Open to opportunities

Guilhermo Masid

@guilhermomasid

Message

Detail-oriented Full Stack Engineer building high-quality, impactful web and backend systems.

Brazil

Message

What I'm looking for

I seek roles building scalable full-stack products where I can improve system architecture, user experience, and deliver measurable impact in collaborative teams.

I am a detail-oriented Full Stack Engineer specializing in scalable React applications and robust backend services using Node.js and Elixir. I focus on delivering end-to-end solutions across the TypeScript ecosystem and have led development of multi-platform products in healthcare, real estate, and pharmacy domains.

At Daktus I led development of a Clinical Decision Support System, building microservices with Elixir and TypeScript and implementing protocols to reduce medical errors and costs. I built React/TypeScript applications across Web, Desktop, and Chrome extensions, emphasizing reliability and safety in healthcare workflows.

I have also developed a luxury real estate marketplace using React, Next.js and Supabase, created multi-role dashboards for a pharmacy management platform, and completed advanced specializations in AI and low-level programming. I prioritize scalability, user experience, and thoughtful system architecture in every project.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Daktus

Jan 2020 - Present (6 years 5 months)

Led development of a multi-platform Clinical Decision Support System, building Elixir and TypeScript microservices and React/TypeScript apps to reduce medical errors and healthcare costs.

Elixir TypeScript React Microservices PostgreSQL Docker

Full Stack Developer

Zoh Marketplace

Jan 2025 - Dec 2026 (1 year 11 months)

Developed a luxury real estate marketplace with React, Next.js and Supabase, implementing premium property showcases and a private inquiry system for high-value negotiations.

React Next.js TypeScript Supabase UX Design Frontend Architecture Git

Full Stack Developer

Alltomatize

Jan 2021 - Dec 2023 (2 years 11 months)

Spearheaded full-stack development of a pharmacy management platform, delivering scalable multi-role dashboards and optimizing user experience for clients, administrators, and providers.

React TypeScript PostgreSQL Scalability Docker Git