for the design and development of the LA Local database synchronization application.

Contract developer

Apr 2006

In charge of the development and maintenance of an undisclosed project, as well as the configuration and administration of the underlying dedicated server and required software tools.


B.S. in Systems Engineering.

1992 - 1999 (7 years)