Open to opportunities

Marco Aurélio Dias

@marcoaurliodias

Message

I build integration-heavy software, APIs, and data-driven systems that connect business platforms and improve delivery.

Brazil

Message

What I'm looking for

I'm looking to build efficient, data-driven systems that improve the connection between technology and business results, especially through integrations, APIs, modern delivery practices, and generative AI solutions.

I've led technical delivery for a Tax Reform Calculation Engine and integration projects connecting Totvs RM, Oracle HCM, Oracle OIC, and SaaS providers. I translate business needs into technical solutions, documentation, flowcharts, and reliable integrations.

Across senior development and team leadership roles, I've built REST and SOAP APIs, API gateways for Magento and Shopify product access, e-commerce enhancements, payment integrations, and complex reporting systems. I also manage database optimization, PL/SQL procedures, views, triggers, and performance tuning across Oracle, MySQL, SQL Server, and PostgreSQL.

I'm focused on efficient, data-driven software and applying AI Agents, LLMs, MCP, RAG, and NLQ to modern solutions. I bring hands-on experience with Agile delivery, CI/CD, PHP, Python, C#, GoLang, Laravel, Angular, Node.js, Docker, and AWS.

Experience

Work history, roles, and key accomplishments

Tech Lead

Unknown

Dec 2024 - Jul 2025 (7 months)

Led the technical team for a Tax Reform Calculation Engine project, responsible for technical meetings, documentation, flowcharts, and communication between business and technical teams.

Integration Design SQL MySQL Oracle Agile Kanban

Development Specialist and Tech Lead

Unknown

Jul 2020 - Dec 2024 (4 years 5 months)

Senior Developer and Tech Lead responsible for technical supervision and defining solutions with the Project Manager. Designed and led an integration project between Totvs RM and Oracle HCM using Oracle OIC and middlewares, and maintained GoLang applications integrated with SaaS providers.

PHP Laravel Python MSSQL Redis HTML5 CSS SASS BIツール AI Agents LLM MCP RAG Agile

Senior Developer and Development Team Leader

Unknown

May 2018 - Jul 2020 (2 years 2 months)

Developed an API Gateway that unified product access for multiple brokers, enabling product purchase through a single service or via browser (Magento, Shopify). Managed database development, optimization, procedures, views, triggers, and performance tuning, and led Scrum sprints for the development team.

PHP SQL MySQL HTML5 CSS Angular BIツール C#Team Leader

Senior Developer

Unknown

Jan 2016 - May 2018 (2 years 4 months)

Focused on web development with complex reports and real-time updates, created SQL functions and optimized queries for shared reporting, enhanced the institution's e-commerce (Magento), and led a 15-developer team across 5 countries.

PHP CodeIgniter SQL MySQL HTML5 CSS Angular BIツール

Web Developer

Unknown

Mar 2012 - Feb 2015 (2 years 11 months)

Developed internal and external projects for a telecommunication company, responsible for planning and maintenance of all systems, and reported monthly to headquarters in the UK regarding project progress, pending issues, and costs.

PHP C#MSSQL HTML5 CSS Asterisk

Web Developer and Systems Analyst

Unknown

Jan 1997 - Jan 2012 (15 years)

Fifteen years of experience developing corporate projects from simple static websites to complex HR systems for multinational companies, strengthening communication between developers, analysts, and project managers.

PHP C#MSSQL MySQL Oracle HTML HTML5 CSS