gabrieldaes.com / Overview
social@gabrieldaes.com
At a glance
5
Certifications
5
6+
Projects built
6
2
Live deployments
2
PT
Based in Portugal
PT
Data stack — end to end
pipeline.py — gabriel_alves
01
Ingest
REST APIs
CSV / Batch
Paginated I/O
02
Transform
PySpark
Pandas · NumPy
SQL
03
Orchestrate
Apache Airflow
GitHub Actions
Logging
04
ML-Ready
Feature Eng.
Model Eval.
Prediction Svc
05
Deploy
Render
AWS Cognito
WAF
Featured projects
Data Engineering · ELT
World Bank GDP Pipeline
Complete
Paginated REST API → S3 (Hive partitioning) → PySpark → PostgreSQL star schema (JDBC) → Airflow → Docker.
PySpark Airflow AWS S3 PostgreSQL Python Docker
ML Pipeline · Churn
Customer Churn Pipeline
▶ Demo
ML-integrated ETL, feature engineering, profit-based threshold optimization; deployed on AWS with Cognito auth.
Python AWS ML Render
NLP · Sentiment
NLP Sentiment Pipeline
Live
Large-scale text processing pipeline with a Streamlit dashboard.
NLP Streamlit Neural nets
Analytics · SQL
Workforce SQL Analysis
Complete
CTE-first analytical SQL surfacing workforce metrics.
SQL DataCamp Analytics
Work Experience
Software Engineering Intern — Valuedate.io
Current
Jun 2026 – Present · Viana do Castelo, Portugal
  • Fixed a production bug in an inherited, undocumented Django codebase (no DB access), shipped with Pytest coverage.
  • Introduced Playwright to the company: built an E2E test suite from scratch with reusable helpers, fixing additional bugs surfaced by test failures.
  • 4 production PRs merged in first 3 weeks, each reviewed and approved by the engineering lead.
Main Projects
Data Engineering · ELT
World Bank GDP Pipeline
Complete
Paginated REST API → S3 (Hive partitioning) → PySpark → PostgreSQL star schema (JDBC) → Airflow → Docker.
PySpark Airflow AWS S3 PostgreSQL Python Docker
ML Pipeline · Churn
Customer Churn Pipeline
▶ Demo
ML-integrated ETL, feature engineering, profit-based threshold optimization; deployed on AWS with Cognito auth.
Python ETL AWS ML Render
NLP · Sentiment
NLP Sentiment Analysis Pipeline
Live
Large-scale text processing pipeline with a Streamlit dashboard.
NLP Streamlit Neural nets Python
Other Projects
Competition · DataCamp
Cleaning Data & The Skies
Competition
Cleaned and preprocessed real-world messy flight data to extract business insights and answer key analytical questions.
Python Data Cleaning EDA
Analytics · SQL
SQL Workforce Data Analysis
Complete
CTE-first analytical SQL surfacing workforce metrics.
SQL Analytics
EDA · Finance
S&P 500 Financial EDA
Complete
Analysis of S&P 500 company distribution across US states, with focus on sector concentration patterns within regions.
Python Pandas Matplotlib Finance
Technical Skills
Languages
3 skills
Python SQL Java
Data Engineering
6 skills
PySpark Airflow dbt ETL/ELT Design Star-Schema Modeling Data Quality Validation
Backend / SWE
5 skills
Django REST APIs PostgreSQL JDBC Git/PR-Based Review
Testing / QA
3 skills
Pytest Playwright (Suite Architecture + Reusable Helpers) E2E Automation
AI / ML Tooling
8 skills
Copilot Claude Local LLMs (Dev) GPT Gemini Perplexity (Research/Chat) Feature Engineering Model Evaluation
Cloud & DevOps
7 skills
AWS S3 AWS IAM AWS Cognito Docker CI/CD Kubernetes (Learning) Terraform (Learning)
Soft Skills
Critical Thinking & Problem Solving
Analytical Mindset & Data-Driven Thinking
Attention to Detail
Curiosity & Learning Agility
Ability to Present Results & Insights
Persistence & Self-Discipline
Professional Certifications
01
Data Engineer Professional
DataCamp
View PDF
02
AI Engineer for Data Scientists Associate
DataCamp
View PDF
03
Data Scientist Professional
DataCamp
View PDF
04
Python Data Associate
DataCamp
View PDF
05
SQL Associate
DataCamp
View PDF
About Me
Building reliable, scalable data systems that bridge Engineering and Machine Learning.

I'm an Informatics Engineering graduate focused on building scalable data pipelines and production-ready backend systems — with hands-on experience across the full stack from ingestion to deployment.

I design ETL workflows, transform large datasets, and build the backend systems that support them, including authentication, testing, and CI. My work spans data ingestion, transformation, and orchestration, as well as Django applications, automated testing (Pytest, Playwright), and production pull requests.

Recently, I completed the Data Engineer Professional Certification, working with tools such as Airflow and logging systems, strengthening my understanding of workflow orchestration and pipeline monitoring.

Currently working as a Software Engineering Intern at Valuedate.io, and open to Data Engineer, Software Engineer, Test Automation, and AI Engineering roles — remote worldwide or hybrid in North Portugal.

Quick Info
Education
Bachelor in Informatics Engineering
ESTG, Instituto Politécnico de Viana do Castelo
Location
Viana do Castelo, Portugal
Open to remote (worldwide) · Hybrid (North Portugal)
Contact
social@gabrieldaes.com
Response within 24h
Resume
View CV
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