Vinicius Brand

Refactored a legacy routing and delivery module as the sole programmer, collaborating with cross-functional teams to resolve a long-standing backlog of customer-reported bugs and significantly improve routing reliability.

Implemented an end-to-end Event Grouping feature (database schema, GraphQL API, React UI, multi-document billing reports), enabling rental operators to track and invoice multiple orders under a single event.

Led a printout standardization initiative, migrating 3 core customer-facing documents to a unified Rails backend with HTML/CSS templates, ensuring consistent branding and iterative style refinements.

Integrated a mobile barcode scanning library into the serialized inventory workflow, empowering warehouse staff to efficiently scan items and eliminate manual serial number entry.

Developed the Load Lists feature end-to-end from product specifications and Figma designs, including data modeling, full-stack UI, and a slip printing system for HTML/CSS and Zebra ZPL labels.

Led the development of LDAP write support for the Nextcloud open-source project, foundational for the official `ldap_write_support` community plugin, enabling user creation and management from the Nextcloud UI.

Served as the primary Ruby on Rails developer across multiple client projects, guiding architecture decisions and ensuring end-to-end delivery for RoR-based systems.

Administered the RIOS platform (rios.eita.coop.br), a multi-tenant SaaS cloud service for non-profits, integrating Nextcloud, Matrix.org chat, AWS Lambda functions, and managing Linux servers.

Built Castanhadora, a native Android (Java) application, empowering nut collectors in the Brazilian Amazon to track production and monitor fair sale prices.

Developed Lume, a Python/Django system that replaced a manual spreadsheet workflow for agroecological farm management, providing data visualization and reporting capabilities.

Constructed responsive and intuitive customer-facing UIs from designer wireframes using modern frontend technologies like Ember.js and Bootstrap.

Ensured seamless integration with a RESTful Ruby on Rails API, optimizing data flow and user experience within a lean development team.

Contributed to the full development lifecycle, translating design specifications into functional web applications.

Pioneered the development of foundational front-end components using Ruby on Rails, Backbone.js, and Marionette.js as the startup's inaugural engineering hire.

Contributed significantly to the initial architectural design and implementation of core web application features.

Collaborated closely with the founding team to establish development best practices and technical standards.

Modernized critical legacy interfaces within a large-scale automated fare collection system, enhancing system usability and performance.

Developed new features for public transport ticketing, utilizing Java, Struts2, and Hibernate to expand system capabilities.

Contributed to the improvement of system architecture and codebase quality through active development and testing.

Developed and deployed full-stack web applications tailored to client needs in specialized domains like forest engineering and medicine.

Managed end-to-end project cycles, including direct client consultation to gather requirements and ensure successful delivery.

Utilized PHP and Ruby on Rails to build robust and scalable web solutions, addressing specific industry challenges.

Engineered embedded Linux firmware in C, specifically for remote-controlled telecommunications equipment, as part of a key LACTEC-Siemens partnership.

Contributed to the development of critical software components, ensuring robust and reliable operation of telecommunications systems.

Collaborated with engineering teams to meet project specifications and delivery timelines.

Developed full-stack solutions at Thyamad Projects (PHP, eGroupWare customization) and web content at Editora Quantum (PHP, Oracle).

Applied technical skills as an Electronics Technician at Interatec.

Participated in academic research at UFPR in image processing and AI planning, alongside teaching responsibilities.