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$40 USD /timme
Flagga för ARGENTINA
capital federal, argentina
$40 USD /timme
Datum, tid och plats: 10:42 fm
Gick med juni 1, 2012
4 Rekommendationer

David Raul D.

@ddonari

 5,0 (34 omdömen)
7,2
7,2
88%
88%
$40 USD /timme
Flagga för ARGENTINA
capital federal, argentina
$40 USD /timme
98 %
Slutförda jobb
100 %
Inom budget
100 %
Inom tid
15 %
Återanställningsgrad

Full Stack Software Engineer

Hello, my name is David. With a Bachelor’s degree in Computer Science, Ph.D. degree in Real Time Systems, and hands-on experience using languages to create and implement software applications. I would like to highlight that would enable me to contribute to your bottom line are: Highly skilled in designing, and developing software Thorough understanding of data structures and algorithms Knowledgeable of back-end development best practices Hands-on software troubleshooting experience Proven track record of proper documentation for future maintenance and upgrades Language skills Server side: C# - Java - ASP.NET - PHP - ASP.NET MVC - .NET Client side: HTML-5 - jQuery - Javascript - Angular DB skills Microsoft SQL Server - Oracle Cassandra - MongoDB Extras: Bootstrap . Git .REST . Azure . DevExpress . Entity Framework. Linux . AWS . BigData. RabbitMQ
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Portfolio

2683510
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
3273487
Architecture: Linux / Node.js MEAN stack -Mqtt broker data exchange with database. -PUB/SUB Library (mosquito). -Google maps with data item visualization. -User login wit passport (Google, Facebook). -User data with form for approx. 20 data items, persistence in database.
Data Collector from Remote Devices
2767619
Software which converts the stock data into higher intervals such: X second X minute Daily Weekly Monthly Quarterly Yearly based on the various types of inputs and provides various types of outputs.
Stock Market Data Converter
2720424
- Geolocation App for IOS, Adroid - Monitoring Web App - Backend (php,mysql)
Geolocation App
- Geolocation App for IOS, Adroid - Monitoring Web App - Backend (php,mysql)
Geolocation App
2720413
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
2685251
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
2683510
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
1 Input : connection string (ip-username-password) (kept in memory) 2 Buton CONNECT 3 List all database 4-Check box database we want to update 5-Browse button to select .SQL file to execute on all DATABASE check in step 4
C# App which executes script on multiple SQL express DB's
3273487
Architecture: Linux / Node.js MEAN stack -Mqtt broker data exchange with database. -PUB/SUB Library (mosquito). -Google maps with data item visualization. -User login wit passport (Google, Facebook). -User data with form for approx. 20 data items, persistence in database.
Data Collector from Remote Devices
2767619
Software which converts the stock data into higher intervals such: X second X minute Daily Weekly Monthly Quarterly Yearly based on the various types of inputs and provides various types of outputs.
Stock Market Data Converter
2720424
- Geolocation App for IOS, Adroid - Monitoring Web App - Backend (php,mysql)
Geolocation App
- Geolocation App for IOS, Adroid - Monitoring Web App - Backend (php,mysql)
Geolocation App
2720413
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
A bank reconciliation is a process performed by a company to ensure that the company's records (check register, general ledger account, balance sheet, etc.) are correct and that the bank's records are also correct. Tools /////////// ASP.NET DevExpress SQL SERVER Entity Framework
Sistema de Conciliaciones Bancarias (ASP.NET / DevExpress )
2685251
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System
Includes: /Reservations /Rooms /Clients /Companions /Taxes Implemented with ASP.NET - SQL SERVER - Javascript - DevExpress
Cloud Hotel Reservation System

Recensioner

Ändringar sparade
Visar 1 - 5 av 34 omdömen
 Filtrera omdömen efter:
5,0
$16 000,00 ARS
Project for David Raul D.
Todo excelente!
ASP
SQL
HTML
jQuery / Prototype
+1 till
Q
Flagga för Matias M.
@qwpolazm
•
sex år sedan
5,0
$760,38 USD
Converting graphical designs into HTML
It really was a pleasure for me to get David to know. I'll definitely will work together with him. Great communication, great flexibility, great knowledge.
HTML
ASP.NET
Använd avatar
Flagga för Christian G.
@chrris
•
sju år sedan
5,0
$4 274,80 USD
Hire a Back End Developer
Job done as expected.
.NET
Cloud Computing
C# Programming
Software Architecture
JSON
Använd avatar
Flagga för Dmitry M.
@dmnushkin
•
sju år sedan
5,0
$1 041,50 USD
Create advanced production order system with bill of materials (ERP).
Fluent work
S
Flagga för Sven D.
@sven0074
•
sju år sedan
4,4
$1 371,56 USD
Hourly Work on My Client's Code Base
David was very responsive and was able to do everything I asked him to do.
Software Architecture
ASP.NET
Använd avatar
Flagga för Rob B.
@rblackin
•
sju år sedan

Erfarenhet

Senior BackEnd Software Engineer

Grower Ideas
okt. 2013 - dec. 2016 (3 år, 2 månader)
Working with Backend Services which support a variety of front end websites, potentially developed with different technologies.

Utbildning

Phd

Argentina 2006 - 2011
(5 år)

Computer Engineer

Universidad Nacional del Sur, Argentina 2000 - 2006
(6 år)

Kvalifikationer

Doctorate Scholarship

CONICET
2011
Thesis Topic: "Study and Design of Real-Time Operating Systems for Embedded Systems Microprocessors"

Publikationer

Scheduler Implementation for Small Embedded Systems

Scheduler Implementation for Small Embedded Systems
Scheduling techniques for small embedded system. The main contribution of the work is related to the way in which the kernel is organized to schedule and dispatch tasks. This is done based on special data structures that allow a very fast search of the next higher priority task ready to execute. This is achieved without producing a significant increment on the amount of memory required to implement the mechanism and at the same time keeping the footprint smaller than other kernels.

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Certifikat

spanish-1.png Spanish 1 95%
numeracy_1.png Basic Numeracy 1 88%
preferredfreelancer-1.png Preferred Freelancer Program SLA 1 87%
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us_eng_1.png US English 1 85%

Toppkompetenser

Software Architecture 17
PHP 7
C# Programming 6
MySQL 5
IIS 1

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