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C# Programming
MySQL
PHP
Software Architecture
SQL
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$25 USD / hour
Flag of VEFlag of VE
maracaibo,
venezuela
$25 USD / hour
It's currently 9:03 PM here
Joined November 23, 2020
1 Recommendation

Efraín José R.

@niarfedevelop

monthly-level-three.svg
4.9 (11 reviews)
4.9 (11 reviews)
3.8
3.8
$25 USD / hour
Flag of VEFlag of VE
maracaibo,
venezuela
$25 USD / hour
92%
Jobs Completed
100%
On Budget
100%
On Time
11%
Repeat Hire Rate

EXPERT IN SOFTWARE DEVELOPMENT / BACKEND /DBA

Database modeling and creation specialist, RestFul Api creation, SQL query optimization, management of NoSql data managers. Expert in SQL, PL/SQL. Database developer. Expert in data replication MYSQL SERVER and MARIADB SERVER, master-master, master-slave and Multi-source replication (several masters a single slave). Extensive Experience Development and Maintenance of Desktop Systems (PRODUCTION, INVENTORY, PURCHASES, SALES, PAYMENTS, ACCOUNTING, BANK CONCILIATION, PROCESS CALCULATION OF PRICES BASED ON COST MANAGEMENT, AMONG OTHERS). Extensive Experience Development and Maintenance of Websites. Expert in Point of Sale System. Experience in implementation of fiscal printers (Bixolon Srp 270, Bixolon Srp 350, Bixolon Srp 812, Tally, Okidata, among other printer models) More than 10 years of experience working with ERP (Example : ERP Adaptapro Venezuela) Expert in Unicenta Pos, Odoo System, Dolibarr, I provide the support service for new adaptations, implementations, maintenance, among others. Payroll system experience, fingerprint capture system. Expert in creating all kinds of reports with CRYSTAL REPORT, PHP, JAVA, among others. JAVA PHP JSP PYTHON (PyChart, Qt Designer) NODEJS REACT C# VISUAL BASIC 6.0 DELFI VB.NET HTML XML JAVASCRIT BOOTSTRAP CSS MS ACCESS MYSQL SERVER POSTGRESQL MARIADB SQL SERVER ORACLE MONGODB SQL, PL/SQL CRYSTAL REPORT UML WORDPRESS
Freelancer
MySQL Developers
Venezuela

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Portfolio Items

Word file generation with Python, with the use of header, footer, paragraphs, include image and create tables and nested tables.
Generate Work File With Python
Python application with MariaDB, using PyChart, PyQt5, Qt Designer and MariaDB. Use of Drag and Drop with multiple rows in QTableWidget.
Python (PyQt5) application with MariaDB (Drag and Drop)
Crud with Python (PyChart) Using Tkinder and remote Mariadb Server via SSHH tunnel.
Crud with Python (PyChart) Using Tkinter
Improvements to the point of sale system.
Point of Sale System
Creation of Shopping Cart with PHP, BOOTSTRAP, HTML, CSS, PAYPAL API and MYSQL.
Creation of Shopping Cart with PHP, BOOTSTRAP, HTML
Creation of Shopping Cart with PHP, BOOTSTRAP, HTML, CSS, PAYPAL API and MYSQL.
Creation of Shopping Cart with PHP, BOOTSTRAP, HTML
Creation of Shopping Cart with PHP, BOOTSTRAP, HTML, CSS, PAYPAL API and MYSQL.
Creation of Shopping Cart with PHP, BOOTSTRAP, HTML
Creation of various types of reports for distribution company shows some of the reports created.
Creating Reports with Crystal Report
Creation of various types of reports for distribution company shows some of the reports created.
Creating Reports with Crystal Report

Reviews

Changes saved
Showing 1 - 5 out of 11 reviews
Filter reviews by:
1.0
$25.00 USD
Es Irresponsable y poco profesional, la verdad dudo de sus conocimientos, llevaba 4 días con mi proyecto que le compartí y solo me daba el pretexto que en un momento retomaba mi proyecto. un cambio no tan difícil que supuestamente ya lo tenía identificado. por cierto, dicho proyecto que le compartí, me costó plata, no fue gratis. y a él le quedó gratis. no me entregó ningun cambio, tuve que cancelar el proyecto por falta de compromiso con el programador, así que yo no obtuve absolutamente nada y el se quedó con un sistema completo de inventario y facturación que fue de paga.
PHP
MySQL
Bootstrap
Laravel
CSS3
C
Flag of NI Carlos M. @cmaradiagap
3 days ago
5.0
$100.00 USD
Buen trabajo, profesional, flexible, organizado a tiempo.
PHP
SQL
C# Programming
Software Architecture
MySQL
E
Flag of CO Elibardo R. @Elirios12
2 months ago
5.0
$30.00 CAD
GREAT work, finish on time with all the details fulfilled, highly recommend this freelancer
Python
Software Architecture
T
Flag of CA Xiao C. @tearabbit317
2 months ago
5.0
$80.00 CAD
very professional, responsive. highly skilled software developer. highly recommened. I enjoyed working with this freelancer.
Java
SQL
C# Programming
Software Architecture
MySQL
Hire me
T
Flag of CA Xiao C. @tearabbit317
3 months ago
5.0
€16.00 EUR
todo ok para el trabajo encargado
PHP
MySQL
L
Flag of ES Luis Manuel H. @lmhalcon
3 months ago

Experience

Backend / DBA / Consultant Adaptapro ERP Open Source

Personal
Jan 2017 - Present
Actualmente trabajo independiente emprendiendo con mi propia empresa de sistemas.

Backend / DBA

TECNOLOGIA ADELFUS, C.A.
Mar 2016 - Aug 2017 (1 year, 5 months)
Database modeling (mysql workbench), database implementation (relational and non-relational, creation of RestFul and Soap services api, use of StrongLoop framework (NodeJS), django (Python), non-SQL data managers: ( MongoDB, Redis) and relational: (Mysql Server, PostgreSQL, and SQL Server) Management of repositories with GIT, use of Scrum methodology (Target Process).

Adaptapro ERP Consultant

Independent
Dec 2014 - Feb 2016 (1 year, 2 months)
Customer Service Provider with ERP Adaptapro. Development, implementation and improvement projects for clients.

Education

Informatics Engineer

Universidad del Zulia, Venezuela 2013 - 2016
(3 years)

Higher University Technician

Universidad del Zulia, Venezuela 2006 - 2009
(3 years)

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Top Skills

MySQL
10
SQL
5
Software Architecture
5
C# Programming
4
PHP
3

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