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Wladimir Espinoza

Data Engineer

Perficient

Technologies

My Portfolio Highlights

My New Project

Analyzing Students' Mental Health

My New Course

Introduction to Python

My New Project

Analyzing Students' Mental Health

Insights artist, painting vivid pictures of knowledge with data as the brush.

My Work

Take a look at my latest work.

course

Introduction to Data Engineering

course

Understanding Data Engineering

course

Introduction to Python

course

Introduction to Data Engineering

My Certifications

These are the industry credentials that I’ve earned.

Other Certificates

Amazon Web Services AWS Certified Solutions Architect

Google Cloud Platform Google Cloud Certified Professional Data Engineer

Cambridge University First Certificate in English (FCE)

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to Python
Introduction to SQL
Intermediate SQL
Joining Data in SQL

My Work Experience

Where I've interned and worked during my career.

Perficient Latin America | Apr 2022 - Present

Data Engineer

- Desarrollo y revision de Procedimientos Almacenados cross-platform (MS SQL, Oracle) y cross-environment para solucionar defectos en reporteria y su performance. - Debugging y desarrollo de Features para Proyecto de Loyalty. - Analisis de Cubos (OLAP) para revisar consistencia de fuentes de datos y precisón y cálculos. - Desarrollé un script de automatización para deployment de reportes SSRS y PowerBI multi-ambiente.
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Evalueserve | Apr 2021 - Apr 2022

Practice Expert (Manager)

- Lead a Synthetic Data Bank's Database project using Python, including transactions for Risk Strategy Modeling and Alerting. Accounts' segmentation and transaction behavior were based on real-world data, as well as the demographic reality of Branches, Clients, and Employees. Modeled and designed the Database schema, relationships, and data types, together with implementing and integrating it with a Django application. - Developed alerting strategies for Conduct Risk detection in one of the Big Four banks of the United States, using SQL, SAS, and Teradata. - Participated actively with Data scientists in UAT testings for validating strategies outcomes, increasing their coverages and precision by a 25%, and detecting possible breaches for future auditing. - Contributed actively as Python trainer for peers.

Havas Media Group | Feb 2021 - Apr 2021

Analytics and Measurement Expert

- Lead reports migration from Google’s Data Studio to Power BI, connected to an orchestrated Data Warehouse, for increased performance and stability to dashboard querying and access. - Developed standard automated reports with Power BI and SQL Server to accomplish with Account and Brand manager’s needs in lesser time, changing from 2 weeks to 3 days on average. - Lead collaboration with Account and Brand Managers for auditing and validation of data outcomes. - Developed Reporting and Data Visualization projects. Dashboard and KPI panels developed in Power BI for client management and for tracing KPI accomplishment. - Developed ETL from several sources like Google Analytics, Google Campaign Manager, Facebook Ads, Google DV360, and Microsoft’s SQL Server.

Subsecretaria de Prevision Social, Ministerio del Trabajo | Jun 2014 - Jan 2021

Business Intelligence and Visualization Project Manager

Responsibilities: - Manager of BI and Data Visualization projects, Dashboard and KPI panels developed for internal management and public showcase. - Web Traffic and User Behavior monitoring using Tableau and Power BI. - ETL and Data Blending from several soucers like Google Analytics, MySQL and Microsoft’s SQL Server. - Lead collaboration with Pension’s Research Department, technical areas and users. - Develop Data Visualization projects in Tableau for citizens and students interested in knowing about the national Pension System, Social Insurance Benefits, Pension and Social Benefits from a Gender perspective and General uses for Public Data based on Cross-sectional studies. Main Achievements: - Public Accountability Dashboard for an annual inviting tender that reduced information requests about state’s fund use and distribution. - Public State Social Benefit Visualization with historical data about social benefits and their evolution through time and coverage, oriented for students and journalists.

My Education

Take a look at my formal education

Diploma in Data Science and EngineeringUniversidad de Chile | 2022
Bachelor in Computer ScienceUniversidad Tecnológica de Chile, INACAP | 2014

About Me

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