Open to opportunities

Vitor Barbosa Oliveira

@vitorbarbosaoliveira

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Mid-Level Back-End Developer specializing in Java and enterprise solutions.

Brazil

Message

What I'm looking for

I'm looking for opportunities to innovate and contribute to impactful projects in a collaborative environment.

I'm a Backend Developer with 3 years of experience, specializing in Java development and building enterprise solutions that make an impact. My experience includes developing RESTful APIs and microservices, always focusing on clean code and scalable solutions. I'm driven by creating efficient systems that solve real problems.

Throughout my career, I have achieved significant milestones, including database optimization with Kafka and the integration of a large-scale ChatBot system serving over 1 million users. I actively participate in technical decisions and architecture planning, ensuring that I contribute effectively to projects that enhance user experience and system performance.

My work has involved developing Java-based ChatBots, optimizing database queries to reduce server load, and implementing caching strategies to improve application response times. I am passionate about leveraging technology to create solutions that address real-world challenges.

Experience

Work history, roles, and key accomplishments

Current

Mid-Level Full-Stack Developer

Current

Otimize-TI-Tecnologia Otimizando Negócios

Dec 2024 - Present (9 months)

Developed a Java-based ChatBot integrated with Google's DialogFlowCX for the SEI platform, actively participating in technical decisions and architecture planning. Implemented backend services using Java, Kafka, PostgreSQL, and Spring Framework to enable seamless communication between the ChatBot and SEI system.

Java Kafka PostgreSQL Spring Framework PrimeFaces React RESTful APIs Microservices SQL

Mid-Level Java Developer

Social Distribuidora

Oct 2024 - Dec 2024 (2 months)

Developed Java and PL/SQL routines for extending and customizing Sankhya ERP, implementing system integrations between ERP and various third-party applications. Optimized database queries and procedures to enhance system performance.

Java Pl SQL ERP Database Optimization System Integration SQL Performance Tuning

Java Developer

Autbank-Projetos e Consultoria Ltda

Jan 2023 - Oct 2024 (1 year 9 months)

Developed and maintained fixed income financial systems serving major Brazilian companies, ensuring compliance with Central Bank regulations and standards. Implemented new features and optimizations for legacy systems with over 20 years of market presence.

Java Financial Systems Compliance Optimization SQL RESTful APIs

Full-Stack Developer

7focus Systems

Feb 2022 - Jan 2023 (11 months)

Contributed to the development and maintenance of a municipal management legacy system, implementing new features for RESTAPI using Java and Spring Boot. Developed web interface components using Angular.

Java Spring Boot Angular REST APIs Web Development SQL Microservices

Education

Degrees, certifications, and relevant coursework

Federal University of Goiás

Bachelor's Degree, Information Systems

Currently pursuing a Bachelor's Degree in Information Systems. The curriculum focuses on developing a strong foundation in various aspects of information technology and systems.