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Mateus Oliveira

@mateus_cristais

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Software engineer with over 10 years of experience in Java development and 6 years of in JS.

Brazil

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What I'm looking for

Challenges

I grew up in a small city called Cristais Paulista in São Paulo state, Brazil. After graduating from Franca University in 2014, I started my career in software development working for shoe companies. During that time, I honed my skills in Java and related frameworks like Spring and Hibernate, as well as relational databases like Oracle and MySQL.

Later, I joined a software company called SMN, where I worked on projects for Magazine Luiza, one of the largest retailers in Brazil. I used Java, Node.js, and React to provide services for them. My skills and potential were recognized, and Magazine Luiza hired me to work on their supply team. There, I worked with Python, Node.js, and Java, as well as databases like Oracle, PostgreSQL, and AWS cloud technologies like SNS, SQS, and S3.

After two years at Magazine Luiza, I joined CVC, a travel agency, where I worked on integrating another company into their applications using Angular and Java, as well as databases like PostgreSQL and MongoDB.

My most significant challenge to date was working for DASA, the largest hospital and clinical exams company in Latin America. I was contracted by FCamara to work on a payment service to connect a check-in app. After delivering that project, I was asked to become a tech lead, and my team and I were responsible for mapping and drawing services and databases for a patient form control project. We used agile methods like Scrum and Kanban to manage the project and deliver it on time and with no delays. We also prioritized software testing, including unit testing, to ensure the application was robust and scalable.

Experience

Current

Tech Lead

Current

FCamara

Sep 2021 - Present (2 years 8 months)

Led the development of a scalable microservice architecture for a cloud-based system using Java, MongoDB, and AWS services, resulting in a huge economy with third partners.
Collaborated with the product to implement a new platform to answer some patient questions to connect with new Java microservices, leveraging VueJs.

Java Spring MongoDB PostgreSQL Node

Full-stack Developer

LuizaLabs

Jul 2019 - Aug 2020 (1 year 1 month)

Developed and maintained web applications for supply and scheduling teams using Flask and Redis.
Created and managed RESTful APIs for data retrieval and manipulation.
Designed and implemented efficient database structures using Postgres.
Implemented test-driven development methodologies to ensure high-quality code.

Java Postgres Redis Python MySQL Spring

Full-stack Developer

cvc

Aug 2020 - Aug 2021 (1 year)

Migrated a travel sales page to the company's systems.
Designed a user-friendly interface for selecting trips with CVC.
Developed Java Spring Boot microservices to support the web application.
Participated in code reviews and provided constructive feedback to other developers.

Java Spring AWS React MySQL

Java Developer

MazzaTech

Apr 2016 - Aug 2017 (1 year 4 months)

Developed and maintained a logistics platform for a shipping company using Java, Spring Boot, and Angular.
Optimized platform performance by utilizing caching techniques and implementing database indexes.
Designed and managed databases using MySQL, including data modeling and schema design.
Collaborated with product management and UX/UI design teams to ensure product requirements were met.

Java Angular MySQL Spring

Full-stack Developer

ENGSolutions

Aug 2017 - Jun 2019 (1 year 10 months)

Developed and maintained web applications for managing monthly employee goals using Spring Boot and Spring Data.
Work with Threads to process all employees goals reducing for 3 minutes all process.
Designed and implemented efficient database structures using Postgres.
Utilized test-driven development methodologies to ensure high-quality code.
Collaborated with cross-functional teams, including pro

Java Spring MySQL PostgreSQL Mongo React Node

Java Developer

Carmen Steffens

Sep 2014 - Apr 2016 (1 year 7 months)

Developed and maintained web applications for the shoe industry using Java, Hibernate and X++ language inside Microsoft Dynamics AX.
Designed and implemented efficient database structures using MySql and SqlServer

Java MySQL