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Sergio A.

@SergioAlfaroV

annual-level-three.svgpreferred-freelancer-v3.svg
4,9
31
6,1
6,1
97%

Microsoft Certified Data Solutions Expert, MBA

$40 USD/oră
・
Steagul
Peru (10:56 p.m.)
・
S-a alăturat pe iunie 22, 2015
$40 USD/oră
・
15+ years of experience in Data Engineering, BI, SQL, reports/dashboards design and construction, ETL/ELT, Data Warehousing, Data Analytics, database administration/tuning/optimization, and related work. 7+ years of experience working remotely on project all around the world. Native Spanish speaker, and near-native English speaker, located in the American Central Timezone (GMT -05). Ideal for near-shore projects requiring constant communication during office hours. TECH STACK =========== MS SQL SERVER: - Transact-SQL - Administration - Tuning MS SQL SERVER BI ON PREM STACK: - Power BI: DAX, M - Reporting Services - Analysis Services: Tabular (DAX), OLAP(MDX) - Integration Services AZURE CLOUD DATA STACK: - Azure Data Factory - Synapse - Databricks - Data Lake SCRIPTING: - Python - VB.NET - C# - PowerShell OTHERS: - Snowflake - MS Excel: Formulas, VBA (Macros) - QlikView - Tableau - Oracle (PL/SQL) - MySQL - PostgreSQL - UNIX - XML - YML - JSON - Git - SCRUM ** Adjustable rates according to work complexity, urgency, and/or project size. **
Verificări
La timp
86 %
Conform bugetului
97 %
Rata de acceptare
100 %
Rata de angajare repetată
13 %
Freelancer SQL Developers Peru
Vezi toate opțiunile pentru SQL Developers din Peru

Portfoliu

Portfoliu

8385491
This is a Time Tracker Application to be used by supervisor of a wood processing plant to register labor and duration per employee, work order, machine and type of task.
Time Tracker App (VB.Net + SQL)
This is a Time Tracker Application to be used by supervisor of a wood processing plant to register labor and duration per employee, work order, machine and type of task.
Time Tracker App (VB.Net + SQL)
7273365
This is an app for the user to import PDF filled forms to SQL Server. The main importing logic was written on the SQL procedure, while other validation rules was coded on the VB.NET app. The core functionality detected the fillable fields on the PDF file and converted their contents to a XML file. Then, the XML data structure is pulled to a table in SQL Server.
App to import PDF forms (VB.NET+SQL)
This is an app for the user to import PDF filled forms to SQL Server. The main importing logic was written on the SQL procedure, while other validation rules was coded on the VB.NET app. The core functionality detected the fillable fields on the PDF file and converted their contents to a XML file. Then, the XML data structure is pulled to a table in SQL Server.
App to import PDF forms (VB.NET+SQL)
7272976
This is a suicide prevalence world wide map per Country that I made using Power BI. I used the Filled Map visual that pulls the world wide map from Bing, suicide prevalence data from the WHO, and Country ISO codes (2 and 3 letters) and names from a Wikipedia page.
Suicide prevalence map per Country
7272697
This is my MCSE (Microsoft Certified Solutions Expert) Data Management and Analytics Certificate, obtained in November 2019.
MCSE Data Mgmt and Analytics Certif
6453114
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
5898774
This is a T-SQL Create Database Trigger to auto-create User Based on Login, which is basically a server level trigger that executes when a database is created. What it does is create a user within the newly created database, based on a previously created login, grant needed permissions, and associate with the mentioned login. Also the trigger does this for all the databases where this user hasn't been created before.
T-SQL Complex Server Level Trigger
8385491
This is a Time Tracker Application to be used by supervisor of a wood processing plant to register labor and duration per employee, work order, machine and type of task.
Time Tracker App (VB.Net + SQL)
This is a Time Tracker Application to be used by supervisor of a wood processing plant to register labor and duration per employee, work order, machine and type of task.
Time Tracker App (VB.Net + SQL)
7273365
This is an app for the user to import PDF filled forms to SQL Server. The main importing logic was written on the SQL procedure, while other validation rules was coded on the VB.NET app. The core functionality detected the fillable fields on the PDF file and converted their contents to a XML file. Then, the XML data structure is pulled to a table in SQL Server.
App to import PDF forms (VB.NET+SQL)
This is an app for the user to import PDF filled forms to SQL Server. The main importing logic was written on the SQL procedure, while other validation rules was coded on the VB.NET app. The core functionality detected the fillable fields on the PDF file and converted their contents to a XML file. Then, the XML data structure is pulled to a table in SQL Server.
App to import PDF forms (VB.NET+SQL)
7272976
This is a suicide prevalence world wide map per Country that I made using Power BI. I used the Filled Map visual that pulls the world wide map from Bing, suicide prevalence data from the WHO, and Country ISO codes (2 and 3 letters) and names from a Wikipedia page.
Suicide prevalence map per Country
7272697
This is my MCSE (Microsoft Certified Solutions Expert) Data Management and Analytics Certificate, obtained in November 2019.
MCSE Data Mgmt and Analytics Certif
6453114
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
This is a Traffic Incidents Dashboard I made using Power BI and SQL Server. I built the SQL database from scratch based on a series of data sources, flat files and APIs, and also the Power BI dashboard.
Power BI Traffic Incidents Dashboard
5898774
This is a T-SQL Create Database Trigger to auto-create User Based on Login, which is basically a server level trigger that executes when a database is created. What it does is create a user within the newly created database, based on a previously created login, grant needed permissions, and associate with the mentioned login. Also the trigger does this for all the databases where this user hasn't been created before.
T-SQL Complex Server Level Trigger
Modificările au fost salvate
4.9 · 31 Reviews
Recenzii
S
DTSX Package. • £50 GBP
A true pro. Really new his stuff. Very quick.
Richard L.
@Slixter
•
Steagul
Stourbridge, United Kingdom
•
2 ani în urmă
Trimite
N
SQL Programmer/Data Warehouse Cube • $2.650 USD
Wonderful communication and work -
Dominick B.
@nbarbarise2020
•
Steagul
Clifton, United States
•
4 ani în urmă
Trimite
Avatarul utilizatorului
Crear presentación de Power Bi - Fecha límite 14/08 • $50 USD
Sergio cumplió con mis expectativas. Estubo muy atento, enviandome en todo momento los avances de mi proyecto. Gran comprensión de las consignas y feedback. Lo recomiendo y seguramente volveré a solicitar sus servicios!!! Muchas Gracias Sergio!!
Julieta Marina F.
@AromasMgZN
•
Steagul
Ingeniero Maschwitz, Argentina
•
4 ani în urmă
Trimite
T
Rolling Balance Sheet Power BI • $300 USD
Performed work very quickly, very easy to work with.
Tom C.
@tcasekpi
•
Steagul
Laguna niguel, United States
•
4 ani în urmă
Trimite
I
Project 26553040 has been deleted • $50 USD
i liked very much to work with him
Ilan T.
@ilantep
•
Steagul
Tel Aviv, Israel
•
5 ani în urmă
Trimite
Experiență
Viewpoint/SSRS Specialist
apr., 2016 – Prezent
•
8 ani, 9 luni
BairesDev | Client: Kimbel Mechanical Systems
apr., 2016 - Prezent
•
8 ani, 9 luni
Telecommuting (home/office) work. Design and development of accounting and financial reports, using Viewpoint ERP, SQL Server 2014 (T-SQL) and SSRS. Work entirely in English (since the client is based in Arkansas, USA). Major Projects:  - Daily Dashboard (with daily indicators, for the CEO) - Profit and Loss: Cost of Construction (for the CFO) - Monthly Reports (battery of monthly reports, for several users) - Daily Invoices (daily subscription - invoices w/attachments, for several users)
apr., 2016 – Prezent
•
8 ani, 9 luni
Qlikview Specialist
ian., 2013 – Prezent
•
12 ani
Cerámica San Lorenzo
ian., 2013 - Prezent
•
12 ani
Long time on-demand freelancer - with approximately 500 work hours through more than 4 years. Analysis, design, development and implementation of Sales, Logistics and Marketing dashboards (customer segmentation matrix) using SQL Server and Qlikview.
ian., 2013 – Prezent
•
12 ani
Business Intelligence Consultant
ian., 2016 - sept., 2016
•
8 luni
MDP Consulting | Client: Ferreyros
ian., 2016 - sept., 2016
•
8 luni
• Requirement identification, development and deployment of Fill Rate Indicators Datamart, for Logistics and Grand Mining (AS/400, SQL Server (T-SQL), DataStage, Cognos). • Improvements in Audit/FIU reports (Cognos). • Financial Consolidation project (MS Excel, , SSIS, T-SQL).
ian., 2016 - sept., 2016
•
8 luni
Educație
Business Internationalization Course, ICEX
2015 - 2015
Steagul
Spain
2015 - 2015
Universidad ESAN
2013 - 2015
•
2 ani
MBA
Steagul
Peru
2013 - 2015
•
2 ani
Universidad Peruana de Ciencias Aplicadas
2012 - 2012
Business Intelligence and Strategic Information Management
Steagul
Peru
2012 - 2012
Calificări
MCSE: Microsoft Certified Solutions Expert: Data Management and Analytics
2019
Microsoft
MCSE: Microsoft Certified Solutions Expert: Data Management and Analytics
2019
First Certificate in English
2011
University of Cambridge
Certificate that accredits proficiency on English language: reading, writing, speaking and listening.
2011
MCSA: Microsoft Certified Solutions Associate: SQL Server 2014
2017
Microsoft
This certificate proves my knowledge and proficiency on Microsoft SQL Server 2014.
2017
Certificări
Spanish to English Translation
Spanish to English Translation
US English - Level 1
US English
SQL - Level 1
SQL
P
Preferred Freelancer Program SLA
OracleSQL - Level 1
OracleSQL
US English - Level 3
US English
Basic Numeracy - Level 1
Basic Numeracy
Data Entry
Data Entry
MySQL - Level 1
MySQL
C# Programming - Level 1
C# Programming
US English - Level 2
US English
SQL Server - Level 1
SQL Server
SQL - Level 3
SQL
SQL Server - Level 2
SQL Server
SQL - Level 2
SQL
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