Veronica N

Backend Developer specialized in PHP and Laravel, with over 4 years of experience building, maintaining and improving business-critical corporate systems used across industrial, laboratory and administrative operations. Strong background in complex business rules, SQL performance optimization, legacy system refactoring, APIs and access control. Experienced in improving system stability, reducing bottlenecks and increasing maintainability in high-impact internal platforms.

Hands-on experience with layered architecture, Service Layer, Repository, DAO and DTO patterns, with a pragmatic approach to clean code, automated testing and long-term system evolution.

Mid-Level Software Developer at Bio Extratus (Present)

• Work on the evolution of a business-critical internal corporate system, directly supporting industrial, laboratory, quality and administrative processes
• Develop and maintain backend solutions using PHP, Laravel and CodeIgniter, applying layered architecture and software design patterns
• Implement features involving complex business rules for production, quality control, packaging, recipe control, laboratory routines and permissions
• Optimize SQL queries and critical reports, reducing bottlenecks and improving response time in high-volume routines
• Model, maintain and improve MySQL databases, including index analysis and optimization of legacy queries
• Implement and evolve RBAC-based access control, including hierarchical rules and role-based permissions
• Refactor legacy modules to improve readability, code reuse, stability and maintainability
• Build and maintain RESTful APIs for system integration and internal process automation
• Use automated tests with PHPUnit to improve delivery reliability and reduce regression risks

Software Development Intern at 4mti

• Developed PHP web crawlers for automated data collection
• Processed, structured and persisted collected data using PostgreSQL

IT Assistant at Ragnarok Tecnologia

• Provided technical support for users, equipment and internal systems
• Performed basic network, hardware and software configuration and maintenance

MBA in Software Engineering – USP/ESALQ (2026-05)

Bachelor's Degree in Computer Engineering – Federal University of Ouro Preto - UFOP (2015 – 2021)

Technical Degree in Information Technology – Escola Estadual Professor Candido Gomes (2014 – 2015)