Open to opportunities

João Vitor de Souza

@joovitordesouza

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I build enterprise automation and backend solutions with Python and Java.

Brazil

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What I'm looking for

I'm looking to build scalable backend, automation, cloud, or enterprise applications where I can solve complex problems, reduce manual work, improve software quality, and grow in DevOps, distributed systems, and software architecture.

At Oracle, I build internal software, automation tools, and diagnostic utilities for mission-critical enterprise environments using Python, Java, and Shell Script.

I've automated Oracle OSB and SOA Suite migration deployments from 2–3 days to approximately 10 minutes, and built a diagnostic-data tool adopted as the standard process by a specialized team in India. I also investigate enterprise Java applications through logs, stack traces, heap dumps, and JAR artifacts to support root-cause analysis.

Previously, I developed Angular and Ionic mobile applications for logistics and field-sales operations, including offline synchronization, geolocation, QR-code scanning, local persistence, and REST API integrations.

Across web development, application support, and enterprise software, I enjoy solving complex engineering problems, removing repetitive manual work, and building scalable, maintainable applications.

Experience

Work history, roles, and key accomplishments

Systems Development Analyst

Oracle

Apr 2022 - Apr 2026 (4 years)

Developed internal software solutions, automation tools, and engineering utilities for Oracle enterprise environments using Python, Java, and Shell Script, reducing manual effort and accelerating troubleshooting for technical teams supporting mission-critical customers.

Key Responsibilities

Built a Python and Shell automation tool that consolidated daily diagnostic data across products, applic

Mobile Developer

PGOPEN CONSULTORIA EM TI

May 2021 - Apr 2022 (11 months)

Developed and maintained enterprise mobile applications for logistics and field sales operations using Angular and Ionic, delivering business-critical features used daily by large-scale commercial operations.
Key Responsibilities
Developed and enhanced hybrid mobile applications using Angular and Ionic.
Implemented offline synchronization, local storage, geolocation, QR code scanning, navigation f

PHP Web Developer

MyWebsolution / Criação de Sites e Sistemas

Aug 2020 - May 2021 (9 months)

Developed, maintained, and enhanced web applications, institutional websites, landing pages, and e-commerce platforms using PHP, Laravel, WordPress, and Adianti Framework, delivering solutions tailored to business and client requirements.
Key Responsibilities
Developed new features and maintained existing web applications.
Built institutional websites, landing pages, and e-commerce solutions.
Deve

Application Support Analyst (Level 2)

IT2B - Tecnologia

Nov 2019 - Aug 2020 (9 months)

Worked as a Level 2 Application Support Analyst on the SP Sem Papel project (PRODESP), acting as the final technical support layer before the software engineering team. Responsible for investigating complex incidents, reproducing software defects, documenting technical findings, and serving as the primary communication bridge between operations and development teams.
Key Responsibilities
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