Moacir Mazon

Senior Software Engineer (Backend and also as a fullstack engineer in some projects).

Key responsibilities and accomplishments:

• Developed a conversational AI assistant platform for enterprise clients, combining custom microservices build in Rust, prompt engineering with advanced integration of Google Dialogflow, internal Avaya systems, and customer-specific APIs. I was one of the key point of contact between the client, cross-functional teams, and engineering, ensuring alignment of technical and business goals. The solution significantly improved agility and response times for customer's car appointment service operations.
• Developed a user-friendly frontend interface using Yew (Rust) for configuring rule-based logic applied to inbound and outbound contact center calls. The interface integrates seamlessly with a Rust-based backend to ensure efficient rule management and system consistency.
• Also handling source code management (Git), CI/CD pipelines, and Kubernetes log inspection, configuration and troubleshooting.
• Stack: Rust, Yew, Google Dialogflow, Go, Kubernetes, Microservices, REST APIs

• Senior Java Backend Engineer and technical team lead in a logistics optimization project for a major computer manufacturing and retail company. Also served as the technical point of contact for the client, ensuring smooth communication and alignment of technical expectations.
• Delivered high-performance RESTful APIs using Java (Spring Boot) to support warehouse management, order processing/ invoicing, and delivery workflows. Collaborated closely with the customer, product analysts, and QA teams to ensure functional accuracy and business alignment — contributing to a significant improvement in operational efficiency and delivery tracking accuracy.
• Stack: Java 17, Spring Boot, PostgreSQL, AWS

Senior Java Engineer(Also as a fullstack engineer in some projects) allocated to one of the largest global energy production companies.

Key responsibilities and accomplishments:

• Developed and maintained enterprise applications using Java (Spring MVC and Spring Boot), REST APIs, and infrastructure components based on AWS ensuring the company standards.
• Participated in the movement of migration Java monolith legacy projects to cloud-based microservices architecture, contributing to service decomposition and API design.
• Additional experience:
• Worked for 1.5 years allocated to Nexxera IT, one of Supero’s top-tier clients — a fintech software company, focused on banking and payment transaction systems. Contributed to backend systems built with Java EE and Python
• Stack: Java 8, 11 SpringBoot, Postgress, AWS, JSF, Angular 8, HTML, CSS, JavaScript

• Substratum is a software house specialized in Java web applications. I worked as a Java Web Engineer, primarily focused on the JSF 2+ framework.
• Collaborated closely with a leading Brazilian health insurance company to develop and enhance their customer portal, improving usability, performance, and feature availability.
• Participated in requirement analysis, UI/UX improvements, and the implementation of secure and scalable web components aligned with healthcare data standards.
• Stack: Java, JSF, Oracle DB, EJB, Hibernate, JBoss, HTML, CSS, JavaScript

• Worked on the development of Java Web applications using a proprietary framework built on Java using Struts from the frontend, EJB, and Hibernate. Key responsibilities and accomplishments:
• Delivered applications for various departments of the State Government of Santa Catarina, including systems for managing fines, contracts, procurement, construction, and transportation.
• Stack: Java, Struts, Oracle DB, EJB, Hibernate, JBoss, HTML, CSS, JavaScript

• Worked on software for users management as part of my first professional experience in software development.
• Collaborated with a skilled development team to maintain and enhance a commercial application built with Visual Basic, delivering new features.
• Took ownership of the full documentation lifecycle, including technical analysis, specifications, user and technical manuals, installation guides, and release notes.
• Stack: Visual Basic, SQL, Software Documentation, Feature Development

• Worked in direct customer support, acting as the first point of contact for users experiencing issues with the company’s software CRM, developed in PowerBuilder.
• Handled phone calls and written support requests, investigating whether reported issues were actual bugs or misunderstandings in how to use the system.
• Performed code debugging and analysis of stored procedures in the database to identify root causes and provide fast, effective solutions.
• Responsible for software installation and configuration at client sites, as well as training end users to ensure proper system usage and adoption.
• Stack: PowerBuilder, SQL/Stored Procedures, Customer Training, On-Site Installation, Technical Support