Guilhermo Masid
@guilhermomasid
Detail-oriented Full Stack Engineer building high-quality, impactful web and backend systems.
BrazilWhat I'm looking for
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
Full Stack Developer
Daktus
Jan 2020 - Present (5 years 9 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.
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.
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.
Education
Degrees, certifications, and relevant coursework
COÉcole 42
Advanced Specialization, Artificial Intelligence / Low-level Programming
2024 -
Advanced specialization program focused on Artificial Intelligence and low-level programming, continuing from foundational studies.
COÉcole 42
Common Core, Software Engineering
2022 - 2024
Two-year foundational software engineering program using project-based learning covering core programming and development practices.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Website
cv.masid.devJob categories
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