Hernán Vignolo

Rising Codementor

US$10.00

For every 15 mins

ABOUT ME

Data Engineer

I’m a Data & Analytics Engineer specialized in designing robust data pipelines, efficient ETL processes, and scalable data models using the modern data stack. My experience spans technical leadership, mentorship, and a strong foundation in R&D, built on my background in electrical engineering.

Spanish, English

Brasilia (-03:00)

Joined June 2025

EXPERTISE

6 years experience

5 years experience

5 years experience

4 years experience

3 years experience

4 years experience

2 years experience

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SOCIAL PRESENCE

GitHub

Ortex-Programming-Challenge

Coding challenges required for the Python Developer and Data Engineer job positions.

Python

Marketing-Campaign-Classification

Real case of classification with machine learning. Analysis of real data from telemarketing campaigns of a Portuguese bank.

Jupyter Notebook

EMPLOYMENTS

Data & Analytics Engineer

Emi Labs

2023-08-01-Present

Designed, built, and maintained end-to-end scalable ETL pipelines using Airflow, Airbyte (CDC), dbt, and Redshift on AWS (EKS, Te...

Designed, built, and maintained end-to-end scalable ETL pipelines using Airflow, Airbyte (CDC), dbt, and Redshift on AWS (EKS, Terraform) with Python, SQL, and PostgreSQL
Led migrations to Redshift and Airbyte, plus a major data model refactor from OBTs to dimensional models, providing clean data sets to end users, allowing them to extract key insights
Partnered closely with product and business teams to define key metrics and support decision-making processes
Developed automated monitoring and data tests to ensure data quality and freshness
Provided technical leadership through mentoring and training across teams

Python

SQL

PostgreSQL

Python

SQL

PostgreSQL

Data

Monitoring

Docker

ETL

Mentoring

Amazon Redshift

Kubernetes

Terraform

Data modeling

Airflow

Data Lake

Data warehouse

Data Pipelines

Metabase

DBT

Observability

Analytics engineering

AWS

Client Facing technical leadership

Data & Analytics Engineer

Mutt Data

2022-08-01-2023-08-01

Designed, built, and maintained data pipelines and ETL processes for a wide variety of sources using modern data stack technologi...

Designed, built, and maintained data pipelines and ETL processes for a wide variety of sources using modern data stack technologies like Airbyte (CDC), Airflow, dbt, AWS (EKS, Terraform), and integrating data from multiple APIs into PostgreSQL
Designed and operated data warehouses and lakes focused on scalability, maintainability, and performance
Build and integrate data monitoring, testing, and observability system
Design and implement scalable data models, data warehouses architecting, and data lakes

Python

SQL

PostgreSQL

Python

SQL

PostgreSQL

Data

Monitoring

Docker

ETL

Kubernetes

Terraform

Data modeling

Airflow

Data Lake

Data warehouse

Data Pipelines

Metabase

DBT

Observability

Analytics engineering

AWS

Data & Electromechanical Engineer

Edenor

2012-03-01-2022-06-01

Led R&D on high/medium voltage equipment finite-element modeling and analysis using Python, SQL, and Airflow to integrate dat...

Led R&D on high/medium voltage equipment finite-element modeling and analysis using Python, SQL, and Airflow to integrate data from multiple sources into a PostgreSQL data warehouse
Managed the data warehouse to support advanced modeling and reporting
Quality assurance with factory and lab testing

Python

SQL

PostgreSQL

Python

SQL

PostgreSQL

Data Engineering

Data warehouse

Data Pipelines

Finite Element Analysis

Quality Assurance Specialist

R&d support