Data & operations
Reading and adjusting data in MySQL, PostgreSQL, and Oracle; failure analysis with structured handoff to the development team; support for resolving operational inconsistencies.
ORCHESTRATION_SYSTEM_v2● ONLINE
Backend · Frontend · Mobile
Jorge Guerreiro de Amorim
Full Stack Developer
Backend development and integration in corporate environments: REST APIs, relational persistence, and controlled evolution of legacy systems.
LATENCY
< 48ms
UPTIME
99.99%
STACK
HYBRID
Interactive terminal — type commands as in a shell.
portfolio — zsh
Enter sends · help lists commands
Professional profile
About me
Professional with a solid transition from IT support to software development in an industrial context. Experience in incident diagnosis, data manipulation and consistency across corporate RDBMS, and currently delivering REST APIs, modernizing a legacy Android app (Java), and restructuring a React Native codebase. Pursuing a Software Engineering degree; career focused on technical ownership, change traceability, and continuity of systems that sustain operations.
Backend & integration
REST APIs in PHP (Laravel) aligned with an online architecture; evolution of a field sales app from an offline model to fully online operation.
Corporate delivery
Collaborative work focused on stability, continuity, and service quality; participation in building a web BI system with routines serving multiple departments.
Competency modules
Where I go deep
Each pillar was shaped in production — from the first line of code to real-time monitoring.
Backend
HTTP services, REST contracts, and a persistence layer aligned with business rules in corporate environments.
APIs
Design and maintenance of Laravel APIs for integration between mobile clients, internal systems, and administrative workflows.
Databases
Data operations and consistency across relational engines (MySQL, PostgreSQL, Oracle) with disciplined diagnosis and correction.
Reliability
Prioritizing stability, change traceability, and support for operational continuity of production systems.
Instrumentation
Tech stack
Technologies applied in production and continuously evolving in the current corporate context.
MySQL
terminal_ready
Queries, adjustments, and data governance in corporate environments; recurring foundation for integrations and operational reports.
PostgreSQL
terminal_ready
Used for diagnosis, data maintenance, and interoperability with other internal systems.
Oracle Database
terminal_ready
Data manipulation and analysis in legacy contexts integrated with the institutional ecosystem.
Laravel
terminal_ready
REST APIs and web applications in PHP; layered patterns, routes, and persistence for BI systems and online operations.
Java
terminal_ready
Maintenance and evolution of a production Android app, including migration from offline architecture to online service dependency.
React Native
terminal_ready
Structural reorganization and improvement of a mobile app codebase shared by commercial operations.
Deployments
Featured projects
A selection of backend systems focused on reliability, scalability, and architectural clarity.
Modernization — field sales app (Android)
Evolution of a legacy Java app: transition from predominantly offline operation to a fully online architecture, with service dependency and alignment to the new corporate platform.
- Java
- Android
- API integration
REST APIs — Laravel layer
Implementation of PHP (Laravel) endpoints to support online operation flows, decoupling mobile clients from centralized persistence logic and business rules.
- PHP
- Laravel
- REST
Web system — Business Intelligence
Collaborative development of a Laravel application for BI, with multiple routines serving distinct departmental needs, strengthening internal information governance.
- PHP
- Laravel
- MySQL
Consolidation — React Native app
Structural reorganization and improvement of a production React Native codebase, focused on maintainability and alignment with available backend services.
- React Native
- TypeScript/JavaScript
- REST APIs
Chronological record
Timeline
Technical and higher education, support experience with corporate RDBMS, and current role as a senior developer in an industrial environment.
- Jan/2021 — Dec/2023
Technical education
ETEC Dr. Júlio Cardoso
Electronics Technician integrated with High School. Training focused on systems fundamentals, lab work, and methodological rigor.
- Jan/2024 — Present
Undergraduate studies in progress
UNIFRAN — Bachelor's in Software Engineering
Higher education aligned with software engineering, system lifecycle, and development best practices.
- Jul/2024 — Feb/2025
IT Support Analyst
Usina de Laticínios Jussara S/A
Support for users and internal clients; technical diagnosis in corporate systems; failure analysis with structured handoff to development; data adjustments in MySQL, PostgreSQL, and Oracle; support for resolving operational inconsistencies. Parallel deepening in Android (Java), React Native, and PHP.
- Feb/2025 — Present
Senior Software Developer
Usina de Laticínios Jussara S/A
Evolution of a legacy Android (Java) app with migration from offline to online model; development of REST APIs in Laravel; structural reorganization of a React Native app; team-built Laravel web BI system with multi-department routines. Work oriented toward stability and operational continuity.
Direct channel
Contact
For full-time opportunities or technical alignment, use the form, email, phone, or networks below.