“In times of AI, human critical thinking is the most valuable asset to have.”
> whoami
Senior Full-Stack Developer & Tech Lead
I design and build scalable web products, backend systems, and AI-powered solutions with a strong focus on performance, reliability, and product impact.
scanAbout
Hi, my name is Michael Willian, and I am a senior full-stack developer with over six years of experience in the field. I first became interested in coding at the age of 13 and have been continuously learning and expanding my skills ever since. I have a passion for building intuitive, user-friendly web applications, and I am always striving to stay up to date with the latest technologies and best practices in the industry. I hope you enjoy my portfolio and the projects I have worked on throughout my career.
Featured Work

Traveler's Pen Tales
Platform for authors to showcase novels in a captivating way and help their words reach more readers.
Personal project: I built everything, from the system to deployment architecture

VendedorIA
Sales automation platform with WhatsApp Business onboarding and communication flows powered by Meta and Twilio.
TectoTecnologia | Full Stack Engineer

Expoflora
Ticketing and validation platform with offline-first mobile architecture for high-volume event operations.
Atlantis Group | Full Stack Engineer & Mobile

AlugueTotal
Smart rental operations platform with legal support and real-time split payments for all stakeholders.
TectoTecnologia | Full Stack Engineer

VisageClube
AI-powered visagism platform that helps barbers suggest the best haircut and style for each customer profile.
Atlantis Group | Full Stack Engineer & Mobile

Motique
A restaurant experience inspired by ingredients and spices from many countries.
Freelancer | Front-end Engineer
Levena
Event venue platform for unforgettable experiences across brunch, lunch, afternoon coffee, and dinner.
TectoTecnologia | Full Stack Engineer

Escola de Confeitaria
E-commerce platform for online and live fine pastry courses inspired by Brazilian and European confectionery traditions.
TectoTecnologia | Full Stack Engineer

Splitfy Concursos
MVP social platform for people preparing for government contests to split expenses and share rides.
Freelancer | Full Stack Engineer

AgenciaFute
Social media and marketing platform connecting football players, agents, clubs, and schools.
Freelancer | Full Stack Engineer
Contact
Open to discussing product engineering, architecture, and technical leadership opportunities.