// Python Developer · Data Science

Hi, I'm
Hernan Mendes

I build solutions for data extraction, ingestion, and analysis with Python.
I specialize in scraping, automation, and reliable pipelines for data and product teams.

01 / about

A bit about me

I'm a Python developer focused on data extraction and use. I've built scrapers at scale within Django environments, automating tasks with Celery and Redis, and integrating web and mobile sources with Selenium and Appium.

I'm interested in data analysis, Big Data, and Machine Learning. I aim to deliver reliable, traceable, and easy-to-operate solutions for product and analytics teams.

Currently open to opportunities in data engineering, scraping, and automation.

location Buenos Aires, AR
experience 3+ years in Python
focus Scraping / Data Pipelines
education B.Sc. in Data Science (UNSAM)
languages Spanish, English (B2)
status ● available

02 / skills

Tech stack

Backend & Scraping

Python Django Scrapy Selenium Appium Celery

Data & Databases

PostgreSQL MongoDB SQLAlchemy Redis Pandas

Cloud & Infra

Google Cloud Docker Terraform Airflow Linux

Geospatial

PostGIS GeoDjango Folium

APIs & Integrations

Twitter API REST Webhooks

Practices

ETL/ELT Data Quality Automation Documentation

03 / projects

Featured projects

01

IoT Data Pipeline with Raspberry Pi

End-to-end IoT data pipeline that collects temperature and humidity data from a DHT11 sensor, stores it in InfluxDB, and visualizes it through Grafana dashboards. Includes scheduled data ingestion and Docker-based services.

Python InfluxDB Grafana Raspberry Pi Docker

02

choreados.com

Argentine open data platform for exploring vehicle thefts and recoveries with clear metrics, official sources, and simple visualizations.

Python TypeScript PostgreSQL FastAPI Next.js Docker Railway

04 / experience

Experience

Aug 2022 — Present

Python Developer

Gregario · Remote (Chile)

Development and maintenance of scrapers in a Django project. Orchestration with Celery and Redis, web and mobile scraping with Selenium/Appium, and storage in PostgreSQL. Integration of flows into Airflow and support for geospatial cases with PostGIS/GeoDjango and Folium.

Django Celery Redis Selenium Appium PostgreSQL Airflow PostGIS GeoDjango Folium
Mar 2022 — Aug 2022

Data Engineer

BB Media · Buenos Aires

Built web scraping solutions for movie and series sites. Collected opinions via Twitter API, did preliminary analysis in Pandas, and stored data in MongoDB.

Python Scrapy Twitter API Pandas MongoDB
Oct 2020 — Mar 2022

RF & Telecommunications Lab Technician

TERALAB SRL · Ituzaingó

RF testing for ENACOM certifications, technical report writing, and HERTZ system management. Coordinated with technical and commercial clients.

RF ENACOM HERTZ Documentation
Mar 2020 — Mar 2022

Teaching Assistant — Computer Science I

UTN FR Haedo

C theory and practical classes, lesson planning, grading, and office hours.

C Teaching Planning Grading
Sep 2018 — Feb 2021

Intern — R&D Embedded Systems

UTN FR Haedo

Built a Python GUI for railway interlocking simulation and designed digital circuits in VHDL for the EDU-CIAA-FPGA.

Python GUI VHDL FPGA
Mar 2019 — Oct 2020

Electronics Lab Technician

Cremonesi Hnos. · Ciudadela

Repair and installation of electronic equipment for automation, maintenance of electrical machines, and component inventory.

Electronics Automation Maintenance Inventory
Aug 2017 — Jan 2018

Intern — Technical Support

Argomys S.A. · Villa Sarmiento

Installation, configuration, and repair of electronic security equipment.

Support Installation Configuration Repair

05 / contact

Let's talk

I'm open to new opportunities in data engineering, scraping, and automation, both freelance and full-time. Or if you just want to chat about tech, feel free to reach out!

Send email →