Daniel Moreira Senior Software Engineer | Full-Stack Developer | AI Engineer

Full Stack Web (11.0 yr.), AI and Machine Learning (3.5 yr.)

Summary

Software engineer with a robust background in full-stack development and proven expertise in Java and Python. Demonstrated success in architecting and implementing high-transaction APIs with low latency in Java/Spring Boot, and optimizing ETL pipelines using Python/Airflow. Experience includes substantial cost reductions and performance enhancements in cloud environments, AI-driven application development, and leading large-scale software migrations and modernization projects. Holds a master's degree in Computer Science and possesses advanced certifications from prominent institutions, encompassing Java, AWS, and Docker, accompanied by a strong foundation in Agile methodologies.

Work Experience

Senior Full-Stack Developer, Java/Spring Boot API Development and ETL Pipeline Optimization

Duration: 2021 - 2024
Summary: Led the optimization of ETL pipelines to reduce runtime significantly.
Responsibilities: Architected Java/Spring Boot APIs, optimized Python/Airflow ETL pipelines, improved AWS Lambda cost efficiency, developed real-time fraud detection dashboard.
Technologies: Java, Python, Spring Boot, React, Redux, AWS Lambda, JUnit, Terraform

Python/Java Tech Lead, PHP to Java Migration and AI Recommendation Engine Development

Duration: 2017 - 2021
Summary: Managed a team during the complete migration from PHP to Java and built an AI-powered recommendation engine.
Responsibilities: Led PHP to Java migration, created Python-based AI recommendation engine, integrated security features into Angular admin portal.
Technologies: Java, Python, Spring Boot, Angular, OAuth2, JWT

Web Development Specialist, Patient Portal Scaling and Java Module Integration

Duration: 2012 - 2017
Summary: Scaled a Django-based application to a larger user base and integrated a Java module to improve data accuracy.
Responsibilities: Scaled patient portal, integrated HL7/FHIR Java module, optimized frontend performance.
Technologies: Django, Java, Redis, JavaScript, CSS3

Senior Software Engineer, Inventory Management System

Summary: Developed an inventory management system with efficient backend and user-friendly dashboard.
Responsibilities: Created backend with Spring Boot, crafted frontend dashboard with Material-UI including real-time stock alerts.
Technologies: Java, Spring Boot, JPA/Hibernate, React, Material-UI

AI Engineer, AI Chatbot Platform

Summary: Implemented an AI chatbot platform that enhanced conversation handling and reduced customer service tickets significantly.
Responsibilities: Built NLP engine with spaCy & BERT, handled multi-channel integration with WhatsApp Business API.
Technologies: Python, Django, spaCy, BERT, WhatsApp Business API

Education

MSc in Computer Science
Nanyang Technological University
2010 - 2012

Certification

Oracle Certified Java SE 11 Developer
2023
AWS Certified Developer
2024
Docker Certified Associate
2024
Scrum Master (PSM 1)

Not your tech stack?

Join the Upstaff community and we are looking for the best project for you. Be ready for the next steps: Create your profile on our website (import from LinkedIn)

20-30-minute screening call
Technical interview
Feedback
Project Selection (we are looking for the best project for you).

We work with developers from 50+ countries in different regions: Europe, LATAM, the U.S. (W-9 form owners), Canada, Asia (Philippines, Indonesia), Oceania (Australia, New Zealand, Papua New Guinea), and the the UK.

We don’t have a legal and ethical basis to accept applicants from the following countries: Russia, Belarus, Iran, North Korea
We do not provide visa assistance, and our cooperation model does not include the benefits typically offered with direct hire.