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Registration: 21.10.2026

João Paulo de Avila

Specialization: PHP Developer / Full Stack Software Engineer / Data & AI
Full Stack PHP Developer with 4.5+ years of experience building and maintaining production web applications and back-end systems used by hundreds of B2B logistics clients. Strong foundation in PHP, object-oriented programming (OOP), MVC architecture, design patterns, PostgreSQL / PL/pgSQL and REST and SOAP API integrations. Experienced in debugging, root-cause analysis, production support and code reviews. Currently pursuing an MSc in Data Science and Advanced Analytics at NOVA IMS, adding Python, Machine Learning, NLP and LLM skills.
JavaScript SQL REST rest api Back-end MongoDB PHP PyTorch HTML XGBoost MVC MySQL Tensorflow PostgreSQL CSS NLP Linux pandas Design Patterns Debugging NumPy Machine Learning Full Stack Web Services Deep Learning API SOAP scikit-learn LLM Python Business Intelligence Git Docker OOP
Full Stack PHP Developer with 4.5+ years of experience building and maintaining production web applications and back-end systems used by hundreds of B2B logistics clients. Strong foundation in PHP, object-oriented programming (OOP), MVC architecture, design patterns, PostgreSQL / PL/pgSQL and REST and SOAP API integrations. Experienced in debugging, root-cause analysis, production support and code reviews. Currently pursuing an MSc in Data Science and Advanced Analytics at NOVA IMS, adding Python, Machine Learning, NLP and LLM skills.
JavaScript SQL REST rest api Back-end MongoDB PHP PyTorch HTML XGBoost MVC MySQL Tensorflow PostgreSQL CSS NLP Linux pandas Design Patterns Debugging NumPy Machine Learning Full Stack Web Services Deep Learning API SOAP scikit-learn LLM Python Business Intelligence Git Docker OOP

Skills

PHP
PostgreSQL
PL/pgSQL
SQL
OOP
MVC
Design Patterns
REST API
SOAP API
Web Services
Third-party API Integration
JavaScript
HTML
CSS
MySQL
MongoDB
Git
Linux
Docker
Code Review
Debugging
Production Support
Query Optimisation
Data Modelling
Python
Machine Learning
Deep Learning
NLP
LLMs
PyTorch

Work experience

Full Stack Developer (PHP)
06.2020 - 02.2025 |ATUA Sistemas by NStech
PHP, JavaScript, PostgreSQL, PL/pgSQL, REST, SOAP
Full stack development of logistics management systems used by hundreds of B2B clients. ● Developed and maintained full stack features in PHP and JavaScript for logistics management systems used by hundreds of B2B clients, applying OOP, MVC and design patterns. ● Designed, maintained and optimised PostgreSQL and PL/pgSQL database objects (stored procedures, triggers, views), ensuring data integrity and performance across operational systems. ● Built and integrated REST and SOAP APIs and web services connecting the platform to third-party logistics systems. ● Investigated and resolved production incidents and support tickets, performing root-cause analysis across application code, SQL and integrations. ● Conducted structured code reviews and mentored software development interns, promoting clean code and best practices. ● Collaborated with support and cross-functional teams to triage and answer client technical queries.

Educational background

Data Science and Advanced Analytics (Masters Degree)
since 2025 - Till the present day
NOVA University Lisbon, NOVA IMS
Computer Science (Academic Exchange)
2023 - 2024
Maria Curie-Sklodowska University
Computer Science (Bachelor’s Degree)
2020 - 2025
University of Passo Fundo

Languages

PortugueseNativeEnglishAdvanced