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Allyson de Oliveira Brandão

@allysondeoliveirabra

Senior Software Engineer at MJV Technology & Innovation who modernized Bradesco Seguros’ legacy monoliths into Java 21 microservices.

Brazil

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At MJV Technology & Innovation, I worked on Projeto Bravo for Bradesco Seguros, modernizing legacy monoliths into scalable microservices with Java 21 and Spring Boot. I also built REST APIs and integrated corporate systems with AWS services.

Earlier at MJV, I developed full-stack features for Projeto Identidade Digital and migrated SOAP integrations to REST using IBM DataPower. At Indra, I developed data ingestion and transfer services for Banco do Brasil and helped improve application response time.

In my independent projects, I developed a desktop management application for LanchoneteUDV and reworked SQL Server schemas for multitenant architecture. I also structured CI/CD pipelines and created local AI automation systems using Python, FastAPI, Electron, and React.

Experience

Work history, roles, and key accomplishments

Engenheiro de Software Sênior

MJV Technology & Innovation

May 2025 - Feb 2026 (9 months)

Led modernization of legacy monoliths to scalable microservices using Java 21 and Spring Boot. Built REST APIs, integrated AWS services, and maintained Angular 18 frontend.

Java Spring Boot Angular REST APIs AWS Docker Kubernetes Microservices Code Review Security

Engenheiro de Software Pleno

MJV Technology & Innovation

Jul 2023 - May 2025 (1 year 10 months)

Developed full stack solutions for the Identidade Digital project, migrating SOAP integrations to REST APIs using IBM DataPower. Applied agile practices to reduce technical debt and improve testing.

Java Angular React SOAP REST APIs IBM DataPower Junit Agile Technical Debt Reduction

Engenheiro de Software Pleno

Compass UOL

Jan 2023 - May 2023 (4 months)

Maintained and evolved corporate systems in Java/Spring Boot, focusing on stability, security, and performance. Applied Clean Code practices and documented technical specifications via Swagger/OpenAPI.

Java Spring Boot Clean Code Security Swagger OpenAPI

Engenheiro de Software Pleno

Indra

Aug 2022 - Dec 2022 (4 months)

Developed backend services for data ingestion and transfer for Banco do Brasil, optimizing SQL queries and increasing test coverage with TDD. Also created modern interfaces with Angular 14 for Neoenergia.

Java Spring Boot SQL Server MySQL Test Driven Development Angular NodeJS Shell Scripting

Engenheiro de Software Pleno

Almaviva Solutions

Mar 2022 - Jul 2022 (4 months)

Modernized legacy interfaces (JSF, JSP, Struts) to Angular and React, integrating with REST APIs to improve usability and load times.

Angular React REST APIs Legacy Migration JSF JSP Struts

Engenheiro de Software Júnior

Venha Pra Nuvem

Oct 2020 - Dec 2021 (1 year 2 months)

Built corporate microservices-based applications for finance and public management sectors. Applied TDD with JUnit and Mockito, and used Docker, Jenkins, and Git for continuous integration.

Microservices Test Driven Development Junit Mockito Docker Jenkins Git