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I'm a backend developer with 4+ years of experience building and maintaining payment and financial web platforms, primarily in PHP and JavaScript. I design robust APIs, integrate third-party services, and create scalable, secure systems. I'm currently pivoting toward Python and AI, exploring practical AI integration with OpenAI APIs, LangChain, and Retrieval-Augmented Generation (RAG). I thrive in Agile teams and enjoy turning complex problems into clean, maintainable solutions.…I'm a backend developer with 4+ years of experience building and maintaining payment and financial web platforms, primarily in PHP and JavaScript. I design robust APIs, integrate third-party services, and create scalable, secure systems. I'm currently pivoting toward Python and AI, exploring practical AI integration with OpenAI APIs, LangChain, and Retrieval-Augmented Generation (RAG). I thrive in Agile teams and enjoy turning complex problems into clean, maintainable solutions.

Fábio Batista

Full Stack Developer, Web Developer, Back-End Developer, +2

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I'm a backend developer with 4+ years of experience building and maintaining payment and financial web platforms, primarily in PHP and JavaScript. I design robust APIs, integrate third-party services, and create scalable, secure systems. I'm currently pivoting toward Python and AI, exploring practical AI integration with OpenAI APIs, LangChain, and Retrieval-Augmented Generation (RAG). I thrive in Agile teams and enjoy turning complex problems into clean, maintainable solutions.…I'm a backend developer with 4+ years of experience building and maintaining payment and financial web platforms, primarily in PHP and JavaScript. I design robust APIs, integrate third-party services, and create scalable, secure systems. I'm currently pivoting toward Python and AI, exploring practical AI integration with OpenAI APIs, LangChain, and Retrieval-Augmented Generation (RAG). I thrive in Agile teams and enjoy turning complex problems into clean, maintainable solutions.

Available to hire

I’m a backend developer with 4+ years of experience building and maintaining payment and financial web platforms, primarily in PHP and JavaScript. I design robust APIs, integrate third-party services, and create scalable, secure systems.

I’m currently pivoting toward Python and AI, exploring practical AI integration with OpenAI APIs, LangChain, and Retrieval-Augmented Generation (RAG). I thrive in Agile teams and enjoy turning complex problems into clean, maintainable solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Portuguese

Fluent

Spanish; Castilian

Beginner

Work Experience

Full Stack Developer & Team Lead at Eupago

April 1, 2023 - Present

Lead developer for financial web applications and payment plugins. Supervised a 4-member team, managed sprints, and conducted code reviews using Agile/Scrum practices. Designed and optimised REST APIs in PHP and Java to support payment and financial features, focusing on stability and ease of integration for client platforms. Worked with Docker-based environments in daily development.

Full Stack Developer at Eupago

February 1, 2022 - April 1, 2023

Developed and maintained secure payment modules for e-commerce platforms including WooCommerce, PrestaShop, and Magento. Integrated new payment providers via API, implementing authentication flows, transaction handling, and database logic.

Construction Director & Team Manager at Moduscomplete

March 1, 2020 - January 1, 2021

Directed engineering teams and managed project execution. Strengthened leadership, organisation, and process management skills applicable to software delivery.

Design & Construction Engineer at CJR Renewables

July 1, 2018 - March 1, 2020

Contributed to renewable energy infrastructure projects and supported continuous improvement processes through Kaizen methodology.