Development
JavaScript, Node.js, Vue.js, Laravel, APIs, integrations, application architecture, local systems, browser extensions and desktop tools.
David “Yuicchi” Rosa
Solving problems
through technology.
Senior Full Stack Developer building systems, products and digital experiences focused on solving real problems.
01 / ABOUT
FULL STACK / INFRA / PRODUCT
Systems before trends.
I build software by understanding the problem first. My work crosses product development, interfaces, infrastructure, servers, networks, cloud and operations. I value execution, stability, user experience and maintainable systems over tools chosen without context.
- Focus
- Execution / Stability
- Method
- Problem → Context → Tool
- Scope
- Software → Operations
02 / PROFESSIONAL
ESPECTRA TECNOLOGIA / ACTIVE
Professional focus / Callsys
At Espectra Tecnologia, most of my professional focus is dedicated to building Callsys, an omnichannel platform that connects sales, marketing, services and auditing in a single environment.
Institutional website ↗
OMNICHANNEL
01
VUE / LARAVEL
02
- Vue.js
- Laravel
- Node.js
- MariaDB
- Nginx
- PM2
03 / SELECTED WORK
OPEN SOURCE + PRIVATE
Selected systems
Vertical input. Horizontal narrative. Four products built around real constraints.
04 / LAB
TOOLS / EXPERIMENTS / NOTES
More experiments and tools
05 / CAPABILITIES
CONTEXT OVER PERCENTAGES
Knowledge in context
Technology is a means, not the destination. I combine development, data, infrastructure and process knowledge to turn ambiguous operational problems into systems people can actually use.
Data & infrastructure
MariaDB, Nginx, PM2, Linux, Debian, servers, hosting, networks, cloud, AWS, deploy, operation and monitoring.
Business & process
CRM, Help Desk, consulting, support, operations, automation and problem solving across technical and human contexts.
06 / OPEN SOURCE
PUBLIC REPOSITORIES / PRACTICAL LEARNING
Different needs, different tools.
These projects did not begin from one formula. Some were built for specific professionals, others as experiments, personal tools or projects shared with friends. Their common point is practical learning through execution.
github.com/yuicchicode ↗07 / WRITING
PROJECTS / IDEAS / SCIENCE
Notes from the workbench.
A personal space for projects, ideas, technology, science, experiments and technical problems.
Visit blog↗08 / CONTACT
PROFESSIONAL SIGNAL / OPEN CHANNEL
Get in touch
I am currently focused on my work at Espectra Tecnologia, while remaining open to relevant conversations, interesting projects, partnerships and knowledge exchange.